<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997             DEC-31-1996
<PERIOD-START>                             JAN-01-1998             JAN-01-1997             JAN-01-1996
<PERIOD-END>                               MAR-31-1998             MAR-31-1997             MAR-31-1996
<CASH>                                          71,948                  29,093                  34,946
<INT-BEARING-DEPOSITS>                         118,249                  88,670                   6,703
<FED-FUNDS-SOLD>                                     0                       0                       0
<TRADING-ASSETS>                                40,498                  23,734                       0
<INVESTMENTS-HELD-FOR-SALE>                    119,718                  24,180                   5,963
<INVESTMENTS-CARRYING>                               0                       0                       0
<INVESTMENTS-MARKET>                                 0                       0                       0
<LOANS>                                      1,586,365               1,736,779               1,720,117
<ALLOWANCE>                                     35,120                  23,310                  13,336
<TOTAL-ASSETS>                               2,195,502               2,096,241               1,944,414
<DEPOSITS>                                   1,280,062               1,161,357               1,023,906
<SHORT-TERM>                                   172,713                 384,402                 650,032
<LIABILITIES-OTHER>                            118,928                  83,059                  79,418
<LONG-TERM>                                    289,824                 219,782                  88,129
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                       144,170                 146,767                  78,110
<OTHER-SE>                                     187,798                  96,014                  21,609
<TOTAL-LIABILITIES-AND-EQUITY>               2,195,502               2,096,241               1,944,414
<INTEREST-LOAN>                                 45,536                  42,930                  45,194
<INTEREST-INVEST>                                4,972                   5,625                   2,185
<INTEREST-OTHER>                                 3,132                     657                   2,141
<INTEREST-TOTAL>                                53,640                  49,212                  49,520
<INTEREST-DEPOSIT>                              18,287                  17,002                  15,078
<INTEREST-EXPENSE>                              27,594                  28,404                  36,783
<INTEREST-INCOME-NET>                           26,046                  20,808                  12,737
<LOAN-LOSSES>                                    3,850                   2,870                   1,500
<SECURITIES-GAINS>                                   0                       0                       0
<EXPENSE-OTHER>                                 27,613                  21,287                  28,708
<INCOME-PRETAX>                                 20,816                  19,161                  17,057
<INCOME-PRE-EXTRAORDINARY>                      12,900                  11,032                   8,616
<EXTRAORDINARY>                                      0                 (3,995)                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                    12,900                   7,037                   8,616
<EPS-PRIMARY>                                      .33                     .18                     .27
<EPS-DILUTED>                                      .32                     .17                     .24
<YIELD-ACTUAL>                                       0                    4.28                    3.68
<LOANS-NON>                                     67,904                  51,617                  37,181
<LOANS-PAST>                                         0                       0                       0
<LOANS-TROUBLED>                                     0                     800                   1,323
<LOANS-PROBLEM>                                      0                       0                       0
<ALLOWANCE-OPEN>                                38,047                  19,999                  13,729
<CHARGE-OFFS>                                    7,590                   2,022                   1,921
<RECOVERIES>                                       813                     286                      28
<ALLOWANCE-CLOSE>                               35,120                  23,310                  13,336
<ALLOWANCE-DOMESTIC>                            35,120                  23,310                  13,336
<ALLOWANCE-FOREIGN>                                  0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0<F1>
<FN>
<F1>*Restate March 31, 1997 and 1996 Financial Data Schedule per FAS 128.
</FN>
        

</TABLE>