Key Highlights

● Taiwan Semiconductor climbed on November 9 as chips rebounded.

● The depositary receipts opened sharply higher.

● No company-specific news explained the move.

● Nvidia slid amid an independent board review.

A strong open for the chip giant

Taiwan Semiconductor Manufacturing (NYSE:TSM) climbed on Monday, November 9, 2026, as the semiconductor sector roared back to life. The American depositary receipts opened sharply higher, and stayed in positive territory as the chip rally gathered steam. Other data providers reported a bigger gain.

No company-specific news was found to explain the move. TSMC rose with the sector as investors rushed back into AI-linked chip stocks.

A powerful chip bounce

The scale of the semiconductor rebound was striking. The PHLX Semiconductor index jumped to 10,033.93, its best day since July 30, according to market coverage. That followed a brutal Thursday, November 5, when the index plunged as part of a broader AI and tech sell-off, according to market reports.

Advanced Micro Devices (NASDAQ:AMD) rocketed after Oppenheimer upgraded it to Outperform with a $600 target, and Applied Materials (NASDAQ:AMAT), Lam Research (NASDAQ:LRCX) and Broadcom (NASDAQ:AVGO) all surged. Micron Technology (NASDAQ:MU) also climbed, according to market data.

The Nvidia exception

There was one glaring exception. Nvidia (NASDAQ:NVDA) was the only decliner in the semiconductor index, falling to its lowest close since April. The stock slid amid an independent review by Nvidia's board involving CEO Jensen Huang. The board said it has "no reason to believe" national security or company secrets were compromised, according to market coverage.

Nvidia is one of TSMC's most important customers, since TSMC manufactures many of its advanced chips. Nvidia's Quarterly Report on November 17 will therefore be watched by TSMC investors for signals about AI orders. Competition in AI chips is also broadening: Alphabet (NASDAQ:GOOGL) introduced two new TPU variants, according to market reports.

What TSMC does

TSMC is the world's largest contract chipmaker. Rather than designing its own branded processors, it manufactures chips for other companies, including many of the biggest names in AI, smartphones and personal computers. Its leading-edge factories in Taiwan produce some of the most advanced semiconductors in the world, which makes it central to the AI hardware Supply chain.

Because TSMC builds chips for so many designers, its shares often act as a barometer for overall Demand in the industry.

Market mood turned

The chip rally lifted the whole market. The Nasdaq Composite soared 673.71 points to 25,253.14, and the S&P 500 jumped 173.08 points to 7,549.94, its best day since April 8. Falling oil prices on hopes for a US-Iran peace deal eased Inflation worries.

Strategists offered different readings. A strategist said, according to market data: "we see this more as an intra-cycle reset and another deleveraging event in the AI supercycle." A strategist was more cautious, saying, that "the rebound looks more like a tentative recovery in risk appetite than a convincing Reversal of the recent downtrend."

Chip Demand Faces Fresh Tests

Key tests for the AI chip trade arrive soon. Applied Materials, Cisco (NASDAQ:CSCO), Nebius (NASDAQ:NBIS) and CoreWeave (NASDAQ:CRWV) report this week, and Nvidia's third-quarter results are due on November 17. Those reports will offer fresh clues on AI spending, which drives a large share of TSMC's advanced-chip demand.

Investors will also watch October consumer price data on Tuesday, November 10, ahead of the Federal Reserve's December 8-9 meeting, as well as US-China trade developments, which carry special weight for a company at the heart of the global chip supply chain.