The 2-hour Bollinger Bands opened downward last night, touched 1920 and stopped falling, then rebounded above 1960.

Two scenarios:

1.
To see a new major bear trend, a bullish move is needed first, reaching the 2-hour upper band. If the upper band at 2020 cannot be突破 and turns downward again, with the 2-hour band opening downward and breaking below 1880, a major decline will be confirmed.

2.
The 4-hour Bollinger Bands are tightening, and a directional choice is likely imminent. A large upward move of 300-500 points cannot be ruled out.

In summary, for the two scenarios, currently buying in the 1940-1970 range with a take profit at 2020 is advisable. Only if the price breaks above 2020 can we look for higher targets. Be cautious with short positions.