SanDisk Breaks Below Its Memory-Selloff Low as SK Hynix's Seoul Crash Hits the Sector

Seoul Cashes Out the Hynix Trade

SNDK's drop has almost nothing to do with Sandisk. The trigger sits in Seoul, where SK Hynix's local shares fell 15.4% on Monday — the worst single day in the company's history — as investors booked profits three days after its record U.S. listing. SK Hynix had priced $26.5 billion of ADRs at $149, the second-largest share sale ever, then popped 13% to close at $168.01 in its Friday Nasdaq debut. Monday was the mirror image. The Seoul flush cascaded straight into every memory and AI-chip name, with Micron, Nvidia, AMD and Sandisk all lower in the premarket and Nvidia, Broadcom and AMD leading the broader AI-chip selloff.

Why SanDisk Falls Hardest

When the memory trade unwinds, SNDK is the amplifier. Micron slid roughly 6% and Nvidia around 3%; Sandisk dropped a multiple of that. That is the cost of being the highest-torque way to play the NAND cycle after a face-ripping 2026 run. The perp had already round-tripped last week's Meta NAND-supply pop back toward the ~$1,743 low set during the July 7 Samsung-earnings selloff; today's leg takes it clean through that floor. The bear read under the tape isn't Sandisk-specific — it's that memory production yields are catching up faster than expected and the shortage premium that carried NAND and HBM pricing this year may be closer to its peak than its start. On a profit-taking day, the market sells the name with the most beta to that fear, and that name is SNDK. The $198.8M in 24h HIP-3 perp volume shows the flow is finding this market.

The Setup Into August 5

Nothing about Sandisk's fundamentals changed on Monday. Next earnings don't land until August 5, and the sell side is still leaning bullish: Goldman Sachs recently lifted its SNDK target to $2,200 from $1,200 on a strong NAND outlook. That gap — a stock breaking multi-day lows while analysts mark targets up — is the whole tension in the name. Bulls read the SK Hynix unwind as temporary profit-taking against structural AI-memory demand; bears see the first crack in the shortage narrative. The tell is whether SNDK holds or loses the old $1,743 shelf. Reclaim it and this is one more dip in a violent uptrend; keep failing there and the cycle-top thesis finally gets a real data point.