CONCURRENT COMPUTER CORPORATION EXHIBIT 11 BASIC AND DILUTED EARNINGS (LOSS) PER SHARE COMPUTATION THREE MONTHS ENDED SIX MONTHS ENDED DECEMBER 31, DECEMBER 31, 2000 1999 2000 1999 --------------- --------------- --------------- ------------- BASIC/DILUTED BASIC/DILUTED BASIC/DILUTED BASIC/DILUTED --------------- --------------- --------------- ------------- Average outstanding shares: 54,675 51,560 54,332 50,262 Dilutive options outstanding - - - - Equivalent Shares 54,675 51,560 54,332 50,262 =============== =============== =============== ============= Net income (loss) available to common stockholders $ (3,927) $ (16,621) $ (5,490) $ (19,172) =============== =============== =============== ============= Earnings (loss) per share $ (0.07) $ (0.32) $ (0.10) $ (0.38) =============== =============== =============== ============= -20-