Micron's Record Quarter Is Losing to a Korean Leverage Flush

Micron Printed Its Best Quarter Ever

There is nothing wrong with the business. Micron's fiscal Q3 came in at $41.46 billion in revenue, up roughly 346% year over year, with non-GAAP EPS of $25.11 against a ~$20.20 consensus and a record adjusted gross margin of 84.9% — more than double the level a year earlier. The guide was arguably the bigger shock: management pointed to a record ~$50.0 billion next quarter, give or take $1 billion, at roughly 86% gross margin, with HBM revenue clearing $1 billion for a second straight quarter and 2026 HBM capacity fully committed under long-term agreements. The stock initially did what you'd expect, jumping about 15% in the after-hours session on the print. Then it gave it all back. The bid simply never showed up in the regular session, and three days later the perp is sitting below where it traded going into the report.

The Selloff Started in Seoul

The catalyst isn't a Micron headline — it's a leverage unwind that originated in Korea. On June 23, the country's Financial Supervisory Service warned on leveraged single-stock ETFs, a product class that had ballooned past $9 billion after 16 funds tracking Samsung and SK Hynix were approved in late May. The warning lit the fuse: the KOSPI fell 9.99% and tripped a market-wide circuit breaker as Samsung and SK Hynix each dropped more than 12%. Because the memory complex trades as one book, the flush jumped the Pacific — Micron fell roughly 13% and SanDisk dropped a similar amount the same session. The setup left no margin for error: MU had run about 847% over the prior 52 weeks into a ~50x multiple, so the entire trade was crowded and stretched before Korea ever cracked. Even a blowout quarter couldn't reverse it; Apple's slide overshadowed Micron's earnings as the Nasdaq fell for a fourth straight day. When forced sellers control the tape, fundamentals wait their turn.

Glut Fears Versus a Market That's Still Short

The bear narrative attached to this move is a memory-pricing rollover and looming supply glut. The actual supply picture says the opposite. Samsung, SK Hynix, and Micron — who together control over 95% of DRAM — have been converting capacity to HBM, where revenue per wafer runs three to five times conventional DDR5, and Samsung is now warning that AI-driven memory shortages could persist through 2027 and beyond, with DRAM prices roughly doubling since early 2025. So this isn't demand evaporating — it's a position being repriced after an 847% run, with technical momentum signals turning bearish as the leverage drains out. That cuts both ways for the perp. If the forced selling exhausts, the fundamentals are the strongest in the company's history and justify a bid back toward the print. If the deleveraging has further to run, a ~50x multiple can keep compressing no matter how good the quarter was — the numbers stopped being the variable the moment Seoul tripped the breaker.