Nasdaq Gains 2% as Chip Losses Persist

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Micron's blowout Q3 earnings drive a 2% Nasdaq surge on June 26, but broader chip stocks extend losses as a volatile session splits into AI memory winners and hyperscaler losers.

Lead

U.S. equities surged at the open on Friday, June 26, as Micron Technology's (MU) historic fiscal third-quarter results pushed the Nasdaq Composite up more than 2% — one of the sharpest single-session bounces for the index in recent weeks. The rally marked the latest chapter in a volatile stretch of tech volatility that erased trillions in semiconductor market value and left investors parsing which corners of the AI infrastructure trade remain intact. This Nasdaq update today arrives after a punishing three-day stretch for chip stock losses globally, with the Schwab market update flagging Micron's results and May PCE data as the session's two defining catalysts.

What Happened

The results were released after the June 24 close, triggering a 12%–17% after-hours surge in MU shares. The move added more than $400 billion in implied market value across the AI semiconductor sector overnight. MU opened Friday up approximately 15%–17%, acting as the primary driver behind the Nasdaq's index-level gain.

Market Reaction

Despite the headline lift, the intraday session was volatile and deeply divided. The Magnificent Seven — Apple (AAPL), Microsoft (MSFT), Nvidia (NVDA), Alphabet (GOOGL), Amazon (AMZN), Meta Platforms (META), and Tesla (TSLA) — traded lower across the board. The divergence is not incidental: Micron's 84.6% gross margin represents an escalating cost input for every major cloud and AI infrastructure operator. Where Micron's results are bullish for memory suppliers, they simultaneously signal higher infrastructure costs for hyperscalers, pressuring the Mag 7 complex.

Broader chip stock losses persisted among names that had already suffered the prior week's sell-off. Intel (INTC), Advanced Micro Devices (AMD), and Qualcomm (QCOM) saw limited recovery after losing 6%–8% earlier in the week. The Philadelphia Semiconductor Index showed initial strength on Micron's numbers but failed to hold gains as non-memory names continued to drift lower.

The prior week's sell-off was significant in scope. On June 22, the Nasdaq fell 2% in a single session, led by Micron, which shed 13% — having hit a new all-time high above $1,051 per share the previous day. The sell-off went global: South Korea's Kospi shed 10%, with SK Hynix and Samsung Electronics each down more than 12%. SanDisk lost 13%, Seagate Technology (STX) fell more than 5%, and the losses spread across memory and storage supply chain names. In aggregate, roughly $1.3 trillion in semiconductor market capitalization was erased across global markets in the three-session span.

Macro Context

Friday also brought the May Personal Consumption Expenditures (PCE) report, a closely watched inflation gauge and a central input for Federal Reserve policy deliberations. Headline PCE rose 0.4% month-over-month, matching consensus and April's pace. Core PCE, which excludes food and energy, increased 0.3%, also in line with expectations. The University of Michigan's final June consumer sentiment reading rounded out the morning's data docket.

Per Schwab market news, the PCE print is consistent with a Fed that has some time to wait and assess how the next few months evolve before committing to any rate action. With inflation tracking at consensus rather than surprising to the upside, the market avoided the added headwind of forced rate-hike repricing. Rate expectations remained subdued heading into the session.

Strategic Context

The week's tech volatility highlighted structural tensions embedded in the AI trade. Semiconductor stocks entered June as among the most heavily owned positions across institutional portfolios, and the unwinding of crowded positioning amplified losses beyond what earnings or guidance revisions alone could justify.

Micron's results resolve one uncertainty — AI memory demand is intact and accelerating — while introducing another. Gross margin expansion from 37.7% to 84.6% in one year underscores a fundamental shift in memory pricing power. That shift is a tailwind for suppliers and a cost headwind for the hyperscalers building and operating large-scale AI infrastructure. Microsoft Azure, Google Cloud, Amazon Web Services, and Meta AI will all face questions about AI buildout costs when they next report quarterly results, and Micron's numbers have made those questions more pressing.

Outlook

Friday's session reflects a market still recalibrating the economics of AI infrastructure rather than cleanly resuming the prior bull trend. Micron's earnings validate the structural demand cycle for AI memory, but the concurrent weakness across the Mag 7 and non-memory chip names signals that cost pressures are becoming a more central variable in how investors value the sector. PCE in line with consensus provides a supportive macro backdrop by keeping the Fed on hold. The next key data will come from hyperscaler earnings, which will clarify AI capital expenditure trajectories and determine whether Micron's margin expansion becomes a sector-wide tailwind or a friction point that slows infrastructure deployment.