We can open long positions at the bottom and short positions at the top, relying on our judgment of the structural preparation.

Last time when it was still rising, we mentioned that there wasn't much room for growth, and started to position high-level short orders. At the end of last month, we positioned long orders near the bottom at 108600, making about 17,000 to 18,000 points.
Since the night before last, I have been talking about structural reversals and restarting long positions, and there have already been three opportunities to enter long.
Still missed it, can only build positions in batches, just need to buy more on any slight pullback, using light positions, and if it drops further, then add to the positions.
It is still uncertain whether the 5th wave has started, so the high position Short has not been closed yet.