NEW YORK, June 7 (Xinhua) -- U.S.-listed Chinese companies traded higher on Tuesday with all the top 10 stocks by weight in the S&P U.S. Listed China 50 index ending the day on an upbeat note.

       Shares of BeiGene and Pinduoduo soared 11.66 percent and 10.12 percent, respectively, leading the gains in the top 10 stocks in the index.

       Shares of Bilibili and Alibaba Group Holding surged 9.96 percent and 5.36 percent, also among the best performers in the top 10 stocks.

       U.S. stocks climbed on Tuesday, underpinned by overall strength in the energy sector.

       The Dow Jones Industrial Average increased 264.36 points, or 0.80 percent, to 33,180.14. The S&P 500 rose 39.25 points, or 0.95 percent, to 4,160.68. The Nasdaq Composite Index added 113.86 points, or 0.94 percent, to 12,175.23.

       The Cboe Volatility Index, widely considered as the best fear gauge in the stock market, slid 4.19 percent to 24.02.

       As of Monday, the S&P U.S. Listed China 50 index, which is designed to track the performance of the 50 largest Chinese companies listed on U.S. exchanges by total market cap, stood at 2,569.71, marking a 4.75-percent gain for the month-to-date returns and a 13.72-percent loss for the year-to-date returns.