Repost envy of Teacher Feng's dynamics. Shorting has been dominant recently. It still needs to be seen whether the 2400-2200 range can support. If the support doesn't hold, there is a position below 1800. If it can hold between 2200-2400, can continue to look for longs up to 3050. Personally, I think it will continue to test the 2100 mark again and break below. If you don't like it, please don't criticize.