Semiconductor stocks staged a sharp reversal on Tuesday as ARM Holdings PLC (NASDAQ: ARM) surged 5.69% and Applied Materials Inc. (NASDAQ: AMAT) climbed 4.35%, even as the S&P 500 shed 1.21% and the Nasdaq Composite fell 1.34% on hawkish signals from Federal Reserve Chairman Kevin Warsh. The Philadelphia Semiconductor ETF, SOXX, advanced 1.44% to close at $599.73, marking a stark divergence from the prior session's broad chip rout and reversing most of Monday's losses in the hardware segment, while software stocks continued to retreat on higher rate expectations.
Today's biggest movers
| Ticker | Close | Day | 1mo | YTD |
|---|---|---|---|---|
| $ARM | $418.88 | +5.69% | +87.71% | +265.10% |
| $AMAT | $592.92 | +4.35% | +45.71% | +120.52% |
| $AVGO | $392.90 | +4.30% | -4.42% | +13.03% |
| $DELL | $419.32 | +3.77% | +78.24% | +228.11% |
| $INTC | $121.10 | +3.46% | +9.30% | +207.52% |
| $NOW | $95.48 | -5.77% | -6.24% | -35.25% |
| $META | $567.58 | -5.44% | -5.81% | -12.74% |
| $SMCI | $27.78 | -4.93% | -9.10% | -10.27% |
| $CRM | $155.02 | -4.14% | -13.60% | -38.88% |
| $MDB | $334.69 | -4.05% | 0.00% | -16.25% |
ARM Holdings surges 5.7% on Bernstein agentic AI thesis
ARM Holdings PLC (NASDAQ: ARM) was the session's standout gainer, climbing 5.69% to $418.88 and extending a year-to-date advance of 265%. Analysts at Bernstein published a bullish note arguing that the shift to agentic AI systems, which involve autonomous task execution and complex multi-step orchestration, disproportionately benefits ARM-based central processing units over graphics processing units. The firm sees CPU intensity rising meaningfully as inference workloads and agent coordination steps multiply across enterprise deployments.