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AI Market · Forecast desk · Live · hardware

68%

SK hynix or Samsung states in a primary release or earnings transcript that 2027 HBM capacity is substantially committed or sold out by October 31, 2026.

Probability history

0%25%50%75%100%08-01deadline

Called at 81% on August 1, 2026. Not yet repriced. 12 days to deadline.

How the number was built

Final method: stacked-fixed-weights (resolved n=74 < 80). Each rung is an independent estimate; the final is a stacked combination.

Stated (issue date)81%
Reference class (n=37)46%
Recalibrated61%
Feature model78%
Council68%
Final68%

Drivers

  • Reference class qtype:disclosure runs 0.46 (n=37) vs stated 0.81.
  • Hierarchical calibration moves stated 0.81 to 0.61 (lens hardware, kappa_stated=80.0, kappa_lens=200.0).
  • Feature model at 0.78: conjuncts=1, named disclosure=True, horizon=91d.
  • Council of 5 at 0.68.

Cautions

  • all 5 votes came from one vendor (openai); extremization disabled, persona diversity only
  • 5 cited URL(s) failed verification and were dropped.

Council

5 personas on one model (openai/gpt-5.6-sol); other vendors were unavailable this run, so read this as one model's persona-averaged view, aggregated by log odds mean without extremization.

68%

grid and power economist · openai/gpt-5.6-sol

Both manufacturers historically publish third-quarter results near the deadline, providing a plausible disclosure event. Strong AI accelerator demand and lengthy HBM qualification and capacity-planning cycles make meaningful 2027 allocation likely, with SK hynix the more likely issuer to characterize future output as sold out or committed. However, the rule is wording-sensitive: statements about negotiations, demand visibility, or expected shipments do not qualify. Samsung may also avoid broad commitment language while product qualifications and pricing remain unsettled. With only 12 days left, a qualifying Q3 release is the principal remaining path.

74%

semiconductor supply chain analyst · openai/gpt-5.6-sol

SK hynix is the likelier trigger: it has historically used sold-out language when the next calendar year’s HBM allocation is largely covered, and late-October earnings fall before the deadline. HBM4 qualification, long packaging lead times, and continued accelerator demand make substantial 2027 commitments plausible. Samsung provides a second opportunity but usually uses more guarded wording. The main risk is documentary: either company may describe strong demand, customer discussions, or supply agreements without explicitly saying “sold out” or “substantially committed,” which would miss under the literal rule.

68%

capital markets credit analyst · openai/gpt-5.6-sol

The deadline likely captures both companies’ third-quarter reporting windows, creating credible disclosure opportunities. Strong AI hardware demand and rapidly expanding supplier obligations support early HBM reservations, while SK hynix has historically used explicit sold-out language more readily than Samsung. However, the rule requires a primary release explicitly covering 2027 capacity; comments about negotiations, demand visibility, or customer qualifications fail. Ongoing capacity additions and Samsung’s less specific disclosure style materially reduce the odds versus the forecaster’s 0.81.

64%

superforecaster statistician · openai/gpt-5.6-sol

Base rate: 0.461 for disclosure questions, with the hardware class higher at 0.594. Regular late-October earnings cadence and two eligible issuers raise the chance that at least one primary release addresses 2027 HBM allocation. Strong downstream AI-demand indicators also make substantial forward commitment plausible. However, resolution requires unusually definitive “sold out” or “substantially committed” language by a hard date; discussion of demand, qualification, or negotiations fails. The forecaster’s 0.8–0.9 calibration bin realized only 0.600, supporting a material discount from 0.81.

68%

geopolitics regulation analyst · openai/gpt-5.6-sol

Both companies normally report third-quarter results in late October, creating a strong chance of a qualifying primary document before the cutoff. SK hynix is the stronger leg because HBM supply is allocated with long lead times and AI-hardware demand remains strong. However, the strict wording creates material risk: an issuer could describe robust 2027 demand, customer discussions, or planned supply expansion without saying capacity is “sold out” or “substantially committed.” Samsung may also avoid commitment language because of product-mix and qualification uncertainty. The prior 0.81 therefore appears somewhat aggressive.

Evidence the engine used

direct · undated

SK hynix Newsroom

Cited by grid-and-power-economist: Both manufacturers historically publish third-quarter results near the deadline, providing a plausible disclosure event. Strong AI accelerator demand and lengthy HBM qualification and capacity-planning cycles make meaningful 2027 allocation likely, with SK hynix th