SanDisk Slides to $1,838 as Supply-Glut Fears Drag the Whole Memory Complex Lower

One Name in a Complex-Wide Derating

SanDisk's 11% drop isn't a SanDisk story — it's the entire memory complex derating in lockstep. On the same session, Seagate fell 7% to $852, Western Digital 7% to $556, and Micron 4% to $992 while SanDisk led the losers down toward $1,800. The trigger was sentiment, not a filing: Morningstar's research director warned that "a large slice of AI names could give back 20% to 30%" before becoming buyable again, singling out memory as the most exposed to a valuation reset. This has the texture of start-of-second-half profit-taking and institutional rebalancing out of the year's biggest winners — TipRanks framed the premarket weakness as sector rotation with no company-specific catalyst attached.

The Supply Story Flipped From Tailwind to Overhang

The bear thesis is straightforward: announced capacity additions from Samsung and SK Hynix are expected to soften pricing as supply catches up with demand, while AI capital expenditure — the engine behind the run — is expected to peak in 2026 and taper thereafter. That combination is a direct threat to the NAND average selling prices that drove SanDisk's re-rating. There's an adjacent overhang, too: the three DRAM giants — Samsung, SK Hynix and Micron — were hit with a U.S. price-fixing class action on June 25, alleging they used the HBM shift as cover to curtail DDR3/DDR4 output and inflate prices roughly 700% over four years. SanDisk isn't named — it's NAND flash, not DRAM — but the suit hardens the "memory is an oligopoly running hot" narrative that valuation-reset sellers are leaning on.

The Bull Case Hasn't Actually Broken

None of the sell-side capitulated on the way down. Bank of America raised its SanDisk target to $2,500 with a Buy rating, arguing the NAND supply/demand imbalance and firm pricing persist through 2027, and a Street-high $3,000 target is still live. The context that matters: SanDisk is up roughly 700% year-to-date and trades near 70x earnings, so a reset off an all-time high near $2,354 was always in the deck. It has already sliced through $2,000; $1,730 is the support area bulls need to hold. At roughly $1,838, the tape is a coin-flip between a healthy pullback in an intact uptrend and the front edge of the 20% to 30% air pocket Morningstar is warning about.