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Memory Report — 2026-07-02

The memory bull case met its first real test of the cycle on July 1, as Samsung and SK Hynix shares sold off hard on peak-out jitters, even as the underlying data screamed shortage.

The tape and the fundamentals diverged sharply. South Korean semiconductor stocks were rocked on July 1, with Samsung Electronics and SK Hynix plunging over 5%, as June semiconductor exports surged 199.5% year-over-year to $44.8 billion, a record. The trigger was thin: a slight month-over-month decline in DRAM and SSD export unit prices stoked peak-out fears, while foreign investors extended their net selling streak to nine consecutive sessions. Read that carefully. A modest sequential dip in per-kilogram pricing, off a base up nearly 600% year-over-year, is the "bad news" here. Retail investors saw it differently, pouring more than ₩2.4 trillion, roughly $1.5 billion, into the two names. Brokerages largely shrugged: KB Securities and Hyundai Motor Securities maintained a long-term bullish outlook, citing the AI investment cycle and supply constraints, and recommended buying on dips.

Nothing in the supply picture argues for a top. Contract prices are still climbing. TrendForce's latest survey has conventional DRAM contract prices rising 58% to 63% quarter-over-quarter in Q2 2026, with NAND Flash up 70% to 75%. NAND's roughly 75% increase outpaces DRAM for the first time in this cycle as enterprise SSD demand refuses to let up. The structural constraint is unchanged: TrendForce expects a pronounced shortage through 2026, with new fab capacity unlikely to arrive in volume before late 2027 or 2028. New wafer lines at SK Hynix's M15X, Micron's Idaho fab, and Samsung's Pyeongtaek P5 don't move the needle on bit supply until mid-2027 into 2028.

On the technology front, Samsung kept pressing its comeback. Its reliability test yield for HBM4E has risen to over 70 percent, and the D1d DRAM process is showing favorable outcomes, per CTO Song Jai Hyuk's internal briefing, as flagged by @jukan05. Eighty percent is the mature-yield bar, so 70% signals a process stabilizing, not yet shipping. Worth watching: this same D1d is the node reportedly earmarked for HBM5 generations, and Samsung's roadmap there has drawn scrutiny.

The day's cleanest signal of structural tightness came from Micron. Micron and General Motors signed a Strategic Customer Agreement to secure long-term supply of memory and storage platforms critical to GM's vehicle production at scale. The deal gives GM long-term access to LPDRAM, NOR, and UFS NAND. The bigger tell: it's one of 16 such agreements Micron highlighted on its fiscal Q3 call, where management said these now cover about 40% of the business and could eventually reach 50%. Micron's Sumit Sadana said the agreements are non-cancelable, take-or-pay deals, meaning customers pay for committed volume whether they use it or not. That is the opposite of a market bracing for a glut.

Watch next quarter's contract settlements and whether the export-price wobble that spooked Seoul was a blip or the first crack. The multi-year setup still points one way, but for the first time this cycle, the bears found a number to point at.

July 2nd, 2026

Memory Report — 2026-07-02

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