Cash Settlement: The process by which the terms of an option contract are fulfilled through the payment or receipt in dollars of the amount by which the option is in-the-money as opposed to delivering or receiving the underlying stock.

Cash Settlement Amount: The difference between the exercise price of the option being exercised and the exercise settlement value of the index on the day the index option is exercised.

Exercise Settlement Amount: The difference between the exercise price of the option and the exercise settlement value of the index on the day an exercise notice is tendered, multiplied by the index multiplier.

Settlement Price: The official price at the end of a trading session. This price is established by The Options Clearing Corporation and is used to determine changes in account equity, margin requirements, and for other purposes.