Lindsey Graham hints at possible global expansion of US blockade on Iran

Lindsey Graham hinted at a possible global expansion of the U.S. blockade on Iran. The market for a U.S.-Iran diplomatic meeting by April 30 sits at 100% YES, but Graham’s statement points toward escalation rather than de-escalation.

A global blockade would make diplomatic resolutions less likely, and several markets have moved accordingly. The odds for Trump announcing the lifting of the Hormuz blockade by May 31 are now at 73% YES, down from 82% yesterday. The Iran diplomatic meetings market for May 31 has also dropped to 73% YES from 82% over the past day.

The market’s current depth means it takes $8,549 to move the price 5 percentage points, so these shifts required real money behind them. The largest move in the past 24 hours was a 3-point drop early morning, directly following Graham’s comments.

Graham’s statement signals a hardening U.S. stance that complicates any near-term diplomatic resolution. Traders betting on a breakthrough by May 31 face worse odds than they did 24 hours ago. At 73¢, a YES share pays $1 if the blockade is lifted, for a 1.37x return. That bet now depends on significant diplomatic movement within the next month.

Watch for announcements from President Trump or military activity in the Strait of Hormuz. A shift in CENTCOM’s operational stance or new sanctions could push these markets further.

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