<TABLE> <S> <C>

<PAGE>

<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNAUDITED
INTERIM FINANCIAL STATEMENTS AS OF AND FOR THE SIX MONTHS ENDED DECEMBER 31,
1999 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-2000
<PERIOD-START>                             JUL-01-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                         200,958
<INT-BEARING-DEPOSITS>                               0
<FED-FUNDS-SOLD>                                19,988
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                    526,514
<INVESTMENTS-CARRYING>                       1,859,824
<INVESTMENTS-MARKET>                         1,817,184
<LOANS>                                      9,850,446
<ALLOWANCE>                                     79,536
<TOTAL-ASSETS>                              13,349,133
<DEPOSITS>                                   7,449,069
<SHORT-TERM>                                 1,108,626
<LIABILITIES-OTHER>                            193,978
<LONG-TERM>                                  3,619,284
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           581
<OTHER-SE>                                     977,659
<TOTAL-LIABILITIES-AND-EQUITY>              13,349,133
<INTEREST-LOAN>                                372,044
<INTEREST-INVEST>                               83,837
<INTEREST-OTHER>                                     0
<INTEREST-TOTAL>                               455,881
<INTEREST-DEPOSIT>                             160,695
<INTEREST-EXPENSE>                             281,936
<INTEREST-INCOME-NET>                          173,945
<LOAN-LOSSES>                                    6,760
<SECURITIES-GAINS>                                   0
<EXPENSE-OTHER>                                137,022
<INCOME-PRETAX>                                 84,179
<INCOME-PRE-EXTRAORDINARY>                      54,973
<EXTRAORDINARY>                                      0
<CHANGES>                                      (1,776)
<NET-INCOME>                                    53,197
<EPS-BASIC>                                        .90
<EPS-DILUTED>                                      .90
<YIELD-ACTUAL>                                    2.81
<LOANS-NON>                                     69,242
<LOANS-PAST>                                         0
<LOANS-TROUBLED>                                 5,565
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                                80,419
<CHARGE-OFFS>                                    9,668
<RECOVERIES>                                     3,049
<ALLOWANCE-CLOSE>                               79,536
<ALLOWANCE-DOMESTIC>                             5,479
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                         74,057


</TABLE>