. cash received from option exercises during fiscal year 2018 was $ 76.2 . the total tax benefit realized from stock option exercises in fiscal year 2018 was $ 25.8 , of which $ 19.0 was the excess tax benefit . restricted stock the grant-date fair value of restricted stock is estimated on the date of grant based on the closing price of the stock , and compensation cost is generally amortized to expense on a straight-line basis over the vesting period during which employees perform related services