The stock market in April showed a tendency of "plummeting first, then surging", as the market confidence gradually recovered under the stimulation of two major favorable factors - restricting the trading of large and medium-sized non-tradable shares and reducing the stamp duty. This also made investors look forward to the market in May. Then, how long will the favorable policies continue? Will public offering funds turn around to go long after large-scale delivery? Will speculative capital doing short-term trading frequently in blue chip stocks intensify future stock market turbulence?