Comparison Calculator: S&P 500 (SPX®) and Mini-SPX (XSP℠) Index Options S&P 500 Level as of: 11 Dec 2024 13:11:19 S&P 500 Number of Options Contracts Enter number ofSPX contracts SPX = XSP The Mini-SPX Index is based on 1/10th the value of the Standard and Poor’s 500 Index...