Semiconductor stocks: $1.3T wipeout hits Wall St 2026

What triggered the semiconductor selloff

Semiconductor stocks suffered a steep, fast selloff as markets tried to price a mix of sector-specific disappointment and broader macro shocks. US-traded chipmakers collectively shed about US$1.3 trillion in market value in the drop. The initial spark was Broadcom’s softer-than-hoped commentary around near-term AI chip sales, which hit sentiment in a trade that had become crowded. As the selling spread, it became less about one company’s guidance and more about how fragile expectations had become across the AI supply chain.

The drawdown did not come with evidence that chip demand has collapsed. Instead, the move highlighted how quickly high-valuation, high-ownership themes can reprice when confidence is challenged. Even as several companies continued to post strong projections and earnings beats, investors reacted to the idea that the pace of positive surprises might be slowing.

The scale of Friday’s move across the sector

Friday was described as a difficult session for semiconductor stocks, with losses concentrated in the biggest AI-linked names and spilling into the broader tech complex. The Philadelphia Semiconductor Index (SOX) fell about 10.3%, one of its worst one-day declines on record and its largest since March 2020. Deutsche Bank’s Jim Reid noted it was the index’s worst day since March 2020 and the fourth-worst since data began in 1994.

The selloff also hit broad market benchmarks, underlining that this was not a narrow, single-stock reaction. The Nasdaq Composite dropped more than 4% and was cited at a 4.18% fall to 25,709.43, its steepest decline since April 2025. The S&P 500 fell 2.64% to 7,383.74, and the week’s losses were heavily concentrated on the jobs-report day.

Key stock moves that defined the rout

Large single-day drops in several major chipmakers amplified the sense that investors were quickly de-risking. Marvell declined about 17% in the session, while Micron fell around 13%. Intel and Advanced Micro Devices each dropped close to 11% in the move, and Nvidia fell about 6%.

Even Nvidia’s smaller percentage decline was meaningful because of its size in the index and the broader AI narrative. The report noted that Nvidia’s fall still pushed the world’s most valuable company back below the US$1 trillion mark. The intensity of the selling reinforced that positioning and expectations were central to the move, not just company-by-company fundamentals.

Broadcom’s guidance and the expectations problem

Broadcom’s guidance was a focal point because it arrived when markets were primed for upgrades. The company guided for about US$16 bn in AI chip revenue for the current quarter and kept its fiscal 2027 AI chip revenue target at US$100 bn. Those figures were not enough to excite Wall Street, and the stock fell about 13% on Thursday before extending the decline into Friday.

In total, Broadcom’s shares were described as down roughly 20% across the two days. The key issue was not that Broadcom presented weak numbers in absolute terms, but that the guidance did not raise the ceiling for expectations. In a market segment powered by the AI investment wave, a lack of upside surprise can have an outsized effect.

The May US jobs report and why yields mattered

The selloff accelerated after the May US jobs report, which showed employers added 172,000 jobs. That was nearly double the 80,000 that many economists had expected, and March and April payrolls were revised up by a combined 93,000. The unemployment rate held steady at 4.3%.

With inflation still described as elevated, the stronger labour data revived worries that the Federal Reserve could stay tighter for longer, or even consider raising rates rather than cutting them. The 10-year Treasury yield jumped to 4.54%, and the odds of a rate hike this year increased. For long-duration, high-multiple AI stocks, a rapid rise in yields can compress valuations quickly, especially when sentiment is already fragile.

Geopolitics and oil added a second layer of risk

Alongside rates, investors were also reacting to geopolitical risk. The report referenced a renewed US-Iran conflict that further complicated an already fragile oil market. Higher energy prices can affect risk appetite broadly and raise concerns about inflation dynamics.

The same commentary noted potential complications for future inflows from Gulf states, which were described as a key market for AI investment. Even without direct operational links to semiconductor supply chains, this type of headline risk can change how investors price growth themes in the near term.

How markets traded after the shock

After the initial shock, chip shares showed some recovery before selling resumed. The narrative described a mild rebound on Monday, followed by renewed selling on Tuesday and Wednesday, signalling that investors remained skittish. In early trading after South Korea’s market recovery overnight, the Philadelphia Semiconductor Sector index was up 1.8%, adding to Monday’s 5.6% gain.

The back-and-forth action suggested the market was trying to find a new equilibrium between strong demand signals and stretched positioning. It also showed that the AI narrative was being tested more on expectations and discount rates than on immediate end-demand data.

Global spillover, including India

The selloff was not confined to the US. Risk sentiment weakened across global markets as AI stocks lost momentum and oil prices rose. India was not fully insulated, with the Sensex, NIFTY, and midcaps ending lower.

The report also noted that pockets such as Consumer Durables and Banking helped cushion some of the fall in Indian markets. That pattern fits a broader “risk-off” rotation where investors lean toward relatively defensive or domestically driven segments when global tech volatility rises.

What the data says at a glance

Market impact and why it matters

The most immediate impact was a sharp repricing of semiconductors and AI-linked tech, with the heaviest damage in the most crowded trades. The move also showed how a macro catalyst such as a hotter jobs report can amplify a sector-specific disappointment. When yields rise quickly, the market often reassesses how much it is willing to pay for future growth, and semiconductors have been central to that growth narrative.

At the same time, the report highlighted that “none of the factors, on its own, says the AI boom is over.” A Wells Fargo equity strategist, Ohsung Kwon, described the semiconductor sector as “way overbought” and said he did not think it was the end of the semiconductor bull market. The SOX index was also described as still up 79% year-to-date, underscoring how far the rally had run before the pullback.

Conclusion

The semiconductor selloff combined two ignition points: Broadcom’s AI guidance not clearing a high bar, and a strong US jobs report that pushed yields higher. Together, they drove a sharp valuation reset that erased about US$1.3 trillion in chip-sector market value and dragged broader tech indices lower. Near-term trading has remained volatile, with rebounds followed by renewed selling, as investors reassess expectations and the rate backdrop. Further direction will likely depend on incoming macro data, future guidance from major chipmakers, and how oil-driven inflation risks evolve.