According to TechFlow, the U.S. stock market was closed on January 9 to commemorate the death of the 39th President Jimmy Carter, and resumed normal trading on January 10.
CME Group's stock index futures trading ended early at 22:30 ET on the 10th; interest rate and agricultural futures trading ended early at 02:15 ET on the 10th; Treasury bond futures trading ended early at 03:30 ET on the 10th. Precious metals, energy, foreign exchange, and cryptocurrency futures trading continued as usual.