US Stock Market Summary for May 11, 2026

On Monday, May 11, the US stock market saw another push higher from semiconductors and AI infrastructure, even as the collapse of Iran negotiations cast a macro shadow. The S&P 500 rose 0.19% to 7,412.84, once again rewriting its all-time high, while the Nasdaq Composite added 0.10% to 26,274.13, extending its record run. The Dow Jones also closed 0.19% higher at 49,704.47. However, the Volatility Index (VIX) jumped 6.81% to 18.36, pointing to a swift rise in hedging demand, and the Fear & Greed Index held at 67 (Greed) even as internal flows tilted toward risk-off assets. Over the weekend, President Trump rejected Iran's ceasefire counterproposal as "entirely unacceptable," reviving concerns about a prolonged Hormuz Strait blockade. Despite that backdrop, the AI memory, optical, and communications chip lineup rallied sharply — including Corning ($GLW), Qualcomm ($QCOM), Western Digital ($WDC), Seagate ($STX), and Micron ($MU) — driving the indices to new highs.

Sector flows split cleanly between the Iran-driven macro shock and the AI cycle. Energy ($XLE) +2.64% led the way, with crude oil ETF ($USO) +3.80%, natural gas ($UNG) +6.15%, and uranium ($URA) +3.72% all surging as WTI pushed back to the $98–$99 per barrel range, drawing buying into refining, power generation, and nuclear names. Cyclical and AI infrastructure sectors also climbed — industrials ($XLI) +1.06%, materials ($XLB) +1.30%, and technology ($XLK) +1.34% — while industrial metals exploded, with copper ($CPER) +2.93%, platinum ($PPLT) +3.74%, and silver ($SLV) +6.83%, underscoring a clear rotation into inflation-hedge assets. On the other side, communications ($XLC) -1.16%, staples ($XLP) -0.96%, discretionary ($XLY) -0.69%, and healthcare ($XLV) -0.31% all closed lower, as big-tech ad-dependent and defensive lines sold off. The bond market priced in a prolonged Hormuz blockade scenario, with weakness concentrated in the long end: $TLT fell 0.60% and the 10-year $IEF slipped 0.33%, pushing yields higher once again. Within safe-haven assets, gold ($GLD) was roughly flat at +0.20%, but silver surged 6.83%, reflecting a combination of industrial demand and safe-haven demand.

Semiconductor memory and optical component names once again took center stage. $GLW (Corning) +10.94% led the top 100 by market cap, with data-center optical cable demand visibility gathering momentum, while $QCOM (Qualcomm) +8.42% benefited from analyst upgrades and renewed expectations for AI edge-device upside. The HDD and nearline storage pair — $WDC (Western Digital) +7.47% and $STX (Seagate) +6.56% — along with $MU (Micron) +6.50% and its HBM memory lineup, pushed further into record-high territory. $PM (Philip Morris) +6.50% stood out within defensives on strong first-quarter guidance commentary. On the downside, $ISRG (Intuitive Surgical) -6.67% plunged on concerns over medical-device insurance reimbursement changes, and $DELL (Dell) -5.15% gave back ground after Friday's +13.11% surge on short-term profit-taking. Other data-center infrastructure names such as $ANET (Arista) -3.77% and $APH (Amphenol) -4.34% also faced profit-taking pressure, while defensive and media names such as $PEP (Pepsi) -3.37% and $DIS (Disney) -3.05% weakened in sympathy. (WSJ — Chip-Stock Frenzy Continues, CNBC — S&P 500 ekes out a gain for first close above 7,400)

> Key events for the next trading session are displayed automatically.

> "Consensus earnings forecasts have never been revised upward this quickly. As a result, we're seeing an earnings-driven melt-up, and a roughly 23% earnings growth outlook for 2026 can fairly be called 'extraordinary.'"

> — Ed Yardeni, President of Yardeni Research (quoted in CNBC interview)

> "How long the Iran situation drags on will ultimately dictate the Fed's rate path directly. Even if the near-term oil shock is treated as 'noise,' if the conflict extends beyond a quarter, the Fed will find it difficult to pull the rate-cut card back out."

> — Scott Chronert, US Equity Strategist at Citi

> "The market is currently losing roughly 100 million barrels of supply per week. If the blockade is prolonged, normalization cannot be pushed beyond next year."

> — Amin Nasser, CEO of Saudi Aramco

The combination of the Nasdaq RSI at 83.23 and a +6.81% VIX spike is a textbook signal of an overheated regime in which both momentum and hedging demand are intensifying simultaneously. The April CPI release on Tuesday at 9:30 PM Korea time will likely determine the short-term inflection point. Detailed stock lists by signal and sector concentration are available in the Technical Signals Report.