If the price efficiency underlying index after the listing of 50ETF isn’t improved, liquidity traders will sustain losses with information traders, speculator and arbitrager can’t profit.
如果50ETF上市后上证50指数市场的定价效率没有提高,那么,一方面不知情易在与知情易易时就会遭受失;另一方面投套利在ETF套利时也往往不能获得利润,甚至可能发生亏。