ChainCatcher news, according to Jinshi reports, the Dow Jones index closed up 227.79 points on December 22 (Monday), an increase of 0.47%, closing at 48,362.68 points; the S&P 500 index closed up 43.99 points, an increase of 0.64%, closing at 6,878.49 points; the Nasdaq Composite index closed up 121.21 points, an increase of 0.52%, closing at 23,428.83 points.