Amendments E-mini and Micro E-mini Options on Standard and Poor's 500 Stock Price Index Futures Contracts to Vary the Minimum Price Increment Threshold by Price Level for Trades Executed on CME Globex

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.