Will the Iranian Regime Fall by May 31?

The Iranian regime collapse market just fell off a cliff. On April 1, YES shares dropped from $0.50 to $0.06, a 44-cent single-day collapse that wiped out half a dollar of implied probability in one session. That kind of move does not happen by accident. The market opened this contract pricing a coin-flip chance of regime change. It closed pricing near-zero.

The “Will the Iranian regime fall by May 31?” contract now sits at 5.5% YES, with NO commanding 94.5%. The contract resolves on May 31, 2026, and the $60,457 in total volume tells a story about a market that briefly believed, then decisively didn’t.

How the Iranian Regime Collapse Contract Works

This contract resolves YES if the Islamic Republic of Iran’s government collapses or loses effective control before May 31, 2026. Polymarket determines resolution based on credible reporting of regime fall. If the government remains in power through that date, NO wins.

• YES: Iranian regime falls before the deadline. Price: $0.06. Probability: 5.5%. Resolves: May 31, 2026.
• NO: Iranian regime remains in power. Price: $0.95. Probability: 94.5%. Resolves: May 31, 2026.

NO buyers need exactly one thing: the Iranian government staying intact for roughly two more months. The Islamic Republic has survived the 2009 Green Movement, the 2019 protests, the 2022 Mahsa Amini uprising, and decades of sanctions. Every one of those crises resolved without regime change. What makes NO vulnerable is a simultaneous military collapse, mass defection of security forces, and loss of clerical legitimacy. All three would need to happen fast. The market says that’s a 5.5% scenario.

Sponsored Partner

Market Signals: Selling Pressure Across Every Timeframe

The momentum composite here is uniformly negative. The 24-hour price change on the Iranian regime collapse contract sits at -1.0%, the 1-hour trend continues downward, and the trend score reflects sustained selling pressure with no reversal signal present. This is not deceleration. This is a market that collapsed and kept drifting lower.

The volume figure is the most striking data point. The Iranian regime contract pulled $54,224 in 24-hour volume against $60,457 in total lifetime volume. Nearly the entire trading history of this contract happened in a single day. The $295,019 in available liquidity dwarfs the actual trading activity, meaning the market is structurally deep but participant interest is thin. High liquidity with low engagement usually means market makers are present but directional conviction is one-sided.

• YES price, current: $0.06, down from $0.50 at open. The April 1 collapse represents a 88% single-session decline in YES value.
• 24-hour volume ($54,224): Represents 89.7% of the contract’s total lifetime volume. Concentration this extreme signals a single catalyst drove almost all activity.
• Liquidity ($295,019): Available capital is nearly five times total traded volume. Market makers are positioned but retail flow is not following.
• Related market signal: “Will the Iranian regime fall by June 30?” prices at 14% on Polymarket as of April 2, 2026. The May 31 contract at 5.5% implies the regime has roughly a 9-point higher chance of surviving May than surviving June. That spread makes sense given the extra month of exposure.
• 1-hour change: Negative, confirming no bounce after the April 1 collapse. Sellers have not stepped back.

Lines Analysis: What the Crash Tells You About Iran

The case for YES rests entirely on a black swan scenario. The Iranian regime faces real pressure: economic deterioration from sanctions, generational anger over social restrictions, and a weakened regional position after losses in Gaza and Lebanon. A 5.5% probability is not zero. Two months is time enough for a fast-moving crisis to escalate. The “Will Iran fall before 2027?” contract sitting at 25% on Polymarket suggests the broader market sees non-trivial longer-term risk. The May 31 contract is simply asking if that risk arrives on an extremely accelerated timeline.

The case for NO is structural. The Iranian regime controls the Revolutionary Guards, the Basij, and a deep security apparatus built specifically to survive internal revolt. The 94.5% NO price reflects the historical record: the Islamic Republic has absorbed every challenge since 1979. The math doesn’t lie. Regimes with functioning coercive capacity very rarely collapse in 60-day windows without an external military trigger. None is currently present.

• US military action against Iran: Any confirmed strikes on Iranian territory would immediately push YES higher.
• IRGC defection reports: Credible reporting of mass security force defections would be the single strongest YES signal.
• Supreme Leader health news: Khamenei health deterioration historically correlates with elevated regime instability speculation.
• Protest scale: Street protests would need to exceed 2022 Mahsa Amini levels substantially to shift this market.
• Related contract divergence: If the June 30 contract moves above 20% while May 31 stays at 5.5%, the timeline gap is widening. Watch for convergence as a signal.

The $60,457 in total volume reflects a market that attracted a burst of speculative interest and then got repriced hard. Here’s what the market is missing: the April 1 collapse almost certainly followed a specific news event that deflated the original opening price. Without that catalyst identified, the current 5.5% is the market’s best read on baseline regime collapse probability in a compressed timeframe. The data favors NO by an overwhelming margin.

LINES VERDICT

NO Favored Strongly

The Iranian regime’s collapse by May 31 would require an unprecedented cascade of failures in a system built to prevent exactly that outcome. The market repriced this contract from even odds to near-zero in a single session for a reason.

What the market says: At 5.5%, traders view Iranian regime collapse in the next two months as a deep long-shot. As May 31 approaches with no escalation catalyst, expect that number to compress further toward zero.