🌍Geopolitics/POLYMARKET/April 1, 2026
polymarket market
Diplomatic event

US x Iran ceasefire by April 15?

PRISM
1.0%
MARKET (PUBLISH)
20.5%
MARKET (SETTLED)
100%
MOVE
+80pp

PRISM detected 8.5pp overconfidence β€” market held

When Prism gets it wrong: a ceasefire nobody expected, and what the miss teaches about geopolitical modeling.

PRISM MISSED-100% return
ISSUED FORECASTApr 1, 2026 at 4:03 PM
MODERATE Β· OVERPRICED+8.5ppPRISM 1% Β· Market 21%
PRISM
1.0%
VS
MARKET
20.5%
EDGE DETECTED8.5pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
YES
FORECAST
MODERATE
DIRECTION
OVERPRICED
CONFIDENCE
MEDIUM
ACCURACY EDGE
-348
PUBLISHED
Apr 1, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved YES on April 10, 2026. The market's pricing turned out to be more accurate than PRISM's assessment.

β—ˆ

Forecast Tape

2 events
  1. Apr 1, 4:03 PMPUBLISHED

    Prism 1% vs market 21% β€” MODERATE OVERPRICED

  2. Apr 10, 2:45 AMRESOLVED YES

    Resolved YES. Market was closer than Prism on this call.

2

What the market believed

MARKET PRICE Β· AT FORECAST TIME
20.5%

The market was pricing this event at 20.5% probability when PRISM generated its forecast. PRISM assessed this was too high β€” the market was overconfident.

3

What PRISM believed

PRISM PROBABILITY
1.0%
EDGE DETECTED
8.5pp
FORECAST
MODERATE OVERPRICED
Confidence
MEDIUM
Kelly Reference
48.8%
PRISM Sizing (ΒΌ Kelly Β· cap 5%)
N/A
PRISM REASONING
  • β–ΈNo verified direct US-Iran military engagement exists that would require an official ceasefire agreement
  • β–ΈMarket significantly overprices event given zero evidence of bilateral hostilities needing resolution
FACTORS FOR
  • +Diplomatic backchannel communications ongoing
  • +Trump signals de-escalation timeline
FACTORS AGAINST
  • βˆ’No direct US-Iran military engagement documented
  • βˆ’Recent escalation with Isfahan strikes April 1
  • βˆ’Iran rejected US 15-point plan
4

Why the gap existed

Prism's 19.5% edge call was wrong β€” market was right

CALIBRATION SCORECARD
PRISM ACCURACY
0.980
MARKET ACCURACY
0.632
EDGE
-348.1
Brier edge
The market's probability estimate was more accurate than PRISM's on this call.
5

How this forecast played out

1.PRISM analyzed US x Iran ceasefire by April 15?, classifying it as overpriced at 20.5%.
2.Forecast classification: MODERATE OVERPRICED β€” PRISM estimate 1.0% vs market 20.5%.
3.Kelly reference at forecast time: β€”% (ΒΌ Kelly, capped at 5%; mathematical reference only β€” not a position recommendation).
4.Outcome: resolved YES.

Get live PRISM forecasts for Kalshi + Polymarket.

Edge scores, Kelly references, confidence levels, and resolution paths β€” updated every 2 hours, before the market corrects.

VIEW LIVE FORECASTS
PRISM: v0.5Β·Forecasted: April 1, 2026Β·Resolved: April 10, 2026Β·polymarket
For informational purposes only. Not financial advice. EdgeCal provides PRISM-generated market analysis and does not execute trades, manage funds, or guarantee returns. Past performance does not indicate future results.