Key Takeaways:
Memory chip stocks surged as much as 7.8% on Aug. 12, lifting the Philadelphia Semiconductor Index 3.3% on AI-driven memory demand.
The memory market will be "even tighter" in 2027 than this year, with structural supply constraints extending beyond next year as AI demand outpaces new capacity, Sumit Sadana, chief business officer at Micron Technology, told investors at KeyBanc's tech conference.
SK Hynix rose 7.72%, Micron gained 7.03%, SanDisk climbed 7.16%, Western Digital added 6.63%, Seagate Technology advanced 7.60% and Kioxia's ADR jumped 7.82%. Other AI hardware names followed: Nvidia rose 2.54%, Intel gained 4.10%, Lam Research added 4.76%, Marvell Technology climbed 4.94% and Lumentum advanced 6.73%.
The rally reflects a sector repricing as memory suppliers report sold-out capacity through 2027. Singapore's Temasek is weighing direct investments in SK Hynix and Samsung Electronics, viewing AI semiconductors as undervalued, according to Asia Business Daily.
Temasek Investment and Micron's Tightness Call Fuel the Move
Three forces drove the move. Temasek, Singapore's $400 billion state-owned investment company, is planning direct investments in Samsung Electronics and SK Hynix, a report from Asia Business Daily said, lifting the KOSPI overnight and rippling into U.S.-listed memory names. Micron's Sadana reinforced pricing power expectations across DRAM, NAND and HDD with his 2027 outlook. Intel Chief Executive Lip-Bu Tan also floated memory-CPU stacking and new memory architecture as the shortage deepens, noting that memory makers are reportedly sold out for the next two years.
Valuations remain restrained despite the run. SK Hynix trades at 19.51 times trailing earnings, SanDisk at 18.57 times, Western Digital at 19.03 times and Micron at 20.69 times, according to 24/7 Wall St. data. Micron's fiscal Q3 2026 revenue jumped 345.7 percent year over year, while SanDisk's Q4 FY2026 revenue rose 371.6 percent and Western Digital's advanced 43.8 percent. Western Digital's non-GAAP gross margin reached 54.4 percent last quarter, and SanDisk's GAAP gross margin hit 84.6 percent.
Broader Market Diverges as Chinese ADRs Slip
The chip rally came as U.S. July CPI rose 3.4 percent year over year, in line with expectations and down from 3.5 percent in June, easing concerns about near-term Federal Reserve tightening. Core CPI rose 2.5 percent. The Nasdaq Composite gained 0.52 percent while the Dow Jones Industrial Average slipped 0.06 percent.
Chinese ADRs faced concentrated selling, with the Nasdaq Golden Dragon China Index falling over 2 percent. WeRide plunged more than 8 percent, Tencent Music fell over 4 percent, and New Oriental, Vipshop and Bilibili each dropped more than 3 percent. Spot gold briefly topped $4,440 per ounce before settling up 1.15 percent at $4,420.07, while WTI crude fell 0.44 percent to $82.83 per barrel.
The memory rally extended into Asian markets, with South Korea's KOSPI jumping 4.8 percent and Japan's Nikkei 225 rising 1.82 percent on Aug. 13. Samsung Electronics rose 5.48 percent and SK Hynix gained 7.18 percent in Seoul, while Kioxia climbed 6.68 percent in Tokyo. Micron's fiscal Q4 2026 report, guided to $50 billion in revenue and non-GAAP EPS of $31, is the next scheduled event for the sector.
This article is for informational purposes only and does not constitute investment advice.
