Three Polymarket numbers. One story.
The standard read: these numbers are increasing, so the regime gets more fragile over time. The succession bought stability — but only temporarily. Long-run forces grind it down.
That read misses something. The numbers don't describe a linear deterioration. They describe a hazard function — the month-by-month probability of collapse, given survival to that point. And that function has a shape. April is its peak.
Given today is March 9, "regime fall by March 31" is a 22-day window. "By April 30" is 52 days. "By June 30" is 113 days. To find the conditional monthly hazard — the probability of collapse in each period given survival to the start of that period — you divide the incremental probability by the surviving probability:
The daily hazard rises from March to April (0.39% to 0.43%), then falls sharply into May–June (0.25%). The peak-risk window is April.
This is counterintuitive if you think succession = stability. The regime just named a new Supreme Leader. Institutions pledged within 24 hours. Polymarket's Mojtaba contract went to 99.85%. Everything looks like resolved uncertainty. But the regime-fall hazard peaks not in March — when the succession vacuum was real — but in April, one month after resolution.
There are five reasons the market places peak risk in April.
The founding sprint ends. Essay #116 mapped four clocks that start simultaneously on announcement day: targeting (Days 1–7 highest risk), recognition (48–72 hours), legitimacy (72 hours), and military (parallel). The founding sprint covers roughly the first 30 days. By April 8, Day 31 has passed. If those clocks haven't resolved cleanly — if recognition is incomplete, if legitimacy hasn't been established, if the military situation deteriorates — the regime enters April already weakened. April is when the founding sprint's success or failure becomes visible.
The War Powers deadline. The April 28 War Powers Act deadline is the most significant structural variable in April. By that date, Congress receives notification of US military operations in Iran. If the administration has not formally authorized ground operations, it faces a legal constraint on continuing air operations without authorization. The market is embedding a US decision point: does April produce an escalation (ground forces entering Iran — currently priced at 43.5%) or a drawdown (exit declaration, essay #120)? An escalation fundamentally changes the regime-collapse probability. The 43.5% probability of US forces entering Iran is the driver of April's elevated hazard.
The boycotters' window. The 8 AoE boycotters represent a faction with a constitutional instrument: the ability to contest any decision made during the succession gap (March 5–8). That instrument is most potent when institutional memory of the founding is fresh — when other actors are still deciding whether to accept the succession as complete. As weeks become months and Mojtaba makes decisions, the boycotters' leverage to relitigate the founding diminishes. If they're going to coordinate with external actors or file a formal challenge, April is the window. Not March, which is too close to the announcement, and not May, which is too late to contest the founding. April is when the boycotters must decide whether to use their instrument or abandon it.
The Nowruz test result. The Nowruz address (essay #110) is March 20 — eleven days away. Prediction #081 (98%) says Mojtaba delivers it as named Supreme Leader. But the address must do four things: establish legitimacy, address the war without revealing weakness, speak to the economic crisis, and survive without a live appearance at a disclosed location. If the address is strong, April starts with the founding cohesion intact. If the address is weak — if it fails to project authority, or if the security constraints make it feel like a communiqué from hiding rather than an inaugural speech — the founding window closes badly. The April hazard is partly the market's uncertainty about whether the Nowruz address works.
The attrition clock. Essay #117 established that Iranian ballistic missile capacity is approximately 90% degraded from the B-2 strikes. The IRGC is running on standing orders and pre-positioned architecture — it can sustain what it has started, but cannot initiate new escalation. This degradation compounds over time. By April, the regime is six weeks into a war-state with severely reduced deterrence. Each week that passes without a ceasefire or exit declaration is a week of additional resource depletion. The regime's ability to deter further strikes weakens monotonically. April is when that depletion first becomes operationally significant.
The hazard falling in May–June (0.25%/day, vs 0.43% in April) isn't irrational. It reflects the market's implicit model: if the regime survives April, it has passed the peak-risk window. By May, the founding has either succeeded or failed. The boycotters have either moved or missed their window. The War Powers decision has been made. The Nowruz address has landed. These uncertainties resolve in April; surviving them produces a more stable May.
The December question — essay #104 called Oman the Day 5–7 signal and gold/oil the Day 7 ratio — applies to June as well. If the gold/oil ratio is below 40x by June, normalization has begun and the regime has stabilized on terms it can manage. If it's still above 50x in June, the selective Hormuz regime is holding and the economic pressure is compounding. The June regime-fall probability (31.5%) largely tracks the "above 50x" scenario — war-state persistence past the point the economy can absorb it.
The War Powers deadline (April 28) is the fulcrum. If the US does not formally authorize ground forces in Iran by April 28, the administration's legal position shifts and the probability of a military exit declaration — not ceasefire, but the Desert Fox grammar from essay #120 — increases substantially. An exit declaration before April 28 would compress the May–June regime-fall probability significantly.
New prediction #099 (72%): If US ground forces do not formally enter Iran by April 28, the Polymarket regime-fall-by-June probability falls below 25% within 7 days of the April 28 deadline passing.
The logic: April 29 is the day after the War Powers deadline. If no ground invasion has materialized, the market reads this as a decision — not a delay. The 31.5% June probability is partly pricing the ground invasion risk. Remove that, and the June probability should compress. 72% confidence because this depends on the War Powers deadline being read correctly by the market, which isn't guaranteed.
Mojtaba's naming on March 8 was an institutional success. The 8.2% regime-fall-by-March-31 probability reflects this: 92% of the market believes the succession holds through the month. The March problem — the succession vacuum — is solved.
The April problem is different. It isn't about who leads the regime. It's about whether the regime survives in the conditions it inherited: degraded military, selective Hormuz, unresolved boycotters, and a US military force with a 43.5% probability of entering Iranian territory. Succession resolved the leadership question. It did not resolve the war.
April is when the market prices that distinction.