<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997
<PERIOD-START>                             JAN-01-1998             JAN-01-1997
<PERIOD-END>                               SEP-30-1998             DEC-31-1997
<CASH>                                       6,442,955               4,322,701
<INT-BEARING-DEPOSITS>                               0                       0
<FED-FUNDS-SOLD>                                     0                       0
<TRADING-ASSETS>                            22,379,515              16,288,058
<INVESTMENTS-HELD-FOR-SALE>                862,693,255             651,080,189
<INVESTMENTS-CARRYING>                               0                       0
<INVESTMENTS-MARKET>                                 0                       0
<LOANS>                                              0                       0
<ALLOWANCE>                                          0                       0
<TOTAL-ASSETS>                             961,739,481             737,805,202
<DEPOSITS>                                     594,158                 426,150
<SHORT-TERM>                                         0                       0
<LIABILITIES-OTHER>                        824,451,584             661,603,962
<LONG-TERM>                                 14,496,469              11,337,710
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                    92,153,243                   1,000
<OTHER-SE>                                  29,600,566              66,411,654
<TOTAL-LIABILITIES-AND-EQUITY>             961,739,481             737,805,202
<INTEREST-LOAN>                                      0                       0
<INTEREST-INVEST>                                    0                       0
<INTEREST-OTHER>                                     0                       0
<INTEREST-TOTAL>                                     0                       0
<INTEREST-DEPOSIT>                                   0                       0
<INTEREST-EXPENSE>                                   0                       0
<INTEREST-INCOME-NET>                       18,377,574              12,524,096
<LOAN-LOSSES>                                4,473,835               3,587,806
<SECURITIES-GAINS>                                   0                       0
<EXPENSE-OTHER>                                      0                       0
<INCOME-PRETAX>                             46,093,392              38,622,337
<INCOME-PRE-EXTRAORDINARY>                           0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 6,292,181              37,268,413
<EPS-PRIMARY>                                        0                       0
<EPS-DILUTED>                                        0                       0
<YIELD-ACTUAL>                                       0                       0
<LOANS-NON>                                          0                       0
<LOANS-PAST>                                         0                       0
<LOANS-TROUBLED>                                     0                       0
<LOANS-PROBLEM>                                      0                       0
<ALLOWANCE-OPEN>                                     0                       0
<CHARGE-OFFS>                                        0                       0
<RECOVERIES>                                         0                       0
<ALLOWANCE-CLOSE>                                    0                       0
<ALLOWANCE-DOMESTIC>                                 0                       0
<ALLOWANCE-FOREIGN>                                  0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0
        

</TABLE>