Experienced scalpers will take advantage of the high opening and low closing characteristics of the stock market to make money in the US and A-share markets within half an hour of opening. The cryptocurrency industry now perfectly inherits the US stock market and needs to learn this new knowledge point, Reason: Why does the stock market always move in the opposite direction before and after the opening? This is mainly due to market makers and liquidity manipulation. If the market does not move in the opposite direction before the opening, the stock price will experience huge fluctuations. At the same time, the low liquidity before the opening will be impacted by the surge in liquidity after the opening, leading to a reversal