Every Friday at 5 pm, there will be a round of cyclical options contracts for delivery, which is one of the reasons why Friday is prone to greater volatility.

The pin does not mean that the final trend is affected by the change, and the upper pin did not break the key point.

So this round will continue to look down to 3280, but the specific pressure is around 3450. If it cannot stabilize in the first half of the night, it will be a downward trend.

It is very simple to run ahead of time. At present, any position above 3420 is a second entry opportunity.