Meta's Muse Hits No. 1, Carrying AMD Into the $1-Trillion Club

Stock Market Today, Sept. 21: Tech Strength Powers Nasdaq to Record Close

The Nasdaq hit a record close on September 21, 2026, gaining 2.26% to 27,122, driven by semiconductor strength and AI optimism. The S&P 500 rose 1.49% to 7,765 while the Dow gained 0.71% to 52,049. Advanced Micro Devices jumped nearly 10% and Meta Platforms soared over 11% following strong AI developments. Bitcoin surged above $87,000 for the first time since January. However, Morgan Stanley warned that further market turbulence could occur if energy prices rise and Treasury yields remain elevated.

Shares of semiconductor companies are trading higher amid overall market strength and easing inflation concerns as investors return to AI-related companies.

Nasdaq 100 Rallies, Intel Soars 14%: Stock Market Today

A fourth straight decline in crude oil handed Wall Street a fresh leg higher Monday, with the Nasdaq 100 jumping to a three-month high as semiconductors led the tape. Intel surged nearly 14% on SK Hynix foundry optimism while AMD crossed the $1 trillion mark. Energy was the lone sector in the red as WTI slid more than 5% to an 11-day low

Tech Stocks Break Out: The Next Leg of the Bull Market

After four and a half months of consolidation, technology stocks are breaking out to the upside, led by semiconductor and AI-related companies. Despite concerns about AI safety and higher interest rates, the underlying economics of AI infrastructure investment remain strong, with demand for computing power continuing to expand beyond GPUs to CPUs, memory, and networking equipment. Bitcoin's rally signals returning risk appetite among investors.

Better Artificial Intelligence Stock: Arm Holdings vs. NVIDIA

The article compares Arm Holdings and NVIDIA as AI investment options. Arm powers 99% of smartphones with 22.8% revenue growth and strong financials, while NVIDIA dominates AI infrastructure with $215.9 billion in revenue and 55.6% net margins. Despite Arm's solid fundamentals, the author recommends NVIDIA due to its superior valuation (24.5x Forward P/E vs. 125x), stronger leadership under CEO Jensen Huang, and greater upside potential in emerging areas like quantum computing.

Intel Shares Rise Over 5% After Key Trading Signal

A key trading signal flashed for Intel shares at a price of $118.14, after which INTC rose over 5% to an intraday high.