Market Context
DDR5 Market Trend
↑ Rising
TrendForce’s Aug 12 bulletin still anchors 3Q26 conventional DRAM contracts at +13–18% QoQ, but the print underneath was softer than Street models — SK Hynix delivered +30% QoQ DRAM pricing versus Goldman’s 39% estimate
DDR4 Spot Trend
↑ Record High
Mainstream DDR4 (1Gx8, 3200) spot has held at its $42.45 record since Aug 7; desktop retail DDR4 now averages $7.61/GB and DDR5 $15.27/GB across tracked kits as of mid-August
HBM Availability
Reshaping GPU Design
TrendForce reports Nvidia is testing Rubin Ultra configs with as little as 192GB of HBM4, down from up to 288GB (and 1TB HBM4E at 2025 unveiling) — the shortage is now forcing spec cuts, not just allocation queues
Supplier Outlook
Smart Money Rotating Out
Hedge-fund semiconductor Prime-book allocation has faded from a record ~24% in June to ~19%; Sandisk and Western Digital are down >30% from peaks, Seagate and Micron roughly 20% — a positioning unwind, not a fundamentals break
Price Trends$/GB — Trailing 18 Months + 18-Month Forecast
DDR5
HBM3E ÷10
DDR4
Shaded regions = optimistic/pessimistic confidence bands
HBM3E scaled ÷10 for legibility (actual: ~$30/GB)
Sources: TrendForce, spot market indices, DM estimates
Spot PricesDRAM SKU Pricing — Week of Aug 17
DDR5 · 16Gb · 4800/5600 MT/s
$2.29/GB ($4.59)
■ Flat WoW
Prior week: $4.59
Contract curve holds at TrendForce’s +13–18% QoQ pace for 3Q26, but SK Hynix’s own realized DRAM pricing landed +30% QoQ this quarter versus Goldman Sachs’ 39% estimate — the miss driving this week’s equity selloff
DDR5 · 32Gb · 6400 MT/s
$2.40/GB ($9.61)
■ Flat WoW
Prior week: $9.61
Samsung’s realized DRAM pricing came in above +40% QoQ this quarter, short of Morningstar’s 48% estimate; server RDIMM remains sold out through 2027 regardless
DDR4 · 8Gb (1Gx8) · 3200 MT/s
$5.31/GB ($42.45)
■ Holding Record
Record set Aug 7: $42.45
Mainstream DDR4 1Gx8 3200 spot has held at its $42.45 record for two-plus weeks; desktop DDR4 retail now averages $7.61/GB across 97 tracked kits as legacy supply stays structurally tight
DDR4 · 16Gb (2Gx8) · 3200 MT/s
$4.92/GB ($78.79)
■ Holding Record
Tracks the 8Gb SKU
Desktop DDR5 retail now averages $15.27/GB across 193 tracked kits — DM estimate anchored to TrendForce’s mainstream 1Gx8 spot series
LPDDR5X · Mobile · Q3 Contract
~$25.50/GB
■ Flat QoQ
Prior: ~$25.50/GB
Smartphone vendors stay conservative on procurement per TrendForce as handset prices keep absorbing higher LPDRAM costs; CXMT’s LPDDR5X entry adds a China supply wildcard
HBM4 · 36GB 12-High Stack
~$500/stack
■ Allocation Only
2026–2027 output sold out
Samsung is targeting a 47% HBM wafer-output increase — from ~170,000 to ~250,000 wafers/month by year-end — even as Nvidia reportedly tests cutting Rubin Ultra’s HBM4 allotment to conserve scarce supply. Reference: HBM3 ~$200/24GB, HBM3E ~$300/36GB
Supplier IntelSamsung · SK Hynix · Micron
S
Samsung
KRX: 005930
Targeting a 47% increase in HBM wafer output — from roughly 170,000 to 250,000 wafers per month — by the end of 2026, on top of the HBM4 yield gains reported earlier this month
New Vietnam back-end facility (An Phong, Thai Nguyen) targets a November 2027 launch for legacy DRAM/NAND packaging, freeing Cheonan and Onyang lines in Korea for HBM
Realized DRAM pricing landed above +40% QoQ this quarter, short of Morningstar’s 48% estimate — one of the pricing misses fueling the broader memory-stock selloff
H
SK Hynix
KRX: 000660
Realized DRAM pricing rose about 30% QoQ this quarter, versus Goldman Sachs’ 39% estimate — the clearest single data point behind this week’s “peak memory” stock concerns
Still holds an estimated 60–70% of Nvidia’s Vera Rubin HBM4 allocation versus Samsung’s 25–30%, the clear volume leader even as Samsung closes the yield gap
Shares remain caught in the sector-wide hedge-fund rotation, with Prime-book semiconductor allocation fading from a record ~24% in June to ~19% this month
M
Micron
NASDAQ: MU
Guided fiscal Q4 revenue to ~$50B at the midpoint, $6.55B above Street consensus, with gross margin expanding toward ~86% and DRAM revenue at a record $31.3B (+343% YoY) last quarter
In high-volume HBM4 production for Nvidia’s Vera Rubin platform, but Nvidia is reportedly testing Rubin Ultra configs with as little as 192GB of HBM4 — down from up to 288GB — forcing hyperscaler procurement replanning
Shares still roughly 20% off their peak despite the blowout guidance — “the smart money is moving on,” per MoneyFlows’ Alec Young — while China’s CXMT keeps absorbing legacy DRAM growth at 6.7% share
IndustryBroader DRAM & Memory News
HBM Architecture
TrendForce reports Nvidia is testing Rubin Ultra configurations with as little as 192GB of HBM4, down from up to 288GB and far below the 1TB of HBM4E floated at the 2025 unveiling
This is a different kind of shortage signal than allocation queues or price hikes — it’s the industry’s most important AI accelerator being redesigned around what memory suppliers can actually deliver. If Nvidia has to spec down, every downstream hyperscaler build plan gets replanned with it.
Stocks vs. Fundamentals
Hedge-fund semiconductor Prime-book allocation has faded from a record ~24% in June to ~19%; Sandisk and Western Digital are down more than 30% from their highs, Seagate and Micron roughly 20%
“The smart money is moving on,” per MoneyFlows’ Alec Young — this is a sharper read than last week’s generic bear-market framing: it’s a measured positioning unwind after semis briefly became the most crowded trade on the Prime book, not evidence the AI memory thesis is breaking.
Pricing
SK Hynix realized DRAM pricing of +30% QoQ missed Goldman Sachs’ 39% estimate, and Samsung’s +40%+ came in under Morningstar’s 48% forecast this quarter
Two of three majors have now printed pricing that undershot Street models even as absolute increases stay historic. Micron reports next, and its DRAM print will be the tiebreaker on whether this is a one-quarter blip or the start of the “peak memory” thesis analysts are debating.
Capacity & Competition
China’s CXMT holds 6.7% of the global DRAM market but captured 11.3% of the industry’s 2026 growth; capacity is set to expand from 280,000 to 350,000 wafers/month by year-end and 550,000 by 2028
CXMT is growing nearly twice as fast as its share implies, precisely because the three majors keep redirecting wafers toward HBM. Nomura sees CXMT reaching 18% share by 2028 — the commodity-DRAM ceding is a direct, measurable consequence of this week’s HBM-capacity headlines, not a separate story.
Capacity Playbook
Samsung is targeting a 47% HBM wafer-output increase — roughly 170,000 to 250,000 wafers/month by year-end — while its new Vietnam back-end facility (targeting a November 2027 launch) frees Korean lines for HBM
This is the concrete capacity math behind last week’s Vietnam headline: Samsung isn’t just chasing HBM4 yield, it’s physically relocating legacy packaging offshore to convert domestic fab floor space into HBM output, the same scarce resource Nvidia is now designing around.