Key Takeaways:
Memory stocks led a broad semiconductor selloff Wednesday as the NASDAQ opened the second half of 2026 lower, with Micron Technology dropping 8%, SanDisk slumping 10% and Western Digital falling 7%.
Micron Technology Inc. shares fell 8% to $1,061.44 in morning trading, while SanDisk Corp. slid 10% to $2,051.10 and Western Digital Corp. declined 7% to $595.81. The Roundhill Memory ETF, which holds all three names alongside international makers Samsung, SK Hynix and Kioxia, also traded lower. The NASDAQ 100 was off 1% at midmorning after climbing 20% year to date through June 30.
"The magnitude of the DRAM price increase over four years — 700% — is forcing large buyers to rethink their memory architecture," Citrini Research said in a note Wednesday, warning that hyperscalers and Nvidia server partners may adopt memory compression techniques that reduce demand. A California class action filed last week added to the overhang, alleging Samsung, SK Hynix and Micron illegally coordinated to restrict DRAM supply and inflate prices. The companies have not commented on the lawsuit.
The selloff marks a sharp reversal for a sector that delivered one of the most extraordinary first halves in semiconductor history. Micron had rallied 305% year to date through Tuesday, SanDisk surged 858% and Western Digital gained 271%. Those gains were built on a memory supercycle fueled by AI demand for high-bandwidth memory, with Micron reporting fiscal third-quarter revenue of $41.5 billion, up 346% from a year earlier, and guiding for $50 billion in the current quarter. Gross margins expanded to 84.6% from 37.7% a year ago.
What's Driving the Pullback
No single catalyst triggered Wednesday's decline. Several forces converged: institutional rebalancing at the start of the second half after enormous first-half runs, a hawkish tilt from the Federal Reserve and a broader rotation out of extended tech names. Cleveland Fed President Beth Hammack suggested the U.S. may need higher interest rates, while new Fed Chair Kevin Warsh offered no dovish relief during a speech at the European Central Bank's policy forum in Portugal.
The macro headwinds hit the semiconductor complex broadly, with Advanced Micro Devices and wafer-fab equipment makers also declining. Memory names took the sharpest hits because of their extreme year-to-date appreciation and the two memory-specific overhangs: the DRAM lawsuit and Citrini's demand warning.
The Bull Case Remains Intact
The longer-term thesis for memory stocks isn't broken by a single session. Micron Chief Executive Officer Sanjay Mehrotra has said supply will remain tight "beyond calendar 2026," and the company plans to invest roughly $200 billion in manufacturing and research, including new fabs in Boise, Idaho and Syracuse, New York. HBM4 is in volume production for Nvidia's Vera Rubin platform, and Micron has signed its first five-year strategic customer agreement.
Of the 44 analysts covering Micron, 39 rate it Buy or Strong Buy, with a consensus price target of $1,410.45 — implying roughly 33% upside from Wednesday's level. The stock now sits 15% below its June 25 record high of $1,255.
For investors, the risk-reward has shifted after a 4x run. Micron trades at a trailing price-to-earnings multiple that reflects peak-cycle margins, and the bear case — a cyclical memory downturn, hyperscaler efficiency gains and exploding capital expenditure above $25 billion in fiscal 2026 — points to a potential 36% drawdown to $737.55, according to 24/7 Wall St.'s model. The next catalysts are the June jobs report later this week and SanDisk and Western Digital's fiscal fourth-quarter results.
This article is for informational purposes only and does not constitute investment advice.
