After reducing the use of 73 points, the soft board concealed the order, the starters sold stocks on January 28, 2021. - I also sold the portfolio but received reliable errors and had to sell first or wait for the version to recover the next day to sell at a loss of VND 250 million - The next day's strategy is to buy stock exchanges to reverse in version, however the evening knowledge incident on 28/01/2021 Downjonte increased - The next morning resolved the state of no - Cannot buy the old Coupon at the floor price to reverse the goods during the trading day - Time chart appeared, analyzing signal and recovering stocks