SIG-093 geopolitics NOT_PUBLISHED

US x Iran ceasefire by May 15?

Direction NO underpriced · Confidence HIGH · Closes 2026-05-15

Market price

44%

at signal

Our estimate

15%

calibrated

Gap

+29.5pp

market vs ours

Status

NOT_PUBLISHED

2026-05-15 close

Evidence

Iran REJECTED the 45-day US-backed ceasefire proposal on April 6, demanding instead a permanent end to hostilities, sanctions relief, and guarantees — conditions the US has shown zero willingness to accept.
Both sides are actively ESCALATING, not de-escalating. Iran fired missiles at Saudi Arabia and Bahrain on April 7 (first strikes on Gulf states, widening the war). Trump threatened to bomb all power plants and bridges with an 8PM ET Tuesday deadline.
Resolution requires MUTUAL official ceasefire agreement publicly confirmed by BOTH governments. Even if secret backchannel talks started tomorrow, negotiating, agreeing, and publicly announcing a formal ceasefire in 38 days — while bombs are falling daily — has no modern precedent.
Historical baselines: Serbia bombing campaign lasted 78 days before agreement. Gulf War air campaign was 43 days. Korean War armistice took 2 years. Iran war is only Day 39 with active combat escalation on multiple fronts.
Iran's counter-demands (permanent end to hostilities, sanctions relief, nuclear guarantees) represent maximalist positions incompatible with Trump's demand for unconditional Strait reopening. The negotiation gap is enormous.

Counter-evidence

Axios (April 7): Iran talks show "glimmer of progress" — Egyptian mediators say Iran open to 45-day ceasefire with conditions
Trump has political incentive to declare ceasefire victory before midterm season; could accept face-saving deal
Pakistani, Egyptian, and Turkish mediation channels are active — more diplomatic infrastructure than search results suggest
Iran submitted 10-point peace plan (April 7) — rejected by Trump as "not good enough" but shows willingness to negotiate