Micron stock rally has legs as AI memory demand locks in record margins

Micron's rally reflects a fundamental repricing of the memory market as AI demand has transformed it from a cyclical commodity into a strategic asset. The company's dominance as the only U.S.-based supplier, combined with its HBM franchise that now commands monopoly-like pricing power, has reset earnings, margins, and forward guidance in lockstep. The 16 Strategic Customer Agreements worth roughly $100 billion in committed revenue—backed by $22 billion in deposits and letters of credit—represent a structural break from prior memory cycles. CEO Sanjay Mehrotra's statement that "the gross margins at the floor will be well beyond the peaks that we experienced" signals confidence that even a downturn would hold profitability above historical peaks, a claim supported by Q3 FY26 non-GAAP gross margins of 84.9%.

However, two material risks temper the bull case. Insider behavior has been heavily skewed toward selling: CEO Mehrotra executed 122 separate sell transactions over three months, and CPO April Arnzen sold 35,364 shares at $1,077 to $1,096, with zero insider buys recorded. Simultaneously, Citi cut its price target to $1,150 from $1,400 on August 7, citing expectations that memory prices will peak in 2027, and SK Hynix has announced a $38 billion fab expansion that will add competing HBM capacity. Memory remains fundamentally cyclical, and Micron's $7.8 billion quarterly capex assumes AI demand continues compounding without interruption. The forward P/E of 6 may look cheap, but it assumes current guidance holds and pricing does not roll over before 2027.