After Iran signals openness to talks, traders expect Israel-Iran truce through November

Traders expect the Israel-Iran ceasefire to last through November 30, though they are split on whether it survives to the end of the year. Expectations for that deadline moved from a toss-up to likely on Saturday, October 17, a surge that came mostly from midday into the afternoon.

Across the different deadlines, the picture is of a truce that is likely to hold for now but is fragile further out. Traders see it as likely to last through October 31 and through November 15, and a toss-up through December 31. Their bets point to the truce lasting until about late December, later than the mid-December point they implied when this story began. The range they allow runs from late October to beyond the end of the year.

The likely trigger for Saturday's jump was a statement by Iran's Foreign Minister Abbas Araghchi. Anadolu Agency reported that he said Iran remained open to dialogue if it received credible guarantees against renewed attacks. The timing plausibly contributed to the rise, but the remarks were a conditional diplomatic signal. They were not an agreement or a specific Israel-Iran commitment, and they appeared aimed at the United States. One report of the remarks is dated October 18, after the move began, so the link is not firmly established.

Expectations had been stronger earlier in October. They peaked around October 5, fell sharply the next day, and settled lower through the following week. They slipped again on October 15 and 16, to about a toss-up, before Saturday's rebound recovered much of that slide. A separate question on whether a U.S.-Iran ceasefire lasts through November 30 has also risen, from unlikely to a toss-up.

Uncertainty grew through October. Earlier coverage tied the outlook to an attack at Riyadh's airport, which Saudi authorities blamed on Iran-backed Houthi rebels, and to statements from Donald Trump and Iranian leaders that the U.S. election calendar was not driving their decisions in the seven-month-old war. The Associated Press reported on October 11 that an Iranian official called the latest U.S. response to a proposal insufficient. Axios reported on October 13 that Trump and Israeli Prime Minister Benjamin Netanyahu had discussed a possible return to major operations, and on October 16 that U.S. forces were preparing for possible renewed operations while Tehran had not answered a counterproposal. Those reports described discussions and preparations, not a decision to strike.

For this question, the ceasefire ends only if Israel or Iran carries out an air strike or surface-to-surface missile strike that directly hits the other's territory or internal waters. Interceptions, proxy attacks, cyber operations, threats and strikes by the United States alone would not end it.

The next scheduled event bearing on the question is Israel's parliamentary election on October 27. Reporting so far describes no specific Israel-Iran talks or deadlines before November 30.