🌍Geopolitics/POLYMARKET/April 1, 2026
polymarket market

Israel military action against Yemen by April 15, 2026?

PRISM
1.0%
MARKET (PUBLISH)
42.5%
MARKET (SETTLED)
0%
MOVE
-43pp

PRISM detected 29.1pp overconfidence — and was right

Market priced 42% probability of an Israeli strike on Yemen by April 15. Prism’s 1% reflected the total absence of operational signals. Two weeks confirmed no strike.

PRISM WAS RIGHT+74% return
ISSUED FORECASTApr 1, 2026 at 2:03 PM
STRONG · OVERPRICED+29.1ppPRISM 1% · Market 43%
PRISM
1.0%
VS
MARKET
42.5%
EDGE DETECTED29.1pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
NO
FORECAST
STRONG
DIRECTION
OVERPRICED
CONFIDENCE
MEDIUM
ACCURACY EDGE
+181
PUBLISHED
Apr 1, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved NO on April 16, 2026. PRISM's forecast aligned with the resolved outcome.

Forecast Tape

2 events
  1. Apr 1, 2:03 PMPUBLISHED

    Prism 1% vs market 43% — STRONG OVERPRICED

  2. Apr 16, 7:54 AMRESOLVED NO

    Resolved NO. Prism was right. +74% return.

2

What the market believed

MARKET PRICE · AT FORECAST TIME
42.5%

The market was pricing this event at 42.5% probability when PRISM generated its forecast. PRISM assessed this was too high — the market was overconfident.

3

What PRISM believed

PRISM PROBABILITY
1.0%
EDGE DETECTED
29.1pp
FORECAST
STRONG OVERPRICED
Confidence
MEDIUM
Kelly Reference
87.8%
PRISM Sizing (¼ Kelly · cap 5%)
N/A
PRISM REASONING
  • Israel has not retaliated against Yemen despite 34 days of war and recent Houthi missile attacks
  • Market overprices escalation probability given Israel's focus on Iran and US de-escalation timeline
FACTORS FOR
  • +Houthis launched first attacks March 28
  • +Regional war escalating since February
  • +Israel has history of responding to attacks
FACTORS AGAINST
  • No Yemen strikes in 34 days of war
  • Israel targeting Iran directly instead
  • US expects conclusion in weeks not months
4

Why the gap existed

Prism correctly identified 41.5% mispricing

CALIBRATION SCORECARD
PRISM ACCURACY
0.000
MARKET ACCURACY
0.181
EDGE
+180.5
Brier edge
PRISM's probability estimate was more accurate than the market price.
5

How this forecast played out

1.PRISM analyzed Israel military action against Yemen by April 15, 2026?, classifying it as overpriced at 42.5%.
2.Forecast classification: STRONG OVERPRICED — PRISM estimate 1.0% vs market 42.5%.
3.Kelly reference at forecast time: —% (¼ Kelly, capped at 5%; mathematical reference only — not a position recommendation).
4.Outcome: resolved NO.

Get live PRISM forecasts for Kalshi + Polymarket.

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

VIEW LIVE FORECASTS
PRISM: v0.5·Forecasted: April 1, 2026·Resolved: April 16, 2026·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.