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.
The move builds on ARM's record Q4 fiscal 2026 results, in which revenue rose 20% year over year to $1.49 billion, licensing revenue jumped 29% to $819 million, and data center royalties more than doubled as cloud AI demand accelerated. Multiple banks raised price targets: Mizuho to $425 from $360, Barclays to $360 from $250, and Bank of America to $335. ARM has rallied in three of the last four sessions, adding to gains posted when geopolitical conditions improved earlier this month (see our June 15 recap).
Applied Materials jumps 4.4% on four simultaneous analyst upgrades
Applied Materials Inc. (NASDAQ: AMAT) rose 4.35% to $592.92 as four banks raised price targets on the same session. Citi analyst Atif Malik moved his target to $710 from $550, citing bullish demand for NAND memory equipment and a widening gap between available DRAM supply and AI compute requirements. Cantor Fitzgerald raised to $650 from $575, flagging multi-year supply-constrained conditions and bookings visibility stretching into 2028. Barclays lifted to $590 from $500, tying the upside to wafer fab equipment spending that may top $200 billion industry-wide by 2027. UBS moved to $570 from $515 and reaffirmed a Buy.
Singapore's accelerating AI infrastructure buildout was cited across several notes as a demand catalyst. AMAT is up 120% year to date, having fully recovered from a May correction. The coordinated upgrades indicate rising institutional confidence in a sustained multi-year equipment upcycle.