SanDisk Cracks $1,548 Support as Samsung's Blowout Q2 Triggers a Memory Sell-the-News

Sell the News on Samsung

The proximate trigger was a textbook sell-the-news. Samsung posted preliminary Q2 operating profit of about 89.4 trillion won (~$58.44 billion), a 19-fold jump year over year, with revenue up roughly 129% to 171 trillion won — a clean beat on consensus. And yet Samsung fell more than 6% in Seoul, and U.S. memory names bled out overnight alongside it: Micron, Western Digital, SanDisk and the Roundhill Memory ETF all shed roughly 4–5%. When numbers that good can't hold a bid, it tells you the AI-memory boom was already priced in after a monster run. This is the same rotation that opened the month, when the Philadelphia Semiconductor Index dropped over 6% on July 1 and Fed Chair Kevin Warsh flagged stretched asset valuations.

Why SanDisk Bleeds More Than Peers

SanDisk isn't just riding sector beta down. Roughly 60% of its NAND output is exposed to spot pricing, with only about a third of fiscal 2027 revenue secured under contract — so any hint of a supply glut from Samsung and SK Hynix capacity additions flows straight to earnings, and faster than it does for more-contracted peers. Layer on a P/E north of 60 after a ~635% year-to-date run — and better than 6,000% since the February 2026 Western Digital spin-off — and you have a name primed for a valuation reset the moment sentiment turns. The sell-side is openly split on whether it's already too rich: Goldman just lifted its target to $2,200 from $1,200, Bernstein sits at $3,000, Citi and BofA at $2,500, yet the 16-analyst average of about $2,041 barely clears where the stock trades.

The Level That Just Broke

Earlier in the run SanDisk had been bouncing off support near $1,548; at $1,539 that floor has now given way. RSI down around 34 puts the tape in oversold territory, but the broader memory selloff has refused to find a bottom across four sessions, and neither a fresh Kioxia NAND partnership nor a Morgan Stanley price-target raise has stemmed the bleed. The real tell from here is spot NAND pricing itself. If it holds firm, this drawdown reads as positioning and profit-taking after a red-hot run; if it actually softens, the bear case built on SanDisk's spot exposure stops being theoretical.