The $1.2 Trillion Memory Maker: Micron's 930% Rally Meets a Reality Check

Micron shares drop over 7% after Broadcom's AI revenue forecast shortfall, while chipflation and HBM shortage drive analyst upgrades despite overbought signals.

Micron Technology crossed the $1 trillion mark in market capitalisation just 48 trading sessions ago, having doubled in value to roughly $1.2 billion — a 930% surge over the past year that ranks among the most explosive in the semiconductor space. Yet on Thursday the stock tumbled more than 7% to €864.80, widening the gap to its 52-week high of €938.70 to nearly 8%. The pullback highlights a growing tension between structural tailwinds and short-term overexuberance.

The immediate trigger came from Broadcom. The chip giant posted record second-quarter revenue of $22.19 billion, up 48% year-on-year, and issued a third-quarter outlook that topped expectations. But its AI semiconductor division is forecast to generate $16 billion in the fourth quarter — short of the $16.36 to $17.2 billion analysts had pencilled in. That gap was enough to send Broadcom's stock down more than 13% in after-hours trading, dragging Micron with it. With Micron's relative strength index at 70.8 — just shy of the overbought threshold — the stock was vulnerable to such a shake-out.

The Chipflation Paradox

At the same time, the broader memory market is gripped by what analysts are calling "chipflation". Nine US industry associations, representing automotive, retail and medical technology among others, sent a letter to the Treasury Department on June 3 warning that the AI boom is cannibalising production capacity for conventional memory chips. Some memory chips have risen sixfold in price over the past year. The groups describe a "critical imbalance" that threatens supply chains across multiple sectors.

For Micron, this scarcity is a double-edged sword. On one hand, it has driven a furious round of analyst upgrades. Morgan Stanley's Joseph Moore doubled his price target to $1,050, maintaining an 'Overweight' rating, and lifted his earnings estimates for fiscal 2026 and 2027 by 4% and 48% respectively. Susquehanna pushed its target even higher to $1,750, while UBS tripled its own to $1,625. The consensus: the DRAM and HBM shortage will persist for two to three years or longer, and the three dominant players — Samsung, SK Hynix and Micron — control roughly 90% of global supply.

Demand Running at Double the Capacity

The numbers bear out the thesis. DDR4 memory rose 3.57% in the week ending June 3 to $34.80. More crucially, Micron can currently only fill between 50% and 66% of customer orders for high-bandwidth memory (HBM), and its HBM capacity is sold out well into 2027. The company is developing HBM4 chips with bandwidth exceeding 2.8 TB/s, optimised for Nvidia's forthcoming 'Vera Rubin' GPUs, and CEO Sanjay Mehrotra expects the HBM market to reach $100 billion by 2028, growing at a 40% annual rate.

To reduce the cyclical volatility that has historically plagued memory makers, Micron is locking in long-term deals. The first of these 'Strategic Customer Agreements' runs for five years, giving both sides production visibility. Revenue in the first quarter of fiscal 2026 hit $13.6 billion, up 56.6% from a year earlier, and management has guided for a record $18.7 billion in the second quarter.

The Bear Case Remains

Not everyone is buying the story. 24/7 Wall St has slapped a 'Sell' rating on the stock with a price target of $476.66, arguing that memory cycles always correct sharply. The RSI reading of 83 from the secondary article — versus 70.8 in the primary — underscores how overbought the shares had become. With Micron's Q3 results due on June 24, the market will soon test whether the record $18.7 billion forecast holds up and whether margins can withstand a ramp-up in HBM3E production. For now, the combination of a 930% annual gain, institutional exuberance and a single earnings miss from a peer is enough to remind investors that even the most compelling secular stories can stumble in the short run.