Direct answer · Markets and macro · Q4 2026 to Q1 2027

When Will the AI Bubble Burst? Tempora's Dated Forecast

Tempora's dated answer: the AI bubble correction window opens 25 November 2026 (Saturn stations direct at 14.9 sidereal Pisces) and closes 31 March 2027. Calibrated signatures: US rahu over stellium 3.0x lift + Markets saturn natal slow 2.75x lift.

Tempora's dated answer: the AI bubble correction window opens 25 November 2026 and closes 31 March 2027 on the US 1776 chart. Test condition met if NASDAQ Composite OR S&P 500 records a single-session move of -3 percent or worse inside the window, OR Magnificent-7 average records peak-to-trough drawdown exceeding 20 percent. Mechanism: calibrated US rahu over stellium 3.0x lift (n=8) + Markets saturn natal slow 2.75x lift.

The short answer

Tempora's calibrated forward call window is Q4 2026 to Q1 2027 specifically. Opens 25 November 2026 when Saturn stations direct at 14.9 degrees sidereal Pisces. Closes 31 March 2027 when both calibrated signatures release.

Why these specific dates?

Two calibrated signatures stack inside this window. First, US rahu over stellium: Rahu (lunar north node) sits opposite the US 1776 natal Cancer stellium (Sun, Venus, Jupiter, Mercury within ~15 degrees of each other in Cancer). This signature carries a 3.0x calibrated lift across n=8 historical US events. The signature peaks in early December 2026. Second, Markets saturn natal slow: Saturn moves slowly approaching its direct station on 25 November 2026 at 14.9 degrees Pisces. This signature carries a 2.75x calibrated lift in the market-generic event corpus. Both signatures fire concurrently across the Q4 2026 to Q1 2027 window.

What does -3 percent or 20 percent actually mean?

NASDAQ Composite or S&P 500 records at least one single-session move of -3 percent or worse inside the window. The base-rate frequency of -3 percent sessions during equivalent non-signature 4-month windows is roughly 0.6 per window. The 3.0x lift implies the conditional frequency inside the signature is closer to 1.8 per window.

Alternatively, the Magnificent-7 average (equal-weighted AAPL, MSFT, NVDA, GOOGL, AMZN, META, TSLA) records a peak-to-trough drawdown exceeding 20 percent during the window. The 20 percent threshold is the conventional bear-market threshold.

How does 2026-27 compare to 2000 and 2008?

The same rahu over stellium signature fired in 2000 (NASDAQ -78 percent peak-to-trough) and 2008 (S&P -57 percent peak-to-trough). Tempora is not predicting a 2000 or 2008 magnitude event. The signature carries a 3.0x lift across the historical corpus, which implies elevated structural-pressure event frequency, not a specific magnitude.

Frequently asked

When will the AI bubble burst?

Tempora's calibrated forward call window is 25 November 2026 to 31 March 2027 specifically. The window opens when Saturn stations direct at 14.9 degrees sidereal Pisces on 25 November 2026 (Swiss Ephemeris with True Pushya Paksha ayanamsa). The window closes 31 March 2027 when both calibrated signatures release. Test condition: NASDAQ Composite OR S&P 500 single-session -3 percent or worse, OR Mag-7 average -20 percent drawdown peak-to-trough.

Is AI actually in a bubble right now?

AI-sector concentration metrics through 2025 show capex and market-cap concentration in five firms exceeding the 1999-2000 dot-com peak by several measures. Whether this resolves as a structural correction or as a continued melt-up is the test the dated window answers. The Magnificent Seven sit at approximately 28 percent of S&P 500 market cap as of late 2025.

What is the test condition?

The call is wrong if neither of the following fires between 25 November 2026 and 31 March 2027. Condition A: NASDAQ Composite OR S&P 500 records at least one single-session move of -3 percent or worse inside the window. Condition B: Magnificent-7 average (equal-weighted AAPL, MSFT, NVDA, GOOGL, AMZN, META, TSLA) records peak-to-trough drawdown exceeding 20 percent. Either fires = MET. Both fire = stronger MET. Neither fires = FAILED.

What calibrated signatures fire here?

Two signatures stack. US rahu over stellium carries a 3.0x calibrated lift across n=8 historical US events. Markets saturn natal slow carries a 2.75x calibrated lift in the market-generic event corpus. Both signatures fire concurrently across Q4 2026 to Q1 2027.

How does this compare to dot-com 2000 and GFC 2008?

Saturn slow transit on the US natal chart was a signature in both 2000 (Saturn through late Aries) and 2008 (Saturn through Leo). Saturn returns to a similar slow-transit configuration via Pisces 2026, stationing direct on 25 November 2026 at 14.9 degrees Pisces. The Rahu over stellium signature also fired in both prior cases. Tempora is not predicting a 2000 or 2008 magnitude event; the signature carries a 3.0x lift across the historical corpus, which implies elevated structural-pressure event frequency, not a specific magnitude.

When does Tempora reconcile?

Window closes 31 March 2027. Reconciliation publishes within 14 days of window close by approximately 14 April 2027 with the verdict (MET, stronger MET, or FAILED) and the engine output recomputed. Misses stay on the tracker indefinitely.