EXHIBIT 11 HEMACARE CORPORATION NET INCOME PER COMMON AND COMMON EQUIVALENT SHARE Three Months Ended Nine Months Ended September 30, September 30, 1999 1998 1999 1998 ------------ ------------ ------------ ---------- BASIC Weighted average common shares used to compute basic earnings per share................................... 7,437,582 7,281,120 7,359,351 7,194,113 ========== ========== ========== ========== Net income.................................... $ 267,000 $ 257,000 $ 715,000 $ 325,000 ========== ========== ========== ========== Basic net income per share............................. $ 0.04 $ 0.04 $ 0.10 $ 0.05 ========== ========== ========== ========== DILUTED Weighted average common shares used to compute basic earnings per share............................. 7,437,582 7,281,120 7,359,351 7,194,113 Dilutive preferred equivalent shares................... 500,000 - 500,000 - Dilutive common equivalent shares attributable to stock options (based on average market price)......... 396,457 - 153,644 269 Dilutive common equivalent shares attributable to warrants (based on average market price).............. 29,493 - 5,395 - ---------- ---------- ---------- ---------- Weighted average common shares and equivalents used to compute diluted earnings per share................. 8,363,532 7,281,120 8,018,390 7,194,382 ========== ========== ========== ========== Net income.................................... $ 267,000 $ 257,000 $ 715,000 $ 325,000 =========== =========== ========== ========== Dilutive net income per share.......................... $ 0.03 $ 0.04 $ 0.09 $ 0.05 ========== =========== ========== ==========