What is SPX and SPY?

Related questions

1. Does the S&P 500 include Nasdaq stocks?
2. Can I invest in Dow?
3. How do short ETFs work?
4. Is Spy cash settled?
5. How do you leverage stock?
6. What are holdings in stocks?

Tags

1. #trading
2. #exercised
3. #expire
4. #close
5. #after
6. #complicated
7. #european
8. #options
9. #before
10. #trader
11. #american
12. #expiration
13. #style
14. #friday
15. #business
16. #cease