Micron’s $1.4 Trillion Milestone Meets a 4.76% Selloff: The Memory Supercycle’s First Real Test

Just hours after crossing the $1.4 trillion market capitalization mark and briefly exceeding both Meta and Tesla, Micron Technology saw its shares slide 4.76% to €1,009.20. The pullback from a 52-week high of €1,103.80 set on June 25 looks less like a rejection of the AI memory thesis and more like a negotiation over how much future scarcity is already in the price.

The quarterly report that triggered this historic valuation leap shattered every conventional benchmark. For its third fiscal quarter of 2026, Micron posted revenue of $41.46 billion — a 346% surge year-over-year and a clean beat against the Street’s $35.7 billion estimate. Adjusted earnings per share came in at $25.11, far above the consensus $20.49. Gross margin hit 84.9%, a record, compared with 37.7% a year earlier. The data center segment alone contributed roughly $25 billion, representing about 60% of total revenue.

Even more striking than the past quarter is what lies ahead. Management guided for fourth-quarter revenue of approximately $50 billion, easily topping analyst forecasts of $43.2 billion. Customers have already locked in $22 billion in future delivery commitments. CEO Sanjay Mehrotra said he sees “no indications” of supply catching up with demand, with relief not expected until at least 2028. The company is currently in high-volume production of HBM4 for its lead customer’s platform and has HBM4E in development, underscoring how deeply Micron is woven into the AI infrastructure buildout.

That structural shift is the heart of the current debate. Micron has been pushing so-called “Strategic Customer Agreements” — long-term supply contracts designed to replace the old spot-market volatility with recurring, predictable revenue. The memory industry has historically punished its own success: high prices attract capacity, capacity overshoots, and the cycle resets. The question now is whether AI demand, client commitments, and tight leading-edge supply can permanently soften that boom-bust pattern. Bullish investors see memory evolving from a commodity swing trade into a strategic bottleneck for AI infrastructure. The bearish counter is that chips are chips, and the cycle never dies.

Should investors sell immediately? Or is it worth buying Micron?

The technical picture gives both sides ammunition. Micron has rallied more than 26% in 30 days, 275% year-to-date, and an eye-popping 837% over the past twelve months. The stock trades roughly 43% above its 50-day moving average and more than 170% above its 200-day average. That kind of extreme momentum leaves little margin for error — even good news can trigger profit-taking. The relative strength index sits at 61, well short of panic territory, but annualized 30-day volatility north of 106% means every session can feel dramatic. The consensus price target of €895.38 implies about 11% downside from current levels, a gap that suggests the analyst community has been scrambling to keep up with a stock that ran far ahead of published estimates.

This isn’t a solo show. Competitor SK Hynix is preparing a $29.4 billion Nasdaq listing of American depositary receipts starting July 10, a direct attempt to close the “Korea Discount” and give US fund managers a second liquid HBM bet. Nvidia CEO Jensen Huang confirmed that SK Hynix has passed HBM4 certification for the Vera Rubin platform. The rivalry will only intensify, but for now Micron benefits from being the only US-based high-bandwidth memory producer — a geopolitical edge as well as a technological one.

The real tension for Micron’s stock comes down to pricing power. Memory scarcity boosts margins, but rising memory costs put pressure on hyperscalers, device makers, and infrastructure buyers. At some point, those customers push back, explore alternative architectures, or diversify suppliers. The market is effectively asking: how much rent can the memory layer extract before customers revolt? Today’s mild selloff is less a verdict on the quarter and more a reminder that in a stock this far above its long-term trendlines, even a compelling structural story must deliver fresh evidence with every earnings cycle.