As U.S. investors head into a crucial Federal Reserve week, trading activity is clustering around a familiar set of mega-cap tech names, AI chipmakers, streaming giants and high‑beta fintech stocks. Real‑time “most active stocks today” lists for U.S. markets show Nvidia, Tesla, Meta Platforms, Netflix, Warner Bros. Discovery, Apple, Microsoft, Broadcom, Amazon, Advanced Micro Devices, SoFi, Micron, Intel, Oracle, Coinbase and Robinhood among the most heavily traded names by both volume and dollar value on Monday, December 8, 2025. StockAnalysis+1