It's important that anyone selling puts understands that they may be assigned 100 shares at the strike price. For Apple stock, a trader selling the Oct. 31 put with a strike price of 260 will generate around $190 in premium per contract. The put has a delta of 24, which means there is an estimated 76% chance that it will expire worthless. BREAKING: Stocks Rumble Higher As PayPal, UnitedHealth Rally Apple (AAPL) stock is set to report earnings on Thursday after the closing bell and the options market is pric ...