U.S. stock market activity | Hot Chinese concept stocks are strengthening, with Niu Technologies (NIU.US) rising more than 6%.

According to the Securities Times APP, on Wednesday, popular Chinese concept stocks strengthened during trading, with the Nasdaq Golden Dragon China Index rising by 2%. Baidu (BIDU.US) and Niu Electric (NIU.US) rose by over 6%, while Global Data Solutions (GDS.US) rose by nearly 4%. Pinduoduo (PDD.US) and New Oriental Education (EDU.US) rose by 3%.