I was doing a mock exam, which used the following formula to calculate the compensation expense relative to stock options:
Compensation expense=(number of options granted)*(option price)*(time from grant date to fiscal year end)/(service period in years)
Everything makes sense to me in the formula above, except the (time from grant date to fiscal year end). If a stock option is issued mid-year, I understand that for that specific year, the expense would only over half year, and so you would have to adjust for this. However the formula above implies that if you issue a stock option mid-year, with a service period of 5 years, you would multiply everything by 1/2. Why should this be the case?
Compensation expense=(number of options granted)*(option price)*(time from grant date to fiscal year end)/(service period in years)
Everything makes sense to me in the formula above, except the (time from grant date to fiscal year end). If a stock option is issued mid-year, I understand that for that specific year, the expense would only over half year, and so you would have to adjust for this. However the formula above implies that if you issue a stock option mid-year, with a service period of 5 years, you would multiply everything by 1/2. Why should this be the case?