October's dates held when someone was selling on them
October was the ledger's worst month. Sixteen calls settled, ten correct and six wrong, for a of 0.256, slightly worse than the 0.25 that a coin flip earns on every call. September's cohort scored 0.240. The cumulative book moved from 0.207 across 16 calls to 0.232 across 32. Lower is better, and the direction is the wrong one. SourcesA
The misses share a shape. September's wrap concluded that we had treated intentions as constraints, trusting a lab's restraint and an issuer's calendar. In October we overcorrected. We bet that a second lab would not publish its own incident report, and Anthropic published one five days later. We bet that DeepSeek's round would miss its own October target, and it closed at about 100 billion yuan. We bet that Anthropic's public would slip past Halloween, and it reached on October 26th. Four of the six losses were bets that someone would wait. SourcesAAB
The wins point at a rule the book should have used. Mistral, StepFun and Reflection each named a month for , and all three shipped inside it; so did MiniMax. Google opened Gemini 4 Argon to paying developers on October 13th, without the vetting gate. The two dated calls that failed rested on schedules the vendor never committed to: our own deadline for a Microsoft fix to a Copilot flaw, and a Huawei hardware kit date relayed through a DeepSeek README. A date held when the party that set it was selling something on it. SourcesAAA
What the month did
The weeklies tell one story in four steps. On October 4th the labs' safety promises were voluntary and their money promises non-cancelable. By October 11th every frontier lab had an incident on record, and Firmus pulled the first AI infrastructure that found no price. On October 18th regulators and bond buyers both asked to read the books. On October 25th the answers came back as lawsuits and discounts: Texas sued OpenAI over intrusions, and OpenAI cut its funding by $150 billion mid-raise. SourcesC
The last week sharpened both halves. Anthropic's public S-1 reported fiscal 2025 revenue of $4.585 billion, and Blackstone now expects its credit to be rated after listing. OpenAI cut the round itself to about $20 billion from $30 billion, with roughly $11 billion committed. S&P moved Meta's after its first quarter of negative , and the Nasdaq lost about 5% in October, its worst month since March 2025. Memory makers went the other way: SK hynix reported an 80% operating margin and says its DRAM and HBM are effectively sold out to 2029. SourcesABBBB
The month's verdict: disclosure stopped being optional in practice before it became mandatory in law, and the cost of AI capital rose for everyone who does not make memory. The demand evidence held. Every operator still reports capacity sold ahead; the borrowing that sits between the order book and the building is what repriced. SourcesCB
What to watch in November
Eight open calls resolve this month. The first is Kimi K3.1 Pro's on November 4th, another open-weights date set by the lab selling on it, which on October's record is the safe side. SB Energy has to price a US IPO by November 30th into a market where no has priced since Firmus withdrew, and that call looks weaker now than at 60% in August. Agility's vote is November 2nd, with Nasdaq trading as AGLT expected November 5th. SourcesAA
Sources
See the complete source register and the call-by-call reckoning.