Market Context
DDR5 / Mobile Trend
↑ Still Edging Up
DDR5 16Gb spot averaged $58.90 on October 9 (DRAMeXchange), up 1.6% from $58.00 a week earlier. Nanya has reportedly told customers of contract increases of up to 20%, so contract buyers should expect Q4 settlements well above the spot drift.
DDR4 Spot Trend
■ Record Streak Pauses
TrendForce’s weekly DDR4 1Gx8 read was unchanged at $46.32 on October 6 as Golden Week thinned trading, and DRAMeXchange’s session average slipped 0.46% to $46.19 on October 9. A pause at record levels, not a turn: Nanya says it can meet only 50–60% of demand.
HBM Capacity
Sold Into 2027
Samsung has reportedly locked 75–80% of its 2027 memory output under long-term agreements, with 20–25% prepayments becoming common. KB Securities sees a 12-high HBM4 stack rising to about $1,300 in 2027 from about $600. Buyers without contracts are now negotiating for leftovers.
Supplier Sentiment
■ Record Profits, Falling Stocks
Samsung guided to a record ₩107.4T Q3 operating profit, yet its shares fell to ₩262,000 from ₩276,000 and Micron dropped 4.3% on the week. Investors are trading the rate of change, not the level, and the AI-financing headlines weighed on the whole SOX (−4.3%).
Price Trends$/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 Oct 5
DDR5 · 16Gb · 4800/5600 MT/s
$29.45/GB ($58.90)
▲ Up WoW
Prior week: $29.00
DRAMeXchange session average $58.90 on Oct 9 (+0.40% session; daily range $44.00–$70.00), up 1.6% from $58.00 on Oct 2. A new high, with the pace picking up slightly after Golden Week.
DDR5 · 32Gb · 6400 MT/s
$29.66/GB ($118.65)
▲ DM Estimate, Higher
Prior: $29.21
DM estimate re-anchored to this week’s sourced DDR5 16Gb print ($58.90) at the same ~2.01x density premium ($118.65 chip). There is still no discrete 32Gb tracker print, so treat it as directional.
DDR4 · 8Gb (1Gx8) · 3200 MT/s
$46.19/GB ($46.19)
▼ Down WoW
Prior week: $46.32
DRAMeXchange session average $46.19 on Oct 9 (−0.46% session). TrendForce’s weekly read was flat at $46.32 on Oct 6, so the four-week record streak has paused in holiday-thin trading rather than reversed.
DDR4 · 16Gb (2Gx8) · 3200 MT/s
$41.82/GB ($83.64)
▼ Rebased to DRAMeXchange
Prior: $46.01 (carried estimate)
Now sourced: DRAMeXchange session average $83.64 on Oct 9 (flat on the session). This replaces a carried-forward $92.02 that had no fresh print, so the drop is a basis correction, not a market move. It matches the ~$82 tracker read flagged last week.
LPDDR5X · Mobile · Q3 Contract
~$26.50/GB
■ Q4 Not Yet Printed
Prior: ~$26.50/GB
Q3 contract value carried forward; no fresh tracker read this week, and Q4 settlements are not yet published. TrendForce’s 4Q26 outlook still has mobile DRAM rising, and Nanya’s up-to-20% notices point the same way.
HBM4 · 36GB 12-High Stack
~$600/stack
▲ Re-anchored, Allocation Only
Prior: ~$550 (DM estimate)
Now anchored to KB Securities’ ~$600 estimate for a 2026 12-high 36GB HBM4 stack (via Korea Herald, Oct 7), replacing the ~$550 DM estimate. KB sees ~$1,300 in 2027 on reported Samsung asking prices; these are not disclosed contract prices.
Supplier IntelSamsung · SK Hynix · Micron
S
Samsung
KRX: 005930
Guides Q3 operating profit to a record ₩107.4T (~$80B), up about 783%, on revenue of about ₩195T; it is the first ₩100T quarter, yet the stock fell to ₩262,000 as the print came in slightly below the highest expectations
Has reportedly locked 75–80% of its 2027 memory output under long-term agreements with Nvidia, Google, Microsoft and others, with 20–25% prepayments and take-or-pay terms becoming common
Its 12-high HBM4E has reportedly passed Nvidia qualification, and it is using HBM4 supply in talks with AMD that include foundry work, turning memory scarcity into leverage for its logic business
H
SK Hynix
KRX: 000660
Chairman Chey Tae-won says SK will build its Gwangju fabs “as quickly as possible”; SK Hynix and Samsung each plan about ₩400T for two fabs there, but no start date is set and power and water are still unresolved
Pushes 16-layer HBM4 alongside Samsung, but Counterpoint expects most Nvidia Rubin products to stay on 12-layer stacks, which lowers the near-term yield risk of a 16-high ramp
Its Solidigm unit reportedly plans a new Taiwan site for data-center SSDs with shipments starting in December, putting enterprise-SSD capacity closer to the server ODMs
M
Micron
NASDAQ: MU
Settles all litigation with Netlist: a five-year license to Netlist’s DIMM and HBM patents for $30M a quarter ($600M total through Q3 2031), which removes the ITC exclusion risk flagged two weeks ago
Its Taoyuan union secures the right to strike (88.3% of members), seeking 15% of operating profit for bonuses; Taichung mediation follows on Oct 22, in what could be Taiwan’s first chip-industry strike
Shares fall 4.3% on the week to $1,029 even after Samsung’s record print, as the market prices peak growth rates rather than peak demand
IndustryBroader DRAM & Memory News
Pricing
Nanya reportedly notifies customers of DRAM contract increases of up to 20%, with TrendForce seeing its Q4 ASP up about 10%; it can meet only 50–60% of customer demand
The second-tier suppliers that serve legacy and consumer DRAM are now raising prices faster than TrendForce’s 10–15% Q4 contract forecast. Industrial and consumer buyers outside long-term agreements are carrying the heaviest increases.
HBM / AI Demand
KB Securities expects Samsung’s HBM prices to more than double in 2027, with a 12-high HBM4 stack going to about $1,300 from about $600 and HBM4 reaching about 80% of its HBM revenue
If these asking prices stick, HBM becomes more profitable than conventional DRAM again, reversing Bernstein’s view two weeks ago. For accelerator makers, memory cost per GPU roughly doubles in a year, which will show up in Rubin pricing and hyperscaler capex.
End-Market Demand
Worldwide PC shipments fell 20.1% year on year in Q3 to 62.7M units (IDC), and Omdia puts memory at nearly 40% of PC component cost, up from about 15%; HP fell 30.9%
This is the demand destruction the memory upcycle has been building toward: consumers are not paying the higher prices. It frees some DRAM for servers, but it also means PC OEMs will push harder for DDR4 platforms and lower-capacity configurations through 2027.
Spot vs. Contract
NAND spot weakens while DRAM holds: 512Gb TLC wafers fell 2.9% to $18.83 in TrendForce’s Oct 7 update, as module houses sit on high inventory, while DRAM spot moved sideways
The two memory markets are diverging. DRAM tightness is structural (capacity moved to HBM and server), while NAND’s spot weakness reflects channel inventory. Watch whether NAND’s forecast +15–20% Q4 contract increase holds against falling spot.
Supply Chain
Tight AI-chip test capacity pushes customers into one-year-plus deals and lets Taiwan’s Sigurd raise prices, adding a test bottleneck to the HBM and CoWoS constraints
The bottleneck is moving down the back end: after packaging and optics, testing is now sold forward. Every new constraint adds lead time and cost to accelerator and HBM output, which supports suppliers’ pricing power through 2027.