Iran calls US blockade an ‘act of war’ as ceasefire chances dwindle

Iran’s foreign minister labeled the US blockade of Iranian ports an “act of war,” according to Reuters. The odds of a US-Iran ceasefire by April 30 have dropped to 14.5% YES, down from 32% just 24 hours ago.

The April 30 sub-market saw a 5-point spike at 6:59 PM yesterday, likely triggered by a large order. Daily volume is $68,607 in USDC, but it only takes $4,074 to move the price by 5 percentage points, meaning a few big trades can swing the market considerably.

Iran’s “act of war” language narrows the window for any diplomatic resolution before April 30, now just 9 days away. The drop in odds tracks with traders pricing in the combination of ongoing naval blockades and accusations of ceasefire violations from both sides. This market’s decline runs opposite to related markets like US forces entering Iran, which have moved inversely.

At current prices, YES shares cost 15¢, offering a potential 6.67x return. That bet requires rapid diplomatic progress or a softening of rhetoric within 9 days. With no visible de-escalation channel open, the bearish positioning looks well-founded.

Watch for statements from CENTCOM, IRGC leadership, or intermediaries like Oman and Qatar. Any concrete move toward diplomacy could shift the market, but the 9-day window leaves little room for the kind of back-channel negotiations that typically precede a ceasefire announcement.

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