美股中概股，集体下跌

Market Overview - The Dow Jones Industrial Average increased by 0.43% to 49,454.63, while the Nasdaq Index decreased by 0.17% to 23,215.58, and the S&P 500 rose slightly by 0.07% to 6,922.99 [1] - The Nasdaq 100 saw a decline of 0.40% to 25,238.22 [1] Major Technology Stocks - AMD experienced a significant drop of 11.00% [2] - SanDisk fell by 6.89% [2] - Oracle decreased by 3.72% [2] - Facebook (Meta Platforms) declined by 1.46% [2] - Broadcom saw a decrease of 1.16% [2] - NVIDIA and Amazon also experienced minor declines of 0.67% and 0.33% respectively [2] Chinese Concept Stocks - Major Chinese concept stocks collectively declined, with Kingsoft Cloud dropping over 5% [3] - Ctrip Group, NetEase, and Bilibili each fell by over 4% [3] - Baidu Group and Futu Holdings decreased by over 3% [3] Detailed Performance of Chinese Stocks - Kingsoft Cloud fell by 5.45% to 12.414 [4] - Ctrip Group decreased by 4.84% to 57.550 [4] - NetEase dropped by 4.20% to 122.970 [4] - Baidu Group declined by 3.60% to 139.640 [4] - Futu Holdings decreased by 3.52% to 154.155 [4] - Other notable declines include XPeng Motors (-2.10%), Tencent Music (-1.98%), and JD Group (-1.41%) [4]