Micron Keeps Bleeding on a SOCAMM Scare That Doesn't Touch HBM

Where the Selloff Actually Started

This isn't a June 9 story — it's the third leg of an unwind that began the week prior. On June 4, Broadcom reported earnings and declined to raise its full-year AI semiconductor forecast, with Q3 AI chip guidance of $16 billion landing under the $17.2 billion the Street wanted. The market had priced AVGO for a continuous upward revision; getting a hold instead triggered aggressive profit-taking across the entire AI-memory complex. Micron crashed in sympathy that session, then fell another 13% the next day. What's unwinding is the so-called 'Parabolic 7' — Micron, SanDisk, Marvell, AMD, Dell, Intel and Broadcom — a basket that had massively outrun the SOX into mid-2026. MU itself was up roughly 700% over the trailing year and had crossed a $1 trillion market cap in late May before peaking at $1,089.

SOCAMM Isn't HBM

The second blow, and the one doing real damage to sentiment, was a SemiAnalysis report that Nvidia's Rubin NVL72 will cut memory capacity per rack from 55TB to 28TB, swapping fully-populated 192GB SOCAMM modules for 96GB. The tape read that as a memory-demand cut and sold the whole group. But here's the detail that matters: SOCAMM is LPDDR5X system memory, not the high-bandwidth memory that carries Micron's AI margins. By SemiAnalysis's own breakdown, the HBM4 content stays at roughly 20.7TB per rack — 288GB per GPU across 72 Rubin GPUs — unchanged. The cut hits the lower-margin system-memory layer, not the HBM the entire Micron bull case is built on, and the SemiAnalysis founder has since pushed back on the doomier reads. Whether the market is willing to separate those two memory types before June 24 is the actual question.

It All Compresses Into June 24

Every bit of this funnels into one number. Micron reports fiscal Q3 2026 (quarter ended May 31) on June 24, and management's own guidance points to roughly $33.5 billion in revenue and about $18.90 in EPS. Against fiscal 2027 consensus near $105.95, the stock trades around 8.5x forward earnings at $909.20 — a multiple that prices in a cyclical peak, not continued AI-memory tightness. That's the tension: either the parabolic crowd is right that the cycle is rolling over, or the market just stamped a single-digit forward multiple on a name still guiding to record numbers. A soft guide on the 24th confirms the bearish read. An in-line print with constructive HBM commentary invalidates most of this leg. There's no cushion either way.