2021-09-20,18:00,2 MarketID,ListID,SegmentID,InstrumentID,OrderBookID,Event,PreviousTIShortName,NewTIShortName,FirstTradeDate,LastTradeDate,Expired Date,ReferencePrice,PriceQuotationFactor,ContractSize,StrikePrice,OptionsType,OptionsStyle,PhysicalDelivery TXI,IO,S50IO,SET50_OPT,70805,0,,S50X21C850,2021-09-20,2021-11-29,2021-11-29,107.800000,200,200,850.000000,1,2,2 TXI,IO,S50IO,SET50_OPT,70806,0,,S50X21P850,2021-09-20,2021-11-29,2021-11-29,0.200000,200,200,850.000000,2,2,2