<PAGE>
Exhibit 11.0
Roslyn Bancorp, Inc.
Statement Re: Computation of Per Share Earnings
(In thousands, except share and per share amounts)
<TABLE>
<CAPTION>
For the For the
Three Months Ended Three Months Ended
September 30, 2000 September 30, 1999
-------------------------- --------------------------
<S> <C> <C>
Net income $ 17,275 $ 27,591
-------------------------- --------------------------
Weighted average common shares outstanding 61,216,380 73,293,701
-------------------------- --------------------------
Basic earnings per common share $ 0.28 $ 0.38
========================== ==========================
Weighted average common shares outstanding 61,216,380 73,293,701
Potential common stock due to dilutive effect of
stock options 770,932 1,123,256
-------------------------- --------------------------
Total shares for diluted earnings per share 61,987,312 74,416,957
========================== ==========================
Diluted earnings per common share $ 0.28 $ 0.37
========================== ==========================
</TABLE>
<TABLE>
<CAPTION>
For the For the
Nine Months Ended Nine Months Ended
September 30, 2000 September 30, 1999
-------------------------- --------------------------
<S> <C> <C>
Net income/(loss) $ 65,801 $ (6,833)
-------------------------- --------------------------
Weighted average common shares outstanding 63,877,840 72,887,331
-------------------------- --------------------------
Basic earnings/(loss) per common share $ 1.03 $ (0.09)
========================== ==========================
Weighted average common shares outstanding 63,877,840 72,887,331
Potential common stock due to dilutive effect of
stock options 720,470 1,136,857
-------------------------- --------------------------
Total shares for diluted earnings/(loss) per share 64,598,310 74,024,188
========================== ==========================
Diluted earnings/(loss) per common share $ 1.02 $ (0.09)
========================== ==========================
</TABLE>