[U.S. Stock Market Rebound Stalls, Nvidia's Stock Price Drops Due to SoftBank's Sell-Off] The rebound in the U.S. stock market has stalled due to declines in large-cap AI-related stocks and weak labor market data. The S&P 500 Index opened 0.2% lower, with the technology and communication services sectors leading the decline. Nvidia's stock price fell as SoftBank sold all its shares, cashing out $5.83 billion. Citi Research data shows that investors added $3.75 billion in new short positions on Nasdaq over the past week. ADP data indicates that, as of October 25, U.S. private sector employment positions decreased by an average of 11,250 per week over the past four weeks.