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,,一方面不知情交在与知情交交时就会遭受损失;另一方面投机和套利在ETF套利时也往往不能获得利润,甚至可能发生亏损。