<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AT DECEMBER 31, SEPTEMBER 30, JUNE 30, AND MARCH 31,
1996 AND THE CONSOLIDATED STATEMENTS OF INCOME FOR THE TWELVE, NINE, SIX, AND
THREE MONTHS ENDED DECEMBER 31, SEPTEMBER 30, JUNE 30, AND MARCH 31, 1996 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   YEAR                   9-MOS                   6-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               DEC-31-1996             SEP-30-1996             JUN-30-1996             MAR-31-1996
<CASH>                                          10,584                  17,397                   5,942                   9,376
<SECURITIES>                                   178,636                 191,044                 203,981                 212,859
<RECEIVABLES>                                  352,103                 346,002                 333,989                 309,922
<ALLOWANCES>                                     2,341                   2,266                   2,339                   2,264
<INVENTORY>                                          0                       0                       0                       0
<CURRENT-ASSETS>                               202,634                 215,988                 227,103                 171,669
<PP&E>                                           6,397                   6,258                   6,174                   6,112
<DEPRECIATION>                                   2,816                   2,714                   2,636                   2,550
<TOTAL-ASSETS>                                 554,732                 565,385                 554,979                 542,012
<CURRENT-LIABILITIES>                          259,882                 252,827                 250,594                 242,148
<BONDS>                                              0                       0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                            61                      61                      61                      61
<OTHER-SE>                                      82,039                  83,608                  87,202                  90,818
<TOTAL-LIABILITY-AND-EQUITY>                   554,732                 565,385                 554,979                 542,012
<SALES>                                              0                       0                       0                       0
<TOTAL-REVENUES>                                41,787                  31,353                  20,926                  10,497
<CGS>                                                0                       0                       0                       0
<TOTAL-COSTS>                                   34,703                  26,382                  15,796                   7,863
<OTHER-EXPENSES>                                     0                       0                       0                       0
<LOSS-PROVISION>                                   300                     225                     150                      75
<INTEREST-EXPENSE>                                   0                       0                       0                       0
<INCOME-PRETAX>                                  6,784                   4,745                   4,980                   2,559
<INCOME-TAX>                                     2,510                   1,770                   1,860                     972
<INCOME-CONTINUING>                                  0                       0                       0                       0
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     4,274                   2,975                   3,120                   1,587
<EPS-PRIMARY>                                      .99                     .68                     .69                     .34
<EPS-DILUTED>                                      .96                     .66                     .67                     .33


</TABLE>