Chipmakers Just Lost 6.7% in Two Days: Inside the Great AI Trade Rotation

Semiconductor stocks that had roughly doubled during the second quarter of 2026 have started unwinding those gains fast, with the Philadelphia Semiconductor Index losing 6.7% in a two-session slide that has wiped out billions in market value even as broader indices climb toward record territory, according to CNBC’s markets desk.

The Sell-Off’s Anatomy

The damage has concentrated in specific names rather than spreading evenly across the sector. Sandisk tumbled 10.6%, Applied Materials fell about 10%, and Micron Technology, Lam Research, Intel, and Marvell each lost between 5.5% and 10% as investors took profits following what Schwab’s market desk described as a great run for chip stocks through the second quarter, per Schwab’s update. Teradyne and KLA fared worse still, sliding 13.6% and 11.5% respectively, dragging the VanEck Semiconductor ETF down 4.5% in a single session, according to CNBC.

Even Nvidia, the bellwether that has anchored the AI trade since 2023, pulled back 1.4%, a modest decline by comparison but notable given the stock’s outsized influence on index-level performance. The moves have come despite Applied Materials carrying a Zacks Rank #1, or “Strong Buy,” rating, illustrating that the current rotation is driven by positioning and sentiment shifts rather than any change in fundamental analyst outlooks, per Zacks’ coverage.

Rotation, Not Retreat

What distinguishes this pullback from a broader risk-off event is where the money is flowing instead. Communication services and financial stocks were the session’s biggest gainers, with the sector-tracking SPDR funds for each rising 2.4% and 2.2% respectively even as the Information Technology Select Sector SPDR dropped 2.6%, Zacks reported. One market strategist characterized the move as “a rotation potentially out of a sector that’s been red hot for the last few months and into other areas,” while also noting a broader revaluation of the AI trade itself is underway, language captured in CNBC’s live coverage.

Netflix shares jumped 5% on Thursday afternoon, making the streaming company a standout outperformer within the Nasdaq-100 even as that index sold off roughly 2% overall, on pace for its best single day since late February and a 5.6% weekly gain heading into the holiday-shortened trading week, per CNBC.

The Meta Cloud Pivot Adds a New Wrinkle

Adding to the sector’s uncertainty, news broke that Meta plans to begin renting out portions of its computing infrastructure, positioning the social media company as a direct competitor to smaller cloud providers such as Nebius and CoreWeave. JPMorgan analyst Doug Anmuth pushed back on the strategy in a note to clients, arguing the company would be better served developing its own inference capabilities to strengthen its advertising business rather than diversifying into infrastructure rental, according to CNBC’s reporting on the note.

The episode illustrates a broader tension within the AI capital expenditure story: as detailed in the Bank for International Settlements’ recent warning about AI-related credit risk, hyperscalers are increasingly searching for revenue streams to justify capex that already outpaces free cash flow, and Meta’s cloud pivot can be read either as prudent diversification or as a signal that internal AI economics are not yet closing the gap analysts expected.

What This Means Going Into a Holiday-Shortened Week

US markets closed Friday, July 3, for Independence Day, meaning the semiconductor sector enters a long weekend carrying two days of sharp losses without the usual next-session opportunity to stabilize. The next scheduled catalyst is the ISM June Services PMI on July 6, followed by FOMC minutes on July 8, both of which will shape whether the current rotation out of chip stocks and into rate-sensitive sectors continues or reverses.

Small-cap stocks, meanwhile, just posted their best first half since 1991, according to Google Finance’s markets summary, a data point that reinforces the rotation narrative: capital appears to be broadening out from the concentrated AI mega-cap trade that dominated 2025 and early 2026 into a wider set of market segments, even as the underlying question of whether AI infrastructure spending can generate the returns markets have priced in remains unresolved.