U.S.-listed Chinese companies traded mostly lower on Wednesday, with eight of the top 10 stocks by weight in the S&P U.S. Listed China 50 index ending the day on a downbeat note.

Shares of JD.com and shares of NetEase, fell 2.00 percent and 1.43 percent respectively, leading the laggards in the top 10 stocks of the index, while shares of Yum China Holdings rose 2.36 percent as the biggest advancer among the 10 stocks.

At Wednesday's close, shares of Alibaba and shares of Baidu, another two Chinese famous tech giants listed in the U.S. equity market, dipped 0.01 percent and 0.17 percent, respectively.

U.S. stocks closed higher on Wednesday as investors digested the newly-released Federal Reserve Beige Book as well as a batch of economic reports.

At the close, the Dow Jones Industrial Average increased 306.33 points, or 1.26 percent, to 24,667.78. The S&P 500 increased 34.15 points, or 1.27 percent, to 2,724.01. The Nasdaq Composite Index rose 65.86 points, or 0.89 percent, to 7,462.45.

The Cboe Volatility index, widely considered the best fear gauge in the stock market, dropped 12.22 percent to 14.94 on Wednesday.

As of Tuesday, the S&P U.S. Listed China 50 index stood at 3,180.15, marking a 3.87-percent gain for the month-to-date returns and a 2.88-percent increase for the year-to-date returns.