[US Stocks Open Mixed, Tech Stocks Weaken on Regulatory Concerns] US stocks opened mixed, with the Dow Jones Industrial Average up 0.56%, the S&P 500 down 0.13%, and the Nasdaq Composite down 0.8%. Market concerns about the US "blue wave" driving stricter regulations on AI and data centers led to a decline in tech stocks. Qualcomm (QCOM.O) fell 13%, AMD (AMD.O) fell 7%, Micron Technology (MU.O) fell 4.9%, Tesla (TSLA.O) fell 3.5%, and SpaceX (SPCX.O) fell 4%. The Nasdaq China Golden Dragon Index rose 2.5%.