Stock index futures IF, where IF is the abbreviation of futures contract, IF refers to futures with the Shanghai and Shenzhen 300 Index as the contract target, and 03 refers to the delivery month of futures contract, which refers to March 2008. At present, there are four contracts in the Shanghai and Shenzhen 300 futures trading, which are the current month, the next month and the next two quarters, so the currently traded IF1,IF 12, IF03 and IF06 represent 20071and 2007 65438 respectively.