Stock Market Today: U.S. stock market movements were mixed as Dow Jones and S&P 500 held steady, while the Nasdaq slipped due to tech stock pressure. Nvidia (NVDA), AMD, and Broadcom (AVGO) declined amid concerns over tighter semiconductor export restrictions to China. Meanwhile, Bitcoin fell below $90,000 for the first time since November, affecting stocks like Coinbase (COIN) and MicroStrategy (MSTR). Investors are also watching Nvidia’s Q4 earnings report, which could impact the broader tech sector. Market volatility continues as trade tensions, regulatory risks, and crypto uncertainty shape investment trends.