The market's performance is too ugly, harvesting 150 million dollars in half an hour. Capital is once again using the US stock market to harvest the world, conducting a major cleanup. However, the trend has not stabilized; the overall direction of 80 and 16 is still downward. If it falls back below 78 1550 before noon, it may even reverse to break the low for harvesting. The current situation is complicated; please refer to it yourself for understanding. Conservative investors may hold their positions and not enter the market.