Remind, so as not to be trapped.
There is resistance at 2440 and 2470, and it is a small probability event to lose money by opening a short position.
Opening a long position at 20, a 20-point pullback is not stable (although the 20-point resistance pressure is a bit fierce at present).
In the previous structure, 2440 went to 2389. The strength of 50 points.
The safest way is to open a long position at 2400 and 2390. Which support to open a long position depends on the situation. Although I think the main rise in the next period, it is okay to open a long position without loss. However, there will be mistakes in judgment. Don't be trapped if you can.
The trend currently recognized is just the beginning, and it needs to go out a part to be fully confirmed. So the left side trading is the main thing.
For support and resistance, you can find a square teacher to see it, and you can just copy it if you are too lazy.
