Song Guoliang for Everbright Securities“Oolong finger”Add your opinion on the event. He said that in order to fundamentally solve the Oolong incident, we must also solve the problems of the risk management mechanism and internal control mechanism of securities companies. "T+0”Judging from past experience, it has a great impact on the stock market. In a sense, its impact even exceeds the adjustment of stamp duty. Its sensitivity factor is very high, but only for the short term.