S&P 500 dips 0.2% as semiconductor rout fuels sector rotation

The S&P 500 edged lower Tuesday as a 6.3% plunge in semiconductor stocks triggered a rotation into financial and telecom shares.

The S&P 500 fell 0.2% as a semiconductor-led selloff in the Nasdaq 100 drove investors into financial and telecom stocks, deepening the divide between winning and losing sectors.

"This is a textbook rotation trade — money is moving out of high-flying semiconductor names into value sectors that have lagged," said Jay Woods, chief market strategist at Freedom Capital Markets. "The question is whether this is a one-day repositioning or the start of a broader trend."

The Nasdaq 100 dropped 1.5%, with semiconductor stocks bearing the brunt. Nebius Group plunged 16.2%, CoreWeave fell 13.6%, and KLA, Teradyne, and SanDisk each lost more than 10%. Micron Technology declined 9.9%, while ASML's ADR slipped 7.5%. The Philadelphia Semiconductor Index's 6.3% decline was its steepest single-day drop in recent months. On the Dow Jones Industrial Average, Salesforce and Nike each rose more than 4%, leading gainers alongside American Express, Microsoft, and UnitedHealth. Caterpillar fell 6.6% and Walmart dropped 3.8%.

The rotation comes as the S&P 500 has risen more than 8% in 2026, on track for its fourth straight winning year. RBC Capital Markets lifted its 12-month price target on the index by 250 points to 8,150, implying about 10.8% upside. But Lori Calvasina, the firm's head of U.S. equity strategy, warned that the path higher would be volatile, citing the risk of Federal Reserve rate hikes. Fed funds futures are pricing in a 64% likelihood of a rate increase at the central bank's September meeting, according to CME's FedWatch tool.

Semiconductor Selloff Deepens

The Philadelphia Semiconductor Index's 6.3% decline erased gains from earlier in the quarter and dragged the broader tech sector down 1.7%, making it the worst-performing S&P 500 sector. The energy sector fell 0.8%, while financials gained 2.1% and telecom rose 2.6%, the top performers on the day.

Among the few tech winners, Meta Platforms surged 9%, Applovin jumped 9.6%, and Palantir Technologies added 8.1%. PDD Holdings' ADR also rose 8.1%, showing that the selloff was concentrated in semiconductor and infrastructure names rather than the broader technology ecosystem.

Rate Worries Loom Over Rally

The rotation into financials and telecom reflects growing concern that the Federal Reserve may resume its tightening cycle. Calvasina said her team has "a little less concern" about rate hikes compared with a month ago, but she noted that if recession fears stay low and the Fed delivers only moderate increases, the market should see only "garden variety" pullbacks of 5% to 10%.

The S&P 500's year-to-date gain of more than 8% has been driven largely by AI-related technology stocks, leaving the index vulnerable to precisely the kind of sector rotation seen Tuesday. The average Wall Street strategist tracked by CNBC Pro expects the S&P 500 to finish 2026 at 7,807, roughly 4% below Calvasina's 12-month forecast.

This article is for informational purposes only and does not constitute investment advice.