SNDK Drops Another 14% as the Memory Unwind Deepens and SK Hynix Looms

No Bad News, Just Less Froth

There is nothing wrong with Sandisk. That is the most important thing to understand about a 14.10% slide to $1,560. This is the best-performing stock in the S&P 500 in 2026, a name that ran several hundred percent on a genuine AI-driven NAND shortage, and it is now unwinding that froth in compressed, multi-day legs rather than a single capitulation.

The move started when Broadcom guided Q3 AI chip revenue to roughly $16 billion against the $17.2 billion Street estimate, sending AVGO down about 15% and flipping the entire semiconductor tape risk-off. Memory got dragged along: Micron and Western Digital both fell more than 8%, with Seagate off over 7%. SNDK has no earnings, no downgrade, and no warning attached to this leg — it is correlation, not a fundamental break.

SK Hynix Adds a Real Competitive Wrinkle

What separates this leg from pure contagion is the supply-side story building underneath it. SK Hynix is advancing a $10–14 billion U.S. listing targeted for June or July, having already filed confidentially with the SEC. A cash-rich, record-margin memory giant raising U.S. capital is exactly the kind of headline that reignites the cyclical-supply worry hanging over NAND/DRAM.

The bull case for SNDK rests on the shortage persisting long enough to keep pricing elevated. Any signal that a major competitor is gearing up to fund expansion cuts directly against that thesis. It does not change today's contract book, but it changes how the market underwrites next year's pricing — and at these multiples, the out-years are doing all the work.

The Valuation Is the Whole Story

After a run this size, the math gets unforgiving. SNDK has been trading around a forward P/E in the high-50s, which prices in a lot of cycle going right. The fundamentals behind the rally are real — Sandisk guided Q3 revenue to $4.4–$4.8 billion with 65–67% gross margins — but that is also peak-cycle math, and the bear case is concrete: if NAND pricing rolls over, downside targets sit near $1,027, roughly 42% below recent levels.

When a stock is up several hundred percent and the marginal buyer is paying for perfection, you do not need bad news to sell off — you just need the AI bid to wobble. Broadcom provided the wobble, SK Hynix provided the narrative, and the rest is mechanical de-risking of the most crowded long in the index.

What to Watch

The signal that matters is NAND spot and contract pricing, not the daily tape. As long as exabyte demand stays tight, every one of these drawdowns is a reset rather than a top. The tell that the thesis is actually cracking would be a roll in pricing or a soft data-center order from a hyperscaler — neither has shown up yet.

Near term, this is a sentiment and positioning trade riding the broader memory complex. The next real test is whether SK Hynix's listing lands as a supply scare or gets absorbed as a non-event, and whether the AI chip names stabilize after the Broadcom flush. Until then, SNDK trades as the high-beta expression of the entire memory cycle.