Market Context
DDR5 / Mobile Trend
↑ Reaccelerating
DDR5 16Gb 4800/5600 spot climbed to $57.67 by September 26, up 6.6% since September 1’s $54.08 and still +480% YoY — snapping the mid-September “consolidation” pause. Mobile LPDDR5X contract stays firm into Q4 as OEMs brace for further cost pass-through.
DDR4 Spot Trend
↑ 1Gx8 Record, 2Gx8 Mixed
DDR4 1Gx8 3200 hit a third straight tracker high at $46.11 (Sep 26), extending the legacy squeeze. 2Gx8 stayed genuinely split: TrendForce logged orders up 1.78% in an early-September read, then “2Gx8 DDR4 prices retreat” in its September 16 update — no clean net direction yet.
HBM Capacity
HBM4 Allocation Now Set
With all three suppliers NVIDIA-certified for Vera Rubin, supply-chain analysts now estimate the allocation split at roughly SK Hynix 60–70%, Samsung 25–30%, Micron the remainder. Samsung is committing over half its 4nm foundry capacity to HBM4 base dies and plans to more than double 2027 HBM4/HBM4E output.
Supplier Sentiment
■ All Eyes On Sept 30
Micron’s fiscal Q4 print, now three days out, is the market’s swing factor — the Street models roughly $50B in revenue after a record Q3 (84.9% gross margin). SK Hynix fell 3% on September 23 despite Wolfe Research lifting its target to $250 from $200, a sign sentiment is trading more cautiously than fundamentals right now.
Price Trends$/GB — Trailing 18 Months + 18-Month Forecast
DDR5 ÷10
HBM3E ÷10
DDR4 ÷10
Shaded regions = optimistic/pessimistic confidence bands
DDR5, HBM3E and DDR4 all scaled ÷10 for legibility (actual: DDR5 ~$29/GB, HBM3E ~$32/GB, DDR4 ~$46/GB)
Sources: TrendForce, spot market indices, DM estimates
Spot PricesDRAM SKU Pricing — Week of Sep 21
DDR5 · 16Gb · 4800/5600 MT/s
$28.83/GB ($57.67)
▲ New High
Prior week: $27.80
Spot tracker (DRAMeXchange-class), Sep 26 close $57.667 (+0.29% session), up from $54.083 on Sep 1 (+6.6% MTD) and still +480% YoY. The mid-September “consolidation” read has reversed into renewed upward momentum.
DDR5 · 32Gb · 6400 MT/s
$29.05/GB ($116.17)
▲ DM Estimate, Higher
Prior: $28.00
DM estimate: re-anchored to this week’s sourced DDR5 16Gb print ($57.67) at the same ~2.01x density premium used previously ($116.17 chip); still no discrete 32Gb tracker print this week.
DDR4 · 8Gb (1Gx8) · 3200 MT/s
$46.11/GB ($46.11)
▲ New Record
Prior week: $45.54
Spot tracker (DRAMeXchange-class) close Sep 26 at $46.107 (+0.47%), a third consecutive weekly record — legacy 8Gb tightness shows no sign of easing even as 2Gx8 sends mixed signals.
DDR4 · 16Gb (2Gx8) · 3200 MT/s
$46.01/GB ($92.02)
■ Held, Mixed Signals
Prior: $46.01
TrendForce logged 2Gx8 orders up 1.78% in an early-September read, then “2Gx8 DDR4 prices retreat” in its September 16 update — genuinely mixed and no discrete comparable-basis print this week, so the chip value carries forward.
LPDDR5X · Mobile · Q3 Contract
~$26.50/GB
■ Q3 Contract Held
Prior: ~$26.50/GB
Still no fresh quarterly print. TrendForce’s 3Q26 server-DRAM contract forecast (+13–18% QoQ) and OEM warnings of 15–20% cost pass-through (Lenovo, Dell, HP, Acer, ASUS) both point to a firmer Q4 reset.
HBM4 · 36GB 12-High Stack
~$550/stack
■ Allocation Only
2026–2027 output committed
No merchant spot price (estimate, up from a prior ~$500 estimate on a firmer sourced range). NVIDIA has now certified all three suppliers for Vera Rubin, with analysts estimating SK Hynix ~60–70% share, Samsung ~25–30%, Micron the remainder.
Supplier IntelSamsung · SK Hynix · Micron
S
Samsung
KRX: 005930
Allocates more than half of its 4nm foundry capacity to HBM4 base dies as it races to scale shipments to major AI chip customers
Plans to more than double HBM4 and HBM4E output in 2027, lifting outsourced glass-carrier cleaning volume from 20,000 to 50,000 sheets a month
Holds an estimated 25–30% of NVIDIA’s Vera Rubin HBM4 allocation among the three certified suppliers, behind SK Hynix’s 60–70% share
H
SK Hynix
KRX: 000660
Fell 3% on September 23 despite Wolfe Research lifting its price target to $250 from $200, a sign sentiment is trading more cautiously than the fundamentals
Advancing 16-Hi HBM4 into customer qualification while 12-Hi HBM4 is already in normal mass production, per remarks at the Hot Chips 2026 conference
Solidigm, its NAND subsidiary, is reportedly eyeing a 2027 IPO that could value the unit near $150 billion, alongside a new AI-focused venture arm and reported U.S. NAND factory plans
M
Micron
NASDAQ: MU
Reports fiscal Q4 on September 30 — now three days out — with the Street modeling roughly $50 billion in revenue after a record Q3 (84.9% gross margin, $25.11 EPS)
Certified by NVIDIA as the third Vera Rubin HBM4 supplier alongside Samsung and SK Hynix, though holding the smallest estimated allocation share of the three
Named in Netlist’s ITC complaint (Inv. No. 337-TA-1523, filed Aug 11) alongside Supermicro, HPE, and Lenovo over four DDR5 RDIMM/MRDIMM patents — a legal overhang layered on top of the pricing story
IndustryBroader DRAM & Memory News
Pricing
DDR5 16Gb spot reaccelerates to $57.67 by September 26 (+6.6% since Sep 1), while DDR4 1Gx8 sets its third straight tracker record at $46.11 — both breaking the “consolidation” read from two weeks ago
The pause suppliers were signaling in mid-September didn’t hold. Buyers who read that consolidation as a top now have two consecutive weeks of renewed upward momentum to reprice around, on both the AI-driven (DDR5) and legacy-squeeze (DDR4) sides at once.
HBM / AI Demand
NVIDIA has now certified Samsung, SK Hynix, and Micron for Vera Rubin HBM4 supply, with allocation estimated at roughly 60–70% / 25–30% / the remainder
The qualification race is effectively over; the allocation fight is what now determines 2027 share and margin. SK Hynix’s lead position, if it holds, is worth more in captured HBM4 revenue than any single spot print this quarter.
Legal Risk
Netlist’s ITC complaint against Micron, Supermicro, HPE, and Lenovo over four DDR5 RDIMM/MRDIMM patents has been formally instituted as Investigation No. 337-TA-1523, seeking U.S. import exclusion orders
History favors Micron here — the Federal Circuit previously invalidated five earlier Netlist patents against it — but an active ITC exclusion-order threat against four named OEMs/suppliers is a real tail risk for server buyers layered directly on top of an already-tight supply picture.
End-Market Pass-Through
Lenovo, Dell, HP, Acer, and ASUS have all warned of 15–20% memory-driven cost increases, with Acer specifically flagging up to 20% PC price hikes in Q4
The shortage is now fully priced into finished-goods guidance, not just component spot sheets — confirmation that suppliers are successfully passing scarcity through the whole value chain rather than absorbing it in margin.
Sentiment Shift
SK Hynix fell 3% on September 23 despite an analyst target hike to $250, and Micron’s September 30 print — three days out — is now the market’s swing factor for the “is AI memory demand cooling?” debate
Fundamentals (record pricing, sold-out HBM, certified Vera Rubin allocation) and sentiment (a falling stock despite a raised target) are diverging. Micron’s print is the nearest catalyst that could resolve that gap in either direction.