Key points to remember:
- Polymarket’s US-Iran military operations market reached $16.4 million in volumeApril 30 having a probability of 42%.
- Kalshi gives only a 16% chance that the United States will reopen its embassy in Iran by January 1, 2027, with the “No” vote set at 84 cents.
- Ceasefire talks begin around April 10-11 in Islamabad, but traders estimate the chance of the truce being maintained until April 21 is only 26%.
Polymarket traders give April 30 the best chance for the end of the declaration of war between the United States and Iran
The two-week conditional ceasefire announced by President Donald Trump on April 7 ended direct hostilities between the United States and Iran, but forecast markets are not yet convinced that the calm will last. The deal, negotiated with Pakistan’s mediation assistance, requires Iran to allow the “full, immediate and secure opening” of the Strait of Hormuz. Any disruption of this condition endangers the entire agreement.
On Polymarket, the market tracker when Trump officially declares the end of US military operations, launched on February 28, 2026, has accumulated $16,419,168 in total. trade volume. The date of April 30 currently has the highest probability at 42%, with $3,508,856 wagered on this outcome. June 30 follows with a cumulative probability of 79% and $1,485,985 in volumereflecting traders’ confidence that an official statement will come in early summer, if not earlier. April 15 sits at just 10%, suggesting few people expect Trump to make it official within the next week.
A separate bet on the Polymarket event asks whether Trump or the US government will officially declare an end to the ceasefire itself before the two-week window closes. This market generated volume of $53,965 and tells a more skeptical story. April 21 is in the lead with a probability of 26%. April 18 comes just behind, at 24%. April 8 only had a 1% chance, with April 10 being 7% and April 12 being 19%. The discrepancy indicates that traders expect the truce to last at least a few more days, but many doubt it will survive the full two weeks.
The ceasefire gives a narrow window to negotiators. Talks are scheduled around April 10-11 in Islamabad, with Vice President JD Vance expected to lead the US delegation. Iran has said it wants a permanent end to hostilities, not a temporary pause. His 10-point proposal includes demands for sanctions relief, compensation for damages, a U.S. regional withdrawal and Iranian control over the strait. Trump described the proposal as a “viable basis” for negotiations.
Post-announcement complications are already in play. Reports of continued missile activity in the Gulf and Israeli strikes on Lebanon surfaced shortly after the deal was announced. Iran has said ongoing attacks in Lebanon could make continuing talks “unreasonable.” Israel’s domestic politics add another variable: The deal fell short of more ambitious Israeli goals, putting pressure on Prime Minister Benjamin Netanyahu.
In Kalshi, traders are skeptical about long-term normalization. A market analysis of whether the United States will reopen its embassy or consulate in Iran by January 1, 2027 shows only a 16% chance in favor. The “Yes” contract costs 17 cents, while the “No” contract costs 84 cents. The total volume is $67,163. Sentiment in this market has been down since early March, although some traders say the chances are undervalued given possible regime changes or a shift in foreign policy from the Trump administration.
The general market reaction was positive to the ceasefire announcement. Global stocks rose and oil briefly fell below $100 a barrel on hopes that access to Hormuz would be restored. Bitcoin has surpassed the $70,000 mark. This relief trade assumes that the agreement is kept.
Both sides claimed victory. Trump and Defense Secretary Pete Hegseth called the U.S. goals a failure, with Hegseth calling the outcome “historic.” Iran presented the result as resistance producing results. The gap between these narratives is wide, and that gap will shape what happens in Islamabad this weekend.
For now, traders are pricing in continued uncertainty. The market structure, with high volume in late April and May and low confidence in a solution before April 15, reflects a crowd that believes de-escalation is real but incomplete. Whether the Islamabad negotiations result in a lasting agreement or collapse under the weight of unresolved conditions will determine which positions will pay off.
A $16 million question is on the board. The clock started on April 7.
