Stock grants. This is expensed over the vesting period
Stock Options. Expensed over the vesting period, and can change with values of the options? similar to pensions
This is question 42 in morning mock
Options have different value with volatility. Outright stock grant is just the price of stock.
Preferred option valuation model is black-scholes so assume all variables from black scholes could affect valuation of stock options.