WEEK ENDING SATURDAY, OCTOBER 3, 2026
Mixed (+8): Anthropic pre-Thanksgiving, OpenAI private bridge, second Lipper inflow
How bubbly: 244/400. CAPE 41.38 keeps Overvaluation in the rare ≥40 regime; Anthropic’s Nov 9 marketing / pre-Thanksgiving path lifts Issuance while OpenAI stays off 2026 and shops a ~$30B private bridge at ~$1.4T. Beliefs stay mixed on safety language versus the racing IPO window; a second Lipper inflow week firms Inflows without a new-entrant stampede. Mixed.
III with megas 60without SpaceX·Anthropic·OpenAI 54
Soft +8 from Sep 26 (236), mostly Issuance: Anthropic’s Nov 9 marketing / pre-Thanksgiving path lifts III; CAPE stays ≥40; beliefs mixed; second Lipper inflow firms IV without a new-entrant stampede.
Overvaluation
- ADVANCE
Shiller CAPE still north of 40 (Multpl 41.38 Fri Oct 2).
Sources - ADVANCE
Anthropic ~$1.8T–$2T ask beside a $518B compute bill — Bloomberg mid-November path vs May $965B Series H; Reuters prospectus read puts ~$518B infrastructure commitments and Broadcom up to $42B TPU-lease financing.
Sources
Bubble beliefs
- MIXED
Safety talk and a racing IPO share the stage — Anthropic existential-risk prospectus language beside a firm pre-Thanksgiving marketing window; Altman keeps OpenAI off 2026 while shopping private capital.
Sources - CONTEXT
New Owenomics: The quants of Babylon — October Acadian note is systematic-investing / Babylonian-data; Sep IPOs of doom remains the Anthropic-frame Lamont piece.
Issuance
- ADVANCE
Anthropic: marketing week of Nov 9 · trade before Thanksgiving — Bloomberg Oct 1; plans can change; Oct 14 SF investor meetings on prep calendar; confidential S-1 still not on public EDGAR.
Sources - MIXED
OpenAI: ~$30B private bridge at ~$1.4T, not a 2026 IPO — Bloomberg/TechCrunch bridge financing after Altman took 2026 off the board. Private mega capital without a public listing date.
Sources - ADVANCE
Dangote Refinery IPO still open through Oct 13 — Africa’s largest-ever share sale keeps the non-U.S. mega secondary track warm.
Sources
Inflows
- ADVANCE
U.S. equity funds: ~$20.6B inflows (week through Sep 30) — Second straight Lipper U.S. equity inflow week after ~+$37.5B the week before — large-caps ~+$19.3B; sector tech sold ~$3.79B. Lipper remains digest color, not the IV spine.
Sources - MIXED
Still no clear new-entrant stampede — Two inflow weeks end the September redemption streak without a cab-driver stampede. IV firms off the floor; it does not max.
Horsemen Index — How bubbly are we? = I + II + III + IV (max 400). Equal-weight Lamont-hybrid; no fancy composite. Chart overall series plots Σ÷4 on the shared 0–100 axis beside the four dials. III′ (issuanceWithoutMegas) charts the non-mega track so SpaceX·Anthropic·OpenAI/≥$10B megas cannot fully hijack the main III dial. Editorial judgment—not a vendor index.
CONTEXT OVER TIME
See this week on the Horsemen Index chart
Toggle I–IV and the overall “How bubbly are we?” series (Σ÷4 on the shared 0–100 axis) to compare week ending 2026-10-03 against the full archive series.
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