What is the difference between option on stock index and option on a stock index future?

Question by Joe Joseph: What is the difference between option on stock index and option on a stock index future?
I understand what an option is. But what is the difference between option on the stock index and option on the stock index futures?


Best answer:
Answer by deepblue_111It's a useful website for beginners, I suggest you to bookmark it.

http://www.investopedia.com/articles/optioninvestor/02/061302.asp

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