Signal Heat Map — all-time (16 signals)
BIS (Bank for International Settlements)
0all-time
AI boom scale and speed warrant caution; capex outpacing cash flow; opaque circular financing
Watching: new BIS publication, AI capex financing, circular financing, credit spreads widening
Quote: “Should the returns to AI disappoint, a pullback in investment could turn today's capital expenditure boom into a bust.”IMF (International Monetary Fund)
0all-time
Stretched equity valuations; 'disorderly correction' risk has risen
Watching: new IMF WEO chapter, spillover report, disorderly correction language
Quote: “Stretched market valuations had increased the probability of a disorderly correction.”Bank of England FPC
0all-time
Sharp market correction if AI excitement fades or adoption disappoints
Watching: FPC statement, Financial Stability Report, AI capability disappointment
Quote: “A sharp market correction might materialise should artificial intelligence excitement diminish.”Banque de France
0all-time
Concentration of money in and between AI companies is a risk
Watching: BdF financial stability report, AI concentration
Quote: “Concentration of money in and between AI companies.”Michael Burry (Scion / Cassandra Unchained)
3all-time
AI bubble pops in 2027; hyperscalers overstate profits by extending server/GPU useful lives
Watching: new Substack post, depreciation schedule change, GPU write-down, capex cut
Quote: “I'm more confident than ever before. The bubble in AI may burst sooner than later.”Jeremy Grantham (GMO)
3all-time
We are in a US stock market and AI bubble; a major correction will eventually follow
Watching: new GMO letter, speculative stocks collapsing, quality outperformance
Quote: “We are in a U.S. stock market and AI bubble, and that at some stage in the future, most investors will be nursing very large losses.”Ray Dalio
0all-time
Bubble signals at ~80% of 1929 and 2000 extremes; pop needs a trigger (long rates, mega-IPOs)
Watching: rising long rates, SpaceX IPO, Anthropic IPO, OpenAI IPO, Dalio new public statement
Quote: “Classic signs that we're in [a bubble]. Wealth is not the same as money.”JPMorgan Cembalest (Eye on the Market)
0all-time
42 AI companies drove 65-75% of S&P500 earnings since 2022; concentration risk; possible Metaverse moment
Watching: capex guidance cut, earnings concentration narrows, hyperscaler underperformance continues
Quote: “A broader group of 42 AI related companies has generated 65%-75% of S&P 500 earnings, profits and capital spending since ChatGPT's launch in November 2022.”JPMorgan Hunter (Technical Strategy)
0all-time
SOX +87% YTD while Microsoft -18% = same divergence as 1999-2000
Watching: SOX index, MSFT, META, AMZN, GOOGL price action, SOX vs Mag-7 divergence
Quote: “The growing divergence that exists now and the outright negative hyperscalers price performance are reminiscent of the 1999-2000 dynamic.”Goldman Sachs
0all-time
AI now propping up S&P earnings growth; fragile dependency on hyperscaler capex
Watching: S&P 500 earnings, hyperscaler capex, tech concentration
Quote: “AI spending is propping up S&P 500 earnings growth, but that same statistic reveals a fragile dependency on a handful of buyers.”Morgan Stanley
0all-time
AI capex rising $800B (2026) → $1.1T (2027); cycle still expanding; shift from infra to software
Watching: AI capex revisions, software capex, hyperscaler spending guidance
Quote: “Roughly $800 billion in AI-related capital expenditures in 2026, rising to $1.1 trillion in 2027.”Hyperscaler capex cut
1all-time
Any of MSFT, GOOGL, META, AMZN cuts AI capex guidance or shortens useful lives in 10-Q
Watched in: SEC 8-K, earnings call transcript, 10-Q filingMega-IPO filing (SpaceX / Anthropic / OpenAI)
3all-time
Any of SpaceX, Anthropic, OpenAI files S-1 or announces IPO
Watched in: SEC EDGAR, FT, Bloomberg, ReutersNew central bank AI warning
2all-time
BIS, IMF, BoE, BdF, ECB, Fed publishes a new AI-bubble warning (publication, speech, or report)
Watched in: bis.org, imf.org, bankofengland.co.uk, banque-france.fr10Y Treasury move > 25bp in 7 days
0all-time
US 10-year yield moves more than 25 basis points in a 7-day window
Watched in: FRED DGS10, Treasury.govSOX / Mag-7 divergence flip
0all-time
Philadelphia Semiconductor Index underperforms the Magnificent-7 basket by >5% over 5 days, after a year of outperformance
Watched in: SOX index, MAGS ETF, Mag-7 components
Hot (12+ all-time)
Warm (6-11)
Cool (1-5)
Quiet (0)
Predictions & Sources (11)
| Source | Claim | Date | Status |
|---|---|---|---|
| BIS (Bank for International Settlements) | AI boom scale and speed warrant caution; capex outpacing cash flow; opaque circular financing | Annual Economic Report 2026 | open |
| IMF (International Monetary Fund) | Stretched equity valuations; 'disorderly correction' risk has risen | Oct 2025 statement | open |
| Bank of England FPC | Sharp market correction if AI excitement fades or adoption disappoints | Oct 2025 FPC minutes | open |
| Banque de France | Concentration of money in and between AI companies is a risk | Dec 2025 report | open |
| Michael Burry (Scion / Cassandra Unchained) | AI bubble pops in 2027; hyperscalers overstate profits by extending server/GPU useful lives | Substack post | open |
| Jeremy Grantham (GMO) | We are in a US stock market and AI bubble; a major correction will eventually follow | GMO January 2026 letter | open |
| Ray Dalio | Bubble signals at ~80% of 1929 and 2000 extremes; pop needs a trigger (long rates, mega-IPOs) | Diary of a CEO podcast | open |
| JPMorgan Cembalest (Eye on the Market) | 42 AI companies drove 65-75% of S&P500 earnings since 2022; concentration risk; possible Metaverse moment | 2026 Outlook: Smothering Heights | open |
| JPMorgan Hunter (Technical Strategy) | SOX +87% YTD while Microsoft -18% = same divergence as 1999-2000 | TheStreet, Aug 2026 note | open |
| Goldman Sachs | AI now propping up S&P earnings growth; fragile dependency on hyperscaler capex | Sep 2026 report | open |
| Morgan Stanley | AI capex rising $800B (2026) → $1.1T (2027); cycle still expanding; shift from infra to software | Sep 2026 outlook | open |
Triggers Armed (5)
| Trigger | What to watch | Source feeds |
|---|---|---|
| Hyperscaler capex cut high | Any of MSFT, GOOGL, META, AMZN cuts AI capex guidance or shortens useful lives in 10-Q | |
| Mega-IPO filing (SpaceX / Anthropic / OpenAI) high | Any of SpaceX, Anthropic, OpenAI files S-1 or announces IPO | |
| New central bank AI warning medium | BIS, IMF, BoE, BdF, ECB, Fed publishes a new AI-bubble warning (publication, speech, or report) | |
| 10Y Treasury move > 25bp in 7 days medium | US 10-year yield moves more than 25 basis points in a 7-day window | |
| SOX / Mag-7 divergence flip high | Philadelphia Semiconductor Index underperforms the Magnificent-7 basket by >5% over 5 days, after a year of outperformance |
Recent Events
- SOX vs Mag-7: divergence beginning, no clean flip yetNvidia pulled back from $243 to ~$229 (-5.4%); Broadcom -25% since Jun 2; Oracle -40% since Jun 2. Yet NVDA forward-EPS revisions were +30% (vs Broadcom +20%, Oracle +14%). Mixed picture: NVDA holding, AVGO/ORCL slammed — not a clean SOX vs Mag-7 flip. Trigger status: NOT YET TRIGGERED.
- 10Y close 5.244% on Oct 9 — NOT a trigger fire10Y closed Fri Oct 9, 2026 at 5.244%, up ~+13bp in 7 sessions (Oct 1 5.237 → Oct 9 5.244). Up 41bp from Sep 9 (4.837%) but weekly +~13bp is below the 25bp/7-day trigger threshold. YTD the long end has done the heavy lifting: real yield +45bp in one month. Trigger status: NOT YET TRIGGERED.
- RBA Oct 1 Financial Stability Review: hyperscaler SPV obligations $1-1.5T; 20-30y debt vs short-life hardwareRBA on the same day as BIS Bulletin No 137: off-balance-sheet AI-project SPVs and vendor financing are 'becoming significant' — hyperscaler obligations estimated US$1-1.5T. Hyperscalers issuing 20-30y debt against chips and cooling systems with 'uncertain economic lives' creates a duration mismatch that would matter in a downturn.
- BIS Bulletin No 137 (Oct 1): 55.2% of AI-firm inflows come from other AI firmsFirst quantitative measurement of circular AI financing. Of all incoming investments in AI firms 2021-2025, 55.2% came from other AI firms. 46.4% of intra-AI deal value (16.1% by count) also shared a supply-chain relationship. BIS flags macro risk, supervisory opacity, and lessons from the late-1990s telecom boom.
- Cembalest Oct 8 'Califoreboding': clients carry 'sense of foreboding' on AI concentration + debtJPM Asset Management Eye on the Market #1 (Oct 8, 2026), titled 'Califoreboding': California client meetings surfaced shared concerns about Federal debt trajectories, AI-driven market concentration, cyber risk, strained private credit, and European industrial decline. Cembalest's framing: 'uneven foundations'.
- GS + MS (Oct 5): aggregate hyperscaler gross leverage 0.9x → 1.8x in 6 monthsGoldman estimates $489B of AI-related debt issued in 2026 YTD, above its 2025 forecast of $322B. MS projects ~$570B AI-related debt for full-year 2026 and >$1T hyperscaler capex in 2027. Aggregate gross leverage on the group doubled in six months.
- GS (Oct 8): hyperscaler AI capex creates $230B/yr revenue gapCryptobriefing summary of late-Sep GS research: $800B 2026 AI infra spend on big-five hyperscalers vs ~$300B break-even revenue need → ~$230B annual shortfall. GS credit team raised 2026 IG issuance forecast by $200B to a record $2.3T. GS Asset Management is underweight hyperscaler debt.
- Dalio Oct 6 (Bloomberg TV): investors must convert wealth into cashPer Cryptobriefing Oct 6, Dalio told Bloomberg Television the AI market 'looks like a bubble getting close to its burst point.' Cited rising interest rates and the need to turn wealth into cash as twin pressures.
- Dalio Oct 7 (Forbes Global CEO): AI 'classic bubble' nearing burst pointDalio at the Forbes Global CEO Conference told global executives that AI looks like a classic bubble nearing its bursting point because rising interest rates are forcing holders to turn paper wealth into cash. Quote: 'classic bubble' that 'is approaching bursting point'.
- Burry Oct 11: 'AI Cloud Oligopoly' + 'Consolidating a Big Short' mash-up postOct 11, 2026 Substack post: 'Short Thoughts: The AI Cloud Oligopoly, Stages Of Grief & A Flashing Bear Market Indicator; Other People's Money, Market Breadth & Market Structure, The Difference This Time.' Also separately posted on Fannie Mae / Freddie Mac / Hong Kong stocks and 'Consolidating a Big Short' trading post. Burry's framing compares today to 2000 and 2008.
- BIS-hosted conference Oct 1 2026: Lagarde + Bundesbank both raised AI financial-stability risksLagarde: 'rising importance of AI puts the system-wide view to the test' at ESRB 10th Annual Conference. Bundesbank's Köhler-Geib called for EU 'AI Airbus'. Fed's Waller warned on AI cyber risk in payments. Not new bubble calls, but fresh official concern.
- No capex cut yet — $725B hyperscaler capex reaffirmed Oct 11Oct 11 2026 earnings: MSFT + META + GOOGL + AMZN 2026 capex guidance now ~$725B. Bears Burry and Grantham still waiting on this trigger to fire. Status: NOT YET TRIGGERED.
- Trigger t2 (mega-IPO) fired earlier this year — RE-CONFIRMEDSpaceX S-1 on EDGAR (May 20, 2026, ticker SPCX Nasdaq). OpenAI confidential S-1 Jun 8 2026 at ~$852B. Anthropic S-1 at $965B valuation, targeting Oct 2026 IPO window. 3 mega-IPOs already in motion — Dalio's trigger is now real, not theoretical.
- GMO 3Q 2026 letter: supply, not demand, breaks the AI bubbleInker/Pease argue each 1% rise in equity supply = 4% market-value drop over 12 months. Anthropic + OpenAI IPOs alone = ~5% of US investable market cap. Expects ~20% relative return drag over 12-18 months.
- Burry: 2027 puts, base case moved upPer Oct 4 Cryptobriefing, Burry swapped short positions for put options on Micron and Nebius expiring in 2027, citing debt-fueled AI spending. Earlier Aug 13 post said base case 2028.
- AI Bubble Tracker v1 launched11 named sources + 5 triggers configured. Daily cron + weekly HTML rebuild armed.