1 EXHIBIT 11 The Geon Company Primary Earnings Per Share (In millions, except per share data) Three Months Ended Six Months Ended June 30, June 30, ------------------ ------------------ 1997 1996 1997 1996 ------ ------ ------ ------ PRIMARY EARNINGS PER COMMON SHARE: Number of Shares: - ----------------- Average shares of common stock outstanding 23.4 24.7 23.4 24.7 Net effect of dilutive stock options - based on treasury stock method using average market price .2 .5 .2 .5 ------ ------ ------ ------ Total common and common equivalent shares outstanding 23.6 25.2 23.6 25.2 ====== ====== ====== ====== Net income per share of common stock $ .26 $ .40 $ .36 $ .18 ====== ====== ====== ====== The unaudited earnings per share for all periods presented were computed based on the weighted average number of shares of common stock outstanding and common stock equivalents. While the market price of common stock as of June 30, 1997 was above the average for the six months ended June 30, 1997, the dilutive impact was immaterial.