Sallie Mae Posts Strong Third-Quarter 2006 Performance Results

* 14-Percent Growth in Total Managed Loan Portfolio

Sallie Mae Posts Strong Third-Quarter 2006 Performance Results

RESTON, Va., Oct. 19 /PRNewswire-FirstCall/ -- SLM Corporation (NYSE: SLM) , commonly known as Sallie Mae, today reported third-quarter 2006 earnings and performance results that include a total managed student loan portfolio of $137 billion, a 14-percent increase from the year-ago quarter.

This increase was driven by a record quarter of education loan purchases that topped $11 billion, a 36-percent increase over the same quarter last year.

During the 2006 third quarter, the company originated more than $7.8 billion in loans through its preferred channel, with $4.6 billion coming through the company's internal lending brands, a 35-percent increase from the year-ago quarter. Preferred-channel loan originations are loans funded by the company's internal lending brands and external lending partners. Year to date, preferred-channel loan originations totaled $18.6 billion, with nearly $10 billion coming from the company's internal lending brands.

"Core earnings" net income was $321 million for the 2006 third quarter, and $927 million for the first nine months of 2006. On a diluted share basis, third-quarter 2006 "core earnings" net income was $.73, compared to $.61 in the year-ago period as adjusted for stock-based compensation and one-time items, a 20-percent increase.

"In the third quarter, we delivered at the high end of our 15 to 20 percent earnings-per-share goal. Our portfolio growth, combined with the performance of our fee-based businesses, continue to position us very well in a growing student loan marketplace. Our ability to grow our earning assets at a record clip in this competitive environment positions us well to continue our long-term earnings growth," said Tim Fitzpatrick, CEO.

Sallie Mae reports financial results on a GAAP basis and also presents certain "core earnings" performance measures on a basis that differs from GAAP. The company's management, equity investors, credit rating agencies and debt capital providers use these "core earnings" measures to monitor the company's business performance.

Third-quarter 2006 GAAP net income was $263 million, or $.60 per diluted share, compared to $431 million, or $.95 per diluted share, in the year-ago quarter. GAAP net income year to date in 2006 totaled $1.1 billion, compared to $951 million in the same period in 2005. Included in these GAAP results are pre-tax net losses on derivative and hedging activities of $(131) million in the third-quarter 2006 and $(95) million year-to-date 2006, compared to pre-tax net gains of $316 million and $176 million in the respective year-ago periods.

"Core earnings" net interest income was $601 million in the 2006 third quarter and $1.8 billion year-to-date, up 15 percent from the first nine months of 2005.

"Core earnings" fee income and collection revenue, which includes fees earned from guarantor servicing, debt management activity and collection revenue, were $219 million in the 2006 third quarter, up 29 percent from the year-ago quarter. Year-to-date 2006, "core earnings" fee income and collection revenue were $585 million, compared to $474 million in the first three quarters of 2005. "Core earnings" operating expenses were $317 million during the third quarter 2006, compared to $271 million in the year-ago quarter.

Both a description of the "core earnings" treatment and a full reconciliation to the GAAP income statement can be found in the Third Quarter 2006 Supplemental Earnings Disclosure accompanying this press release, which is posted under the Investors page at http://www.salliemae.com/about/investors/stockholderinfo/earningsinfo.

Total equity for the company at Sept. 30, 2006, was $4.5 billion, up from $4.4 billion at June 30, 2006. The company's tangible capital at the end of the 2006 third quarter was 2.03 percent of managed assets, compared to 2.19 percent at prior quarter end.

The company will host its quarterly earnings conference call today at noon. Sallie Mae executives will be on hand to discuss various highlights of the quarter and to answer questions related to the company's performance. Individuals interested in participating should call the following number today, Oct. 19, 2006, starting at 11:45 a.m. EDT: (877) 356-5689 (USA and Canada) or (706) 679-0623 (International). The conference call will be replayed continuously beginning Thursday, Oct. 19, at 3:00 p.m. EDT and concluding at 11:59 p.m. EDT on Thursday, Nov. 2. Please dial (800) 642-1687 (USA and Canada) or dial (706) 645-9291 (International) and use access code 7891213. In addition, there will be a live audio Web cast of the conference call, which may be accessed at http://www.salliemae.com/. A replay will be available beginning 30-45 minutes after the live broadcast.

Forward Looking Statements:

This press release contains "forward-looking statements" including expectations as to future market share, the success of preferred channel originations and future results. These statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Because such statements inherently involve risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Such risks include, among others, changes in the terms of student loans and the educational credit marketplace arising from the implementation of applicable laws and regulations, and from changes in such laws and regulations, changes in the demand for educational financing or in financing preferences of educational institutions, students and their families, and changes in the general interest rate environment. For more information, see the company's filings with the Securities and Exchange Commission.

SLM Corporation (NYSE: SLM) , commonly known as Sallie Mae, is the nation's leading provider of saving- and paying-for-college programs. The company manages $137 billion in education loans and serves nearly 10 million student and parent customers. Through its Upromise affiliates, the company also manages more than $11 billion in 529 college-savings plans, and assists more than 7 million members with automatic savings through rebates on everyday purchases. Sallie Mae and its subsidiaries offer debt management services as well as business and technical products to a range of business clients, including higher education institutions, student loan guarantors and state and federal agencies. More information is available at http://www.salliemae.com/. SLM Corporation and its subsidiaries are not sponsored by or agencies of the United States of America.

                             SLM CORPORATION
                     Supplemental Earnings Disclosure
                            September 30, 2006
             (Dollars in millions, except earnings per share)

                                              Quarters ended
                                  --------------------------------------
                                   Sept. 30,      June 30,      Sept. 30,
                                     2006          2006          2005
                                   ---------     ---------     ---------
                                  (unaudited)   (unaudited)   (unaudited)
  SELECTED FINANCIAL
   INFORMATION AND RATIOS -
   GAAP Basis

  Net income                     $     263      $     724     $     431
  Diluted earnings
   per common share(1)(2)        $     .60      $    1.52     $     .95
  Return on assets                    1.10%          3.20%         2.01%

  "Core Earnings" Basis(3)

  "Core Earnings" net income     $     321      $     320     $     312
  "Core Earnings" diluted
   earnings per common share
   (1)(2)                        $     .73      $     .72     $     .69
  "Core Earnings" return
   on assets                           .86%           .90%          .94%
  OTHER OPERATING STATISTICS

  Average on-balance sheet
   student loans                 $  84,241      $  80,724     $  77,541
  Average off-balance sheet
   student loans                    48,226         47,716        40,742
                                 ---------      ---------     ---------
  Average Managed student
   loans                         $ 132,467      $ 128,440     $ 118,283
                                 =========      =========     =========
  Ending on-balance sheet
   student loans, net            $  88,038      $  82,279     $  81,626
  Ending off-balance sheet
   student loans, net               48,897         47,865        39,008
                                 ---------      ---------     ---------
  Ending Managed student
   loans, net                    $ 136,935      $ 130,144     $ 120,634
                                 =========      =========     =========
  Ending Managed FFELP
   Stafford and Other
   Student Loans, net            $  39,787      $  41,926     $  43,082
  Ending Managed Consolidation
   Loans, net                       75,947         69,195        62,161
  Ending Managed Private
   Education Loans, net             21,201         19,023        15,391
                                 ---------      ---------     ---------
  Ending Managed student
   loans, net                    $ 136,935      $ 130,144     $ 120,634
                                 =========      =========     =========


                                              Nine months ended
                                                   Sept. 30,
                                           -----------------------
                                             2006          2005
                                           ---------     ---------
                                          (unaudited)   (unaudited)
  SELECTED FINANCIAL
  INFORMATION AND RATIOS -
  GAAP Basis

  Net income                               $   1,139     $     951
  Diluted earnings
   per common share(1)(2)                  $    2.56     $    2.10
  Return on assets                              1.65%         1.60%

  "Core Earnings" Basis(3)

  "Core Earnings" net income               $     927     $     847
  "Core Earnings" diluted
   earnings per common share(1)(2)         $    2.09     $    1.87
  "Core Earnings" return
   on assets                                     .87%          .90%

  OTHER OPERATING STATISTICS

  Average on-balance sheet
   student loans                           $  82,610     $  71,964
  Average off-balance sheet
   student loans                              46,027        42,137
                                           ---------     ---------
  Average Managed student
   loans                                   $ 128,637     $ 114,101
                                           =========     =========


  (1) In December 2004, the Company adopted the Emerging Issues Task Force
      ("EITF") Issue No. 04-8, "The Effect of Contingently Convertible Debt
      on Diluted Earnings per Share," as it relates to the Company's $2
      billion in contingently convertible debt instruments ("Co-Cos") issued
      in May 2003. EITF No 04-8 requires the shares underlying Co-Cos to be
      included in diluted earnings per common share computations regardless
      of whether the market price trigger or the conversion price has been
      met, using the "if-converted" method. The impact of Co-Cos due to the
      application of EITF No. 04-8 was to decrease diluted earnings per
      common share by the following amounts:


                                              Quarters ended
                                 --------------------------------------
                                  Sept. 30,      June 30,      Sept. 30,
                                    2006          2006           2005
                                  ---------     ---------     ---------
                                 (unaudited)   (unaudited)   (unaudited)
   Impact of Co-Cos on GAAP
    diluted earnings per
    common share                 $       -    $    (.08)    $    (.04)
   Impact of Co-Cos on
    "Core Earnings" diluted
    earnings per common share    $    (.01)   $    (.01)    $    (.02)


                                                  Nine months ended
                                                      Sept. 30,
                                              -------------------------
                                                2006          2005
                                             ---------      ---------
                                            (unaudited)    (unaudited)
   Impact of Co-Cos on GAAP
    diluted earnings per
    common share                              $    (.07)    $    (.08)
   Impact on Co-Cos on
    "Core Earnings" diluted
     earnings per common share                $    (.04)    $    (.06)


  (2) During the first quarter of 2006, the Company adopted the Financial
      Accounting Standards Board's ("FASB's") Statement of Financial
      Accounting Standards ("SFAS") No. 123(R), "Share Based Payment," which
      is a revision of SFAS No. 123, "Accounting for Stock-Based
      Compensation." SFAS No. 123(R) requires all share based payments to
      employees to be recognized in the income statement based on their fair
      values. For the quarters ended September 30, 2006 and June 30, 2006,
      reported net income attributable to common stock included $10 million
      and $9 million, respectively, related to stock option compensation
      expense, net of related tax effects. The following table is a pro
      forma presentation of the Company's results had SFAS No. 123(R) been
      in effect for all periods presented.


                                              Quarters ended
                                 --------------------------------------
                                  Sept. 30,      June 30,      Sept. 30,
                                    2006           2006          2005
                                  ---------     ---------     ---------
                                 (unaudited)   (unaudited)   (unaudited)
   Pro forma GAAP
    diluted earnings per
    common share                 $     .60    $    1.52     $     .93
   Pro forma "Core Earnings"
    diluted earnings per
    common share                 $     .73    $     .72     $     .67


                                                  Nine months ended
                                                      Sept. 30,
                                              -------------------------
                                                2006          2005
                                             ---------      ---------
                                            (unaudited)    (unaudited)
   Pro forma GAAP
    diluted earnings per
    common share                              $    2.56    $     2.04
   Pro forma "Core Earnings"
    diluted earnings per
    common share                              $    2.09    $     1.81



  (3) See explanation of "Core Earnings" performance measures under
      "Reconciliation of 'Core Earnings' Net Income to GAAP Net Income."



                             SLM CORPORATION
                       Consolidated Balance Sheets
                 (In thousands, except per share amounts)

                             Sept. 30,      June 30,     Sept. 30,
                               2006           2006          2005
                            -----------   -----------   -----------
                            (unaudited)   (unaudited)    (unaudited)
  Assets

  FFELP Stafford and Other
   Student Loans
  (net of allowance
   for losses of $7,649;
   $6,860; and $0,
   respectively)           $ 22,613,604  $ 21,390,845  $ 22,353,605
  Consolidation Loans
   (net of allowance
   for losses of $10,720;
   $10,090; and $5,627,
   respectively)             57,201,754    54,054,932    51,193,725
  Private Education Loans
   (net of allowance for
   losses of $274,974;
   $251,582; and $193,332,
   respectively)              8,222,400     6,832,843     8,078,650
  Other loans (net of
   allowance for losses
   of $18,327; $15,190;
   and $13,563, respectively) 1,257,252     1,050,632     1,094,464
  Cash and investments        4,248,639     6,204,462     3,773,014
  Restricted cash and
   investments                3,957,535     3,489,542     2,706,925
  Retained Interest in
   off-balance sheet
   securitized loans          3,613,376     3,151,855     2,330,390
  Goodwill and acquired
   intangible assets, net     1,333,123     1,080,703     1,063,916
  Other assets                4,605,014     4,650,851     3,725,670
                           ------------  ------------  ------------
  Total assets             $107,052,697  $101,906,665  $ 96,320,359
                           ============  ============  ============

  Liabilities

  Short-term borrowings    $  3,669,842  $  3,801,266  $  4,652,334
  Long-term borrowings       94,816,563    90,506,785    84,499,739
  Other liabilities           4,053,931     3,229,477     3,330,763
                           ------------  ------------  ------------
  Total liabilities         102,540,336    97,537,528    92,482,836
                           ------------  ------------  ------------

  Commitments and
   contingencies

  Minority interest
   in subsidiaries                9,338         9,369        13,725


  Stockholders' equity

  Preferred stock, par
   value $.20 per share,
   20,000 shares authorized:
   Series A: 3,300; 3,300;
   and 3,300 shares,
   respectively,
   issued at stated value
   of $50 per share;
   Series B: 4,000; 4,000; and
   4,000 shares respectively,
   issued at stated value of
   $100 per share               565,000       565,000       565,000
  Common stock, par
   value $.20 per share,
   1,125,000 shares
   authorized: 431,590;
   430,753; and 488,525
   shares, respectively,
   issued                        86,318        86,151        97,705
  Additional paid-in
   capital                    2,490,851     2,440,565     2,107,961
  Accumulated other
   comprehensive income,
   net of tax                   460,527       370,204       407,768
  Retained earnings           1,928,204     1,775,948     3,195,034
                           ------------  ------------  ------------
  Stockholders' equity
   before treasury stock      5,530,900     5,237,868     6,373,468
  Common stock held in
   treasury at cost:
   22,229; 19,078; and
   69,927 shares,
   respectively               1,027,877       878,100     2,549,670
                           ------------  ------------  ------------
  Total stockholders'
   equity                     4,503,023     4,359,768     3,823,798
                           ------------  ------------  ------------
  Total liabilities and
   stockholders' equity    $107,052,697  $101,906,665  $ 96,320,359
                           ============  ============  ============



                             SLM CORPORATION
                    Consolidated Statements of Income
                 (In thousands, except per share amounts)

                                             Quarters ended
                                 ------------------------------------
                                 Sept. 30,     June 30,     Sept. 30,
                                   2006         2006          2005
                                 --------     ---------     ---------
                               (unaudited)   (unaudited)   (unaudited)

  Interest income:
   FFELP Stafford and Other
    Student Loans            $    364,621  $    337,090  $    270,444
   Consolidation Loans            916,091       841,591       676,820
   Private Education
    Loans                         254,747       233,696       173,467
   Other loans                     24,550        23,541        21,614
   Cash and investments           141,083       124,954        70,541
                             ------------  ------------  ------------
  Total interest income         1,701,092     1,560,872     1,212,886
  Interest expense              1,363,271     1,204,067       828,122
                             ------------  ------------  ------------
  Net interest income             337,821       356,805       384,764
  Less: provisions for
   losses                          67,242        67,396        12,217
                             ------------  ------------  ------------
  Net interest income
   after provisions for
   losses                         270,579       289,409       372,547
                             ------------  ------------  ------------

  Other income:
   Gains on student loan
    securitizations               201,132       671,262             -
   Servicing and
    securitization revenue        187,082        82,842       (16,194)
   Loss on investments, net       (13,427)       (8,524)      (43,030)
   Gains (losses) on derivative
    and hedging activities,
    net                          (130,855)      122,719       316,469
   Guarantor servicing fees        38,848        33,256        35,696
   Debt management fees           122,556        90,161        92,727
   Collections revenue             57,913        67,357        41,772
   Other                           87,923        75,081        74,174
                             ------------  ------------  ------------
  Total other income              551,172     1,134,154       501,614

  Operating expenses              353,494       316,602       291,961


  Income before income
   taxes and minority interest
   in net earnings of
   subsidiaries                   468,257     1,106,961       582,200
  Income taxes                    203,686       381,828       149,821
                             ------------  ------------  ------------
  Income before minority
   interest in net earnings
   of subsidiaries                264,571       725,133       432,379
  Minority interest in net
   earnings of subsidiaries         1,099         1,355         1,029
                             ------------  ------------  ------------
  Net income                      263,472       723,778       431,350
  Preferred stock dividends         9,221         8,787         7,288
                             ------------  ------------  ------------
  Net income attributable
   to common stock           $    254,251  $    714,991  $    424,062
                             ============  ============  ============
  Basic earnings per common
   share                     $        .62  $       1.74  $       1.02
                             ============  ============  ============
  Average common shares
   outstanding                    410,034       410,957       417,235
                             ============  ============  ============
  Diluted earnings per common
   share                    $         .60  $       1.52  $        .95
                             ============  ============  ============
  Average common and common
   equivalent shares
   outstanding                    449,841       454,314       458,798
                             ============  ============  ============
   Dividends per common
    share                    $        .25  $        .25  $       .22
                             ============  ============  ============



                                               Nine months ended
                                                   Sept. 30,
                                             ----------------------
                                               2006          2005
                                             --------      --------
                                           (unaudited)   (unaudited)
  Interest income:
   FFELP Stafford and
    Other Student Loans                  $  1,000,211  $    699,687
   Consolidation Loans                      2,579,017     1,739,670
   Private Education
    Loans                                     729,796       429,892
   Other loans                                 71,398        61,813
   Cash and investments                       361,847       186,835
                                         ------------  ------------
  Total interest income                     4,742,269     3,117,897
  Interest expense                          3,660,122     2,056,585
                                         ------------  ------------
  Net interest income                       1,082,147     1,061,312
  Less: provisions for
   losses                                     194,957       137,688
                                         ------------  ------------
  Net interest income
   after provisions for
   losses                                     887,190       923,624
                                         ------------  ------------

  Other income:
   Gains on student loan
    securitizations                           902,417       311,895
   Servicing and
    securitization revenue                    368,855       276,698
   Losses on investments, net                 (24,899)      (56,976)
   Gains (losses) on derivative
    and hedging activities, net               (94,875)      176,278
   Guarantor servicing fees                    99,011        93,922
   Debt management fees                       304,329       261,068
   Collections revenue                        181,951       118,536
   Other                                      234,380       206,187
                                         ------------  ------------
  Total other income                        1,971,169     1,387,608

  Operating expenses                          993,405       841,665
                                         ------------  ------------
  Income before income
   taxes and minority interest
   in net earnings of
   subsidiaries                             1,864,954     1,469,567
  Income taxes                                722,559       512,860
                                         ------------  ------------
  Income before minority
   interest in net earnings
   of subsidiaries                          1,142,395       956,707
  Minority interest in net
   earnings of subsidiaries                     3,544         5,458
                                          ------------  ------------
  Net income                                1,138,851       951,249
  Preferred stock dividends                    26,309        14,071
                                         ------------  ------------
  Net income attributable
   to common stock                       $  1,112,542  $    937,178
                                         ============  ============
  Basic earnings per common
   share                                 $       2.71  $       2.24
                                         ============  ============
  Average common shares
   outstanding                                411,212       419,205
                                         ============  ============
  Diluted earnings per common
   share                                 $       2.56  $       2.10
                                         ============  ============
  Average common and common
   equivalent shares
   outstanding                                452,012       461,222
                                         ============  ============
  Dividends per common
   share                                 $        .72  $        .63
                                         ============  ============



                             SLM CORPORATION
                   Segment and Non-GAAP "Core Earnings"
                    Consolidated Statements of Income
                              (In thousands)

                                       Quarter ended Sept. 30, 2006
                   --------------------------------------------------------
                                             (unaudited)

                                    Corporate  Total
                                       and     "Core     Adjust-    Total
                    Lending    DMO    Other   Earnings"   ments     GAAP
                   --------- ------- ------- ---------  --------  ---------

  Interest income:
    FFELP Stafford
     and Other
     Student Loans  $701,615  $  -   $  -    $701,615  $(336,994) $ 364,621
    Consolidation
     Loans         1,241,999     -      -   1,241,999   (325,908)   916,091
   Private
    Education Loans  557,787     -      -     557,787   (303,040)   254,747
  Other loans         24,550     -      -      24,550          -     24,550
  Cash and
   investments       206,837     -    2,782   209,619    (68,536)   141,083
                   --------- ------- ------- ---------  --------  ---------
  Total interest
   income          2,732,788     -    2,782 2,735,570 (1,034,478) 1,701,092
  Total interest
   expense         2,124,587   6,088  3,515 2,134,190   (770,919) 1,363,271
                   --------- ------- ------- ---------  --------  ---------
  Net interest
   income            608,201  (6,088)  (733)  601,380   (263,559)   337,821
  Less: provisions
   for losses         79,774     -       (3)   79,771    (12,529)    67,242
                   --------- ------- ------- ---------  --------  ---------
  Net interest
   income after
   provisions
   for losses        528,427  (6,088)  (730)  521,609   (251,030)   270,579
  Fee income            -    122,556 38,848   161,404        -      161,404
  Collections revenue   -     57,744    -      57,744        169     57,913
  Other income        46,074     -   40,988    87,062    244,793    331,855
  Operating
   expenses(1)       156,168  91,341 69,644   317,153     36,341    353,494
                   --------- ------- ------- ---------  --------  ---------
  Income before
   income taxes
   and minority
   interest in net
   earnings of
   subsidiaries      418,333  82,871  9,462   510,666    (42,409)   468,257
  Income tax
   expense(2)        154,783  30,662  3,502   188,947     14,739    203,686
  Minority interest
   in net earnings
   of subsidiaries      -      1,099    -       1,099        -        1,099
                   --------- ------- ------- ---------  --------  ---------
  Net income        $263,550 $51,110 $5,960  $320,620   $(57,148)  $263,472
                   ========= ======= ======= =========  ========  =========

  (1) Operating expenses for the Lending, DMO and Corporate and Other
      Business segments include $8 million, $4 million, and $4 million,
      respectively, of stock-based employee compensation expense due to the
      implementation of SFAS No. 123(R) in the first quarter of 2006.

  (2) Income taxes are based on a percentage of net income before tax for
      the individual reportable segment.


                                 Quarter ended June 30, 2006
                   --------------------------------------------------------
                                        (unaudited)

                                    Corporate  Total
                                       and     "Core     Adjust-    Total
                    Lending    DMO    Other   Earnings"   ments     GAAP
                   --------- ------- ------- ---------  --------  ---------
  Interest income:
   FFELP Stafford
    and Other
    Student Loans  $718,909  $  -    $  -   $ 718,909 $(381,819)  $337,090
   Consolidation
    Loans         1,114,355     -       -   1,114,355  (272,764)   841,591
   Private
    Education
    Loans           485,429     -       -     485,429  (251,733)   233,696
   Other loans       23,541     -       -      23,541        -      23,541
   Cash and
    investments     169,877     -      659    170,536   (45,582)   124,954
                   --------- ------- ------- ---------  --------  ---------
  Total interest
   income         2,512,111     -      659  2,512,770  (951,898) 1,560,872
  Total interest
   expense        1,903,523   5,466  1,345  1,910,334  (706,267) 1,204,067
                   --------- ------- ------- ---------  --------  ---------
  Net interest
   income           608,588  (5,466)  (686)   602,436  (245,631)   356,805
  Less: provisions
   for losses        60,009     -      (32)    59,977     7,419     67,396
                   --------- ------- ------- ---------  --------  ---------
  Net interest
   income after
   provisions
   for losses       548,579  (5,466)  (654)   542,459  (253,050)   289,409
  Fee income           -     90,161 33,256    123,417        -     123,417
  Collections
   revenue             -     67,213     -      67,213       144     67,357
  Other income       50,771     -   24,338     75,109   868,271    943,380
  Operating
   expenses(1)      163,162  85,110 50,235    298,507    18,095    316,602
                   --------- ------- ------- ---------  --------  ---------
  Income before
   income taxes
   and minority
   interest in
   net earnings
   of subsidiaries  436,188  66,798  6,705    509,691   597,270  1,106,961
  Income tax
   expense(2)       161,391  24,715  2,480    188,586   193,242    381,828
  Minority interest
   in net earnings
   of subsidiaries      -     1,355     -       1,355        -       1,355
                   --------- ------- ------- ---------  --------  ---------
  Net income       $274,797 $40,728 $4,225   $319,750   $404,028  $723,778
                   ========= ======= ======= =========  ========  =========

   (1) Operating expenses for the Lending, DMO and Corporate and Other
       Business segments include $8 million, $2 million, and $4 million,
       respectively, of stock-based employee compensation expense due to the
       implementation of SFAS No. 123(R) in the first quarter of 2006.

   (2) Income taxes are based on a percentage of net income before tax for
       the individual reportable segment.



                                 Quarter ended Sept. 30, 2005
                   --------------------------------------------------------
                                        (unaudited)

                                    Corporate  Total
                                       and     "Core     Adjust-    Total
                   Lending(2) DMO(2) Other(2) Earnings"   ments     GAAP
                   --------- ------- ------- ---------  --------  ---------
  Interest income:
   FFELP Stafford
    and Other
    Student Loans  $585,984  $  -     $  -    $585,984  $(315,540)  $270,444
   Consolidation
    Loans           832,893     -        -     832,893   (156,073)   676,820
   Private
    Education
    Loans           312,184     -        -     312,184   (138,717)   173,467
   Other loans       21,614     -        -      21,614        -       21,614
   Cash and
    investments     112,347     -     1,366    113,713    (43,172)    70,541
                  --------- ------- ------- ---------   --------  ---------
  Total interest
   income         1,865,022     -     1,366  1,866,388   (653,502) 1,212,886
  Total interest
   expense        1,299,316   5,689   1,772  1,306,777   (478,655)   828,122
                  --------- ------- ------- ---------   --------  ---------
  Net interest
   income           565,706  (5,689)   (406)   559,611   (174,847)   384,764
  Less: provisions
   for losses          (719)    -       539       (180)    12,397     12,217
                  --------- ------- ------- ---------   --------  ---------
  Net interest
   income after
   provisions
   for losses       566,425  (5,689)   (945)   559,791   (187,244)   372,547
  Fee income            -    92,727  35,696    128,423        -      128,423
  Collections
   revenue              -    41,772      -      41,772        -       41,772
  Other income          106     (66) 36,859     36,899    294,520    331,419
  Operating
   expenses         133,850  71,718  65,025    270,593     21,368    291,961
                  ---------- ------- ------- ---------   --------  ---------
  Income (loss)
   before income
   taxes and
   minority
   interest in net
   earnings of
   subsidiaries     432,681  57,026   6,585    496,292     85,908    582,200
  Income tax
   expense
   (benefit)(1)     160,092  21,099   2,437    183,628    (33,807)   149,821
  Minority interest
   in net earnings
   of subsidiaries      -     1,029      -       1,029        -        1,029
                  ---------- ------- ------- ---------   --------  ---------
  Net income
   (loss)          $272,589 $34,898  $4,148   $311,635   $119,715   $431,350
                  ========= ======= ======= ==========  ========= ==========

  (1) Income taxes are based on a percentage of net income before tax for
      the individual reportable segment.

  (2) In the first quarter of 2006, the Company changed its method for
      allocating certain Corporate and Other expenses to the other business
      segments. All periods presented have been updated to reflect the new
      allocation methodology.


                              Nine Months ended Sept. 30, 2006
                   ---------------------------------------------------------
                                        (unaudited)

                                  Corporate  Total
                                     and     "Core      Adjust-      Total
                  Lending    DMO    Other   Earnings"    ments       GAAP
                 --------- ------- ------- ---------   --------    ---------
  Interest income:
   FFELP Stafford
    and Other
    Student
    Loans      $2,070,275   $-      $-    $2,070,275 $(1,070,064) $1,000,211
   Consolidation
    Loans       3,384,316    -       -     3,384,316    (805,299)  2,579,017
   Private
    Education
    Loans       1,471,976    -       -     1,471,976    (742,180)    729,796
   Other loans     71,398    -       -        71,398        -         71,398
   Cash and
    investments   507,175    -      4,764    511,939    (150,092)    361,847
                --------- ------- -------- ---------    ---------  ---------
  Total interest
   income       7,505,140    -      4,764  7,509,904  (2,767,635)  4,742,269
  Total interest
   expense      5,687,482  16,710   6,138  5,710,330  (2,050,208)  3,660,122
                --------- ------- -------- ---------    ---------  ---------
  Net interest
   income       1,817,658 (16,710) (1,374) 1,799,574    (717,427)  1,082,147
  Less:
   provisions
   for losses     214,603    -        (16)   214,587     (19,630)    194,957
                --------- ------- -------- ---------    ---------  ---------
  Net interest
   income after
   provisions
   for losses   1,603,055 (16,710) (1,358) 1,584,987    (697,797)    887,190
  Fee income        -     304,329  99,011    403,340        -        403,340
  Collections
   revenue          -     181,497    -       181,497         454     181,951
  Other income    137,417    -     95,335    232,752   1,153,126   1,385,878
  Operating
   expenses(1)    480,768 265,964 178,391    925,123      68,282     993,405
                --------- ------- -------- ---------    ---------  ---------
  Income before
   income taxes
   and minority
   interest in
   net earnings
   of
   subsidiaries 1,259,704 203,152  14,597  1,477,453     387,501   1,864,954
  Income tax
   expense(2)     466,091  75,166   5,401    546,658     175,901     722,559
  Minority
   interest
   in net earnings
   of subsidiaries  -       3,544     -        3,544        -          3,544
                --------- ------- -------- ---------    ---------  ---------
  Net income     $793,613 $124,442 $9,196   $927,251    $211,600  $1,138,851
                ========= ======= ======== =========    =========  =========

  (1) Operating expenses for the Lending, DMO and Corporate and Other
      Business segments include $26 million, $9 million, and $13 million,
      respectively, of stock-based employee compensation expense due to the
      implementation of SFAS No. 123(R)in the first quarter of 2006.

  (2) Income taxes are based on a percentage of net income before tax for
      the individual reportable segment.


                                  Nine Months ended Sept. 30, 2005
                   ---------------------------------------------------------
                                        (unaudited)

                                     Corporate Total
                                       and     "Core     Adjust-    Total
                   Lending(2) DMO(2) Other(2) Earnings"   ments     GAAP
                   --------- ------- ------- ---------  --------  ---------
  Interest income:
   FFELP Stafford
   and Other
   Student
   Loans         $1,678,268   $-      $-    $1,678,268  $(978,581)  $699,687
  Consolidation
   Loans          2,080,287    -       -     2,080,287   (340,617) 1,739,670
  Private
   Education
   Loans            786,439    -       -       786,439   (356,547)   429,892
  Other loans        61,813    -       -        61,813       -        61,813
  Cash and
   investments      268,195    -     3,170     271,365    (84,530)   186,835
                   --------  ------- ------- --------- ---------   ---------
  Total interest
   income         4,875,002    -     3,170   4,878,172 (1,760,275) 3,117,897
  Total interest
   expense        3,290,419  13,645  4,543   3,308,607 (1,252,022) 2,056,585
                  ---------  ------- ------- --------- ----------  ---------
  Net interest
   income         1,584,583 (13,645)(1,373)  1,569,565   (508,253) 1,061,312
  Less:
   provisions
   for losses        68,783    -       184      68,967     68,721    137,688
                  ---------  ------- ------- --------- ----------  ---------
  Net interest
   income
   after
   provisions
   for losses     1,515,800 (13,645) (1,557) 1,500,598   (576,974)   923,624
  Fee income          -     261,068  93,922    354,990        -      354,990
  Collections
   revenue            -     118,536    -       118,536        -      118,536
  Other income       72,004       1  97,731    169,736    744,346    914,082
  Operating
   expenses         408,627 203,130 179,535    791,292     50,373    841,665
                  --------- ------- ------- ---------- ----------  ---------
  Income before
   income taxes
   and minority
   interest in
   net earnings
   of
   subsidiaries   1,179,177 162,830  10,561  1,352,568  116,999  1,469,567
  Income tax
   expense(2)       436,295  60,247   3,908    500,450   12,410    512,860
  Minority interest
   in net
   earnings of
   subsidiaries       1,749   3,449    -         5,198      260      5,458
                  ---------  ------- ------- --------- --------- ---------
  Net income       $741,133 $99,134  $6,653   $846,920 $104,329   $951,249
                  =========  ======= ======= ========= ========= =========

  (1) Income taxes are based on a percentage of net income before tax for
      the individual reportable segment.

  (2) In the first quarter of 2006, the Company changed its method for
      allocating certain Corporate and Other expenses to the other business
      segments. All periods presented have been updated to reflect the new
      allocation methodology.


                             SLM CORPORATION
     Reconciliation of "Core Earnings" Net Income to GAAP Net Income
                 (In thousands, except per share amounts)

                                                  Quarters ended
                                     --------------------------------------
                                      Sept. 30,      June 30,      Sept. 30,
                                        2006           2006          2005
                                     ----------    ----------    ----------
                                     (unaudited)   (unaudited)   (unaudited)

  "Core Earnings" net income(A)       $ 320,620     $ 319,750    $ 311,635
  "Core Earnings" adjustments:
  Net impact of
   securitization accounting            159,468       503,083     (252,748)
  Net impact of
   derivative accounting               (112,699)      164,678      409,082
  Net impact of Floor Income            (52,781)      (52,333)     (54,318)
  Amortization of acquired
   Intangibles(B)                       (36,397)      (18,158)     (16,108)
                                       ---------     ---------    ---------
  Total "Core Earnings"
   adjustments before
   income taxes and minority
   interest in net earnings
   of subsidiaries                      (42,409)      597,270       85,908

  Net tax effect(C)                     (14,739)     (193,242)      33,807
                                       ---------     ---------    ---------
  Total "Core Earnings"
   adjustments before
   minority interest in net
   earnings of subsidiaries             (57,148)      404,028      119,715
  Minority interest in net
    earnings of subsidiaries                -             -            -
                                       ---------     ---------    ---------
  Total "Core Earnings"
   adjustments                          (57,148)      404,028      119,715
                                       ---------     ---------    ---------
  GAAP net income                     $ 263,472     $ 723,778     $431,350
                                       =========     =========    =========
  GAAP diluted
   earnings per
   common share                       $     .60     $    1.52     $     95
                                       =========     =========    =========

  (A) "Core earnings" diluted
   earnings per
   common share                       $     .73     $     .72     $    .69
                                       =========     =========    =========

  (B)Represents goodwill and intangible impairment and amortization of
  acquired intangibles.

  (C)Such tax effect is based upon the Company's "Core Earnings" effective
  tax rate for the year. The net tax effect results primarily from the
  exclusion of the permanent income tax impact of the equity forward
  contracts.


                                                   Nine months ended
                                                       Sept. 30
                                                ------------------------
                                                  2006           2005
                                                ----------    ----------
                                                (unaudited)   (unaudited)

  "Core Earnings" net income(D)                $  927,251    $  846,920
  "Core Earnings" adjustments:
   Net impact of
    securitization accounting                     600,490      (177,589)
   Net impact of
    derivative accounting                          13,162       487,705
   Net impact of Floor Income                    (157,683)     (147,835)
   Net impact of acquired
    intangibles(E)                                (68,468)      (45,282)
                                                ----------    ----------
  Total "Core Earnings"
   adjustments before
   income taxes and minority
   interest in net earnings
   of subsidiaries                                387,501       116,999

  Net tax effect(F)                              (175,901)      (12,410)
                                                ----------    ----------
  Total "Core Earnings"
   adjustments before
   minority interest in net
   earnings of subsidiaries                       211,600       104,589
  Minority interest in net
   earnings of subsidiaries                             -          (260)
                                                ----------    ----------
  Total "Core Earnings"
   adjustments                                    211,600       104,329
                                                ----------    ----------
  GAAP net income                              $1,138,851    $  951,249
                                                ==========    ==========
  GAAP diluted
   earnings per
   common share                                $     2.56    $     2.10
                                                ==========    ==========

  (D)"Core Earnings" diluted
   earnings per
   common share                                $     2.09    $     1.87
                                                ==========    ==========

  (E)Represents goodwill and intangible impairment and amortization of
  acquired intangibles.

  (F)Such tax effect is based upon the Company's "Core Earnings" effective
  tax rate for the year. The net tax effect results primarily from the
  exclusion of the permanent income tax impact of the equity forward
  contracts.


  "Core Earnings"

In accordance with the Rules and Regulations of the Securities and Exchange Commission ("SEC"), we prepare financial statements in accordance with generally accepted accounting principles in the United States of America ("GAAP"). In addition to evaluating the Company's GAAP-based financial information, management evaluates the Company's business segments on a basis that, as allowed under SFAS No. 131, "Disclosures about Segments of an Enterprise and Related Information," differs from GAAP. We refer to management's basis of evaluating our segment results as "Core Earnings" presentations for each business segment and we refer to this information in our presentations with credit rating agencies and lenders. While "Core Earnings" are not a substitute for reported results under GAAP, we rely on "Core Earnings" to manage each operating segment because we believe these measures provide additional information regarding the operational and performance indicators that are most closely assessed by management.

Our "Core Earnings" are the primary financial performance measures used by management to evaluate performance and to allocate resources. Accordingly, financial information is reported to management on a "Core Earnings" basis by reportable segment, as these are the measures used regularly by our chief operating decision maker. Our "Core Earnings" are used in developing our financial plans and tracking results, and also in establishing corporate performance targets and determining incentive compensation. Management believes this information provides additional insight into the financial performance of the Company's core business activities. Our "Core Earnings" are not defined terms within GAAP and may not be comparable to similarly titled measures reported by other companies. "Core Earnings" reflect only current period adjustments to GAAP as described below. Accordingly, the Company's "Core Earnings" presentation does not represent another comprehensive basis of accounting. A more detailed discussion of the differences between GAAP and "Core Earnings" follows.

Limitations of "Core Earnings"

While GAAP provides a uniform, comprehensive basis of accounting, for the reasons described above, management believes that "Core Earnings" are an important additional tool for providing a more complete understanding of the Company's results of operations. Nevertheless, "Core Earnings" are subject to certain general and specific limitations that investors should carefully consider. For example, as stated above, unlike financial accounting, there is no comprehensive, authoritative guidance for management reporting. Our "Core Earnings" are not defined terms within GAAP and may not be comparable to similarly titled measures reported by other companies. Unlike GAAP, "Core Earnings" reflect only current period adjustments to GAAP. Accordingly, the Company's "Core Earnings" presentation does not represent a comprehensive basis of accounting. Investors, therefore, may not compare our Company's performance with that of other financial services companies based upon "Core Earnings." "Core Earnings" results are only meant to supplement GAAP results by providing additional information regarding the operational and performance indicators that are most closely used by management, the Company's board of directors, rating agencies and lenders to assess performance.

Other limitations arise from the specific adjustments that management makes to GAAP results to derive "Core Earnings" results. For example, in reversing the unrealized gains and losses that result from SFAS No. 133, "Accounting for Derivative Instruments and Hedging Activities," on derivatives that do not qualify for "hedge treatment," as well as on derivatives that do qualify but are in part ineffective because they are not perfect hedges, we focus on the long-term economic effectiveness of those instruments relative to the underlying hedged item and isolate the effects of interest rate volatility, changing credit spreads and changes in our stock price on the fair value of such instruments during the period. Under GAAP, the effects of these factors on the fair value of the derivative instruments (but not on the underlying hedged item) tend to show more volatility in the short term. While our presentation of our results on a Managed Basis provides important information regarding the performance of our Managed portfolio, a limitation of this presentation is that we are presenting the ongoing spread income on loans that have been sold to a trust managed by us. While we believe that our Managed Basis presentation presents the economic substance of our Managed loan portfolio, it understates earnings volatility from securitization gains. Our "Core Earnings" results exclude certain Floor Income, which is real cash income, from our reported results and therefore may understate earnings in certain periods. Management's financial planning and valuation of operating results, however, does not take into account Floor Income because of its inherent uncertainty, except when it is economically hedged through Floor Income Contracts.

Pre-Tax Differences between "Core Earnings" and GAAP

Our "Core Earnings" are the primary financial performance measures used by management to evaluate performance and to allocate resources. Accordingly, financial information is reported to management on a "Core Earnings" basis by reportable segment, as these are the measures used regularly by our chief operating decision maker. Our "Core Earnings" are used in developing our financial plans and tracking results, and also in establishing corporate performance targets and determining incentive compensation. Management believes this information provides additional insight into the financial performance of the Company's core business activities. "Core Earnings" reflect only current period adjustments to GAAP, as described in the more detailed discussion of the differences between GAAP and "Core Earnings" that follows, which includes further detail on each specific adjustment required to reconcile our "Core Earnings" segment presentation to our GAAP earnings.

1) Securitization Accounting: Under GAAP, certain securitization transactions in our Lending operating segment are accounted for as sales of assets. Under "Core Earnings" for the Lending operating segment, we present all securitization transactions on a Managed Basis as long-term non-recourse financings. The upfront "gains" on sale from securitization transactions as well as ongoing "servicing and securitization revenue" presented in accordance with GAAP are excluded from "Core Earnings" and are replaced by the interest income, provisions for loan losses, and interest expense as they are earned or incurred on the securitization loans. We also exclude transactions with our off-balance sheet trusts from "Core Earnings" as they are considered intercompany transactions on a Managed Basis.

2) Derivative Accounting: "Core Earnings" exclude periodic unrealized gains and losses arising primarily in our Lending business segment, and to a lesser degree in our Corporate and Other business segment, that are caused primarily by the one-sided mark-to-market derivative valuations prescribed by SFAS No. 133 on derivatives that do not qualify for "hedge treatment" under GAAP. Under "Core Earnings," we recognize the economic effect of these hedges, which generally results in any cash paid or received being recognized ratably as an expense or revenue over the hedged item's life. "Core Earnings" also exclude the gain or loss on equity forward contracts that under SFAS No. 133 are required to be accounted for as derivatives and marked-to-market through earnings.

3) Floor Income: The timing and amount (if any) of Floor Income earned in our Lending operating segment is uncertain and in excess of expected spreads. Therefore, we exclude such income from "Core Earnings" when it is not economically hedged. We employ derivatives, primarily Floor Income Contracts and futures, to economically hedge Floor Income. As discussed above in "Derivative Accounting," these derivatives do not qualify as effective accounting hedges, and therefore, under GAAP, they are marked-to-market through the "gains (losses) on derivative and hedging activities, net" line on the income statement with no offsetting gain or loss recorded for the economically hedged items. For "Core Earnings," we reverse the fair value adjustments on the Floor Income Contracts and futures economically hedging Floor Income and include the amortization of net premiums received (net of Eurodollar futures contracts' realized gains or losses) in income.

4) Acquired Intangibles: We exclude goodwill and intangible impairment and the amortization of acquired intangibles.

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