EXHIBIT 11 Flagstar Bancorp, Inc. Computation of Net Earnings per Share Net earnings per share - basic and net earnings per share - diluted are computed by dividing this amount by the weighted average number of common stock and common stock equivalents outstanding during the period, respectively. For the three months For the six months ended June 30, ended June 30, ----------------------- ----------------------- 2005 2004 2005 2004 --------- --------- --------- --------- Net Earnings $ 27,800 $ 41,190 $ 47,578 $ 78,147 Average common shares outstanding 62,078 60,889 61,770 60,814 Net earnings per share - basic $ 0.45 $ 0.68 $ 0.77 $ 1.29 Average common share equivalents outstanding 64,265 64,055 64,083 64,145 Net earnings per share - diluted $ 0.43 $ 0.65 $ 0.74 $ 1.22