A large number of commodities in Dalian and Zhengzhou, such as PTA09, Lian Brown 09, Zhengzhou Caizi 09, Lian Soybean Oil and Zhengzhou Shanghai Fuel Oil 08, represent these main contracts. The transaction volume is relatively large and relatively continuous. Refers to the contract that expires in September 2009. It's not market chaos. Now futures are not suitable for all indicators. Now all the indicators of futures are lagging behind. When the market is basically exhausted,