Prediction markets put the probability at 69%: US announces end of Iranian blockade by December 31, 2026. Currently, markets are divided (69% YES, 31% NO).
The diplomatic trajectory toward ending the US-imposed naval blockade of Iran has shifted dramatically since President Donald Trump ordered the Strait of Hormuz closure in April, with the latest developments pointing toward a formal announcement. After peace talks in Islamabad collapsed on April 12, 2026, Trump directed the US Navy to enforce the blockade, condemning Iran for allegedly blocking the waterway—a move that escalated the conflict that began on February 28, 2026 as a joint US-Israel operation [Al Jazeera, Apr 12]. However, by late May, negotiators had agreed on broad principles, with Iranian Foreign Ministry spokesman Esmaeil Baqaei reiterating demands for sanctions relief and the release of frozen assets as prerequisites for any deal [CBS News, May 25]. The market now prices a 69% probability that the US announces an end of the Iranian blockade by December 31, 2026, reflecting the rapid shift from open hostilities to negotiated settlement.
The most concrete signal came on June 15, 2026, when Iran and the United States agreed to a memorandum of understanding to end more than 100 days of war, with Tehran stating the agreement also covers Lebanon, which has faced intense Israeli attacks since March 2 [Al Jazeera, Jun 15]. Trump had declared the deal "largely finalized" a week earlier, though the two sides exchanged renewed fire on May 30-31 as Washington requested changes to the proposed text [CNN, May 31]. The memorandum reportedly includes provisions to reopen the strait and begin detailed talks on Iran's nuclear program, with a formal signing ceremony expected on a Friday, according to multiple sources. If finalized, this would represent the first official US announcement ending the Iranian blockade since it was imposed, a key condition for Tehran's continued participation in broader negotiations.
Hawks in Washington caution that the agreement remains fragile, noting that Trump's demand for "changes" to the proposed deal and the exchange of fire in late May demonstrate the volatility of the process. Analysts point to the structural factor that will determine resolution: the blockade's enforcement cost and its impact on global oil prices, which have pressured both sides to reach a settlement. The US has telegraphed progress on reopening the strait, but Iran's insistence on sanctions lifting and asset release—coupled with the separate track on Lebanon—means the final announcement could slip past the December 31, 2026 deadline if negotiations stall again [CNN, May 19]. The market's 69% probability reflects the momentum toward a deal, but the remaining 31% captures the risk of a breakdown, particularly if the nuclear talks or regional ceasefire terms falter in the coming months.
Polymarket prices this at 69c YES with $765K in volume. Moderate liquidity — use limit orders for positions above $1K to avoid moving the price.
Smart money entered NO at 12c. 100% of NO wallets in profit.
We tracked 2 wallets with positions above $1K on this market. NO wallets entered between 12c.
| Wallet | Category | Side | Amount | P&L | |
|---|---|---|---|---|---|
| 0xd5cc..a4 | MM | YES | $16.4K | -14% | |
| 0x551e..e0 | MM | NO | $7.4K | +94% |
YES wallets entered between 80c, NO wallets at 12c. At current price 69c, all YES buyers are underwater while all NO holders are profitable. Profitable positions rarely sell early — NO side has structural price support.
Polymarket prices YES at 69c with $765K in total volume. Our model estimates fair value at 69c. Model and market are aligned — no pricing discrepancy detected.
| Platform | YES Price | Volume |
|---|---|---|
| Polymarket | 69c | $765K |
| Our Model | 69c | — |