This morning, it was mentioned that the probability of a Monday pullback in the past half year (U.S. market) was much higher than the probability of an increase.

But it seems that a low-probability event has occurred, and today's Monday conclusion is a rise.
Some say that the Federal Reserve has started to loosen monetary policy due to liquidity pressure in the private credit market; this is just speculation without concrete evidence.
The decline caused by the Iran war has been completely wiped out, and the market has hit new highs.