Shares of SanDisk (NASDAQ:SNDK | SNDK Price Prediction) are down 9% to $1,168.69 Tuesday morning, extending Monday’s 11% closing drop to $1,278.23. Micron Technology (NASDAQ:MU) shares are off 7% to $839.66, and Western Digital (NASDAQ:WDC) shares are down 8% to $456.24.
The Roundhill Memory ETF (NYSEARCA:DRAM) is falling 9% to $47.74, a much deeper rout than the NASDAQ 100’s 1% decline. It’s the second straight session of sharp losses for the memory complex, with every major name in the group participating.
The move arrives without a fresh company-specific shock. SanDisk, Micron, and Western Digital shares remain up sharply in 2026, so this is a pullback within a very big run rather than a fundamentals break.
The Why: Fragile Sentiment Ahead Of Hyperscaler Earnings
UBS’s Mark Haefele has attributed this week’s chip weakness to fragile investor sentiment ahead of hyperscaler earnings, layered on the ongoing CXMT competition overhang and rotation out of crowded AI trades. That framing matters because the memory group’s recent fundamentals have been blowout, so today’s tape is momentum-driven.
Microsoft and Meta Platforms report Wednesday after the close, followed by Apple and Amazon Thursday. Any softness in AI capex commentary can hit memory hardest, since Micron’s Cloud Memory revenue reached $13.77 billion in Q3 FY2026.
Chinese memory supplier CXMT and Samsung remain the supply-side variables driving the pricing-pressure narrative. SK hynix, which reports after today’s U.S. close, adds one more overnight data point for traders to digest before Wednesday’s action.
The Fundamentals Still Look Strong
SanDisk posted Q3 FY2026 revenue of $5.95 billion, up 251% year over year (YoY), with its Datacenter segment up 645% to $1.47 billion. CEO David Goeckeler cited a “fundamental inflection point” backed by multi-year customer engagements with firm financial commitments.
Micron’s Q3 FY2026 revenue hit $41.46 billion with GAAP gross margin of 84.6%, and CEO Sanjay Mehrotra guided Q4 FY2026 revenue to $50 billion plus or minus $1 billion. Western Digital’s Q3 FY2026 revenue landed at $3.34 billion, up 45.5% YoY, with non-GAAP gross margin crossing 50% for the first time.
The valuation case appears to support the buy-the-dip side of the debate. SanDisk stock trades at a TTM P/E of 44x, Micron stock at 21x, Western Digital stock at 31x, and DRAM shares at 24x. Those multiples may seem reasonable, more or less, for a group growing their revenue at triple digits.
Buy or Sell the Plunge?
The bull case rests on durable AI memory demand. Amazon (NASDAQ:AMZN) plans to deploy more than 1 million NVIDIA (NASDAQ:NVDA) GPUs starting in 2026, and Meta Platforms (NASDAQ:META) raised its 2026 capex guide to $125 billion to $145 billion. SanDisk has signed five multi-year New Business Model agreements, and Micron’s Strategic Customer Agreements extend visibility well into 2027.
The bear case has teeth too. Polymarket’s intraday market gives Micron stock a 60% probability of closing down today, and traders cluster conviction around $840 for the week with 95% probability, implying further downside room. Options data for Micron shows a full-chain put/call ratio of 0.99, hardly signaling capitulation.
The DRAM ETF adds concentration risk to the picture. Samsung, SK Hynix (NASDAQ:SKHY), and Micron together represent 73% of the ETF’s net assets, so sector swings amplify inside the fund. Traders considering the ETF should account for that outsized volatility profile.
What to Watch
The next real catalyst is Wednesday’s after-market earnings reports from Microsoft (NASDAQ:MSFT) and Meta Platforms, followed by Apple (NASDAQ:AAPL) and Amazon on Thursday. Any AI capex signal, positive or negative, can define whether this two-day slide extends or reverses through week’s end.
Investors should consider keeping their position sizes modest here. The fundamentals justify long-term memory exposure, but sentiment can override earnings quality in the short term, especially after the magnitude of 2026 gains. A measured entry sized to survive further sentiment-driven volatility looks like the reasonable stance heading into Big Tech’s biggest reporting week.
Contact [email protected] for any questions or corrections.
Top Gaining Stocks
Top Losing Stocks