大型股指数：普通ETF：标普500指数ETF-SPDR(SPY) 道指ETF-SPDR(DIA)反向ETF：标普500指数ETF-ProShares做空(SH) 道指ETF-ProShares做空(DOG)双倍做多：标普500指数ETF-ProShares两倍做多(SSO) 道指ETF-ProShares两倍做多(DDM)双倍做空：标普500指数ETF-ProShares两倍做空(SDS)...