New York, April 20, 2026, 11:34 EDT
- Micron and Sandisk slipped in late-morning trading after a fresh warning that the memory-chip trade looks stretched.
- Sandisk’s Nasdaq-100 entry put the stock under a brighter light, but also gave investors a reason to take profits.
- AI demand still supports earnings, though pricing and valuation risk are now harder to ignore.
Micron Technology and Sandisk shares fell Monday after a technical warning hit two of the year’s most crowded artificial-intelligence memory trades. Micron traded at $441.50, down about 3.0%, while Sandisk was at $910.06, off about 1.2%, in late-morning U.S. trading.
The timing matters. Sandisk joined the Nasdaq-100 before Monday’s open, replacing Atlassian, a move that can bring buying from index funds but also invites a sell-the-news trade after a steep run-up. Nasdaq says the index is tracked by more than 200 investment products with over $600 billion in assets.
BTIG chief market technician Jonathan Krinsky told Yahoo Finance the memory semiconductor group remains “one of the most vulnerable areas” of the market after its sharp move. The concern is not demand alone; it is distance. Krinsky pointed to gaps between current prices and 200-day moving averages, a long-run trend line used by traders to judge whether a stock has run too far, too fast. Yahoo Finance
The worry comes even as the business backdrop remains strong. Micron reported fiscal second-quarter revenue of $23.86 billion, up from $13.64 billion in the prior quarter and $8.05 billion a year earlier, and Chief Executive Sanjay Mehrotra said memory had become a “strategic asset” for customers in the AI era. Micron Technology
Sandisk has its own numbers to point to. The company said January-quarter revenue rose 31% sequentially to $3.03 billion, with datacenter revenue up 64%, and forecast fiscal third-quarter revenue of $4.4 billion to $4.8 billion. CEO David Goeckeler cited better product mix, faster enterprise SSD deployments and stronger demand. SSDs are solid-state drives, the flash-based storage used in servers and devices.
Investors have paid for that growth up front. Motley Fool analyst Catie Hogan wrote Saturday that Sandisk rose 559% in 2025 and had already gained more than 277% in 2026, while Micron had also surged over the past 12 months and hit a 52-week high in mid-March. She noted Sandisk still trails Micron in scale, while Micron has wider exposure across DRAM and high-bandwidth memory, or HBM, the stacked memory used beside AI accelerators.
Some analysts still see the storage cycle lasting longer than normal. Evercore ISI’s Amit Daryanani initiated Sandisk with an Outperform rating and a $1,200 target last week, arguing the company is tied to AI data storage, where demand is rising and supply remains tight through at least 2028. NAND flash, Sandisk’s core market, is non-volatile memory used to store data even when power is off.
There is less agreement on how much upside remains. Wells Fargo analyst Aaron Rakers raised his Sandisk target to $975 from $675 on Monday but kept an Equal Weight rating, according to MT Newswires carried by MarketScreener. The stock was already trading close to that target.
But the risk is that the story stays good while the stocks stop working. Memory is cyclical, meaning prices often rise when supply is tight and fall when producers add too much capacity; any sign that NAND, DRAM or HBM pricing is peaking could hit earnings estimates quickly. Recent concern over Google’s TurboQuant compression work also showed how fast investors can sell memory names when they think AI models may need less capacity per task, even if some analysts argued efficiency could increase overall usage.
For now, the debate is not whether AI infrastructure uses more memory. It does. The question is whether Micron and Sandisk shares already reflect too much of that future, leaving little room for a pricing wobble, a slower capex cycle or just a normal correction after a rare run.
