Wenhua Commodity Index tracks the comprehensive price performance of 28 domestic listed commodities, covering the futures varieties in the market comprehensively. Straight flush is an index product weighted according to the operation data of the whole market of commodity futures. It aims to reflect the overall situation of commodity futures market, so that futures users can know the ups and downs of the market, the inflow and outflow of funds, the current market fever and so on through the straight flush commodity index.