🏛Politics/POLYMARKET/May 26, 2026
polymarket market
Geopolitical event

Strait of Hormuz traffic returns to normal by end of June?

PRISM
71.0%
MARKET (PUBLISH)
31.5%
MARKET (SETTLED)
0%
MOVE
-32pp

PRISM detected 10.0pp mispricing — market held

PRISM estimated 71% against the market's 32%. This time, the market was right — a calibration data point.

PRISM MISSED0% return
ISSUED FORECASTMay 18, 2026 at 2:07 PM
MODERATE · UNDERPRICED+10.0ppPRISM 71% · Market 32%
Live view diverged · PRISM reclassified to NONE with edge now +0.0pp. The issued forecast above is the historical commitment scored on the public ledger.
PRISM
71.0%
VS
MARKET
31.5%
EDGE DETECTED10.0pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
NO
FORECAST
MODERATE
DIRECTION
UNDERPRICED
CONFIDENCE
LOW
ACCURACY EDGE
+37
PUBLISHED
May 26, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved NO on July 7, 2026. The market's pricing turned out to be more accurate than PRISM's assessment.

Forecast Tape

18 events
  1. Apr 26, 4:11 AMPUBLISHED

    Prism 48% vs market 58% — NONE FAIR

  2. May 3, 8:03 PMMARKET MOVED

    Market 58% → 48% (-10pp)

  3. May 9, 10:05 AMMARKET MOVED

    Market 48% → 53% (+6pp)

  4. May 11, 4:07 AMMARKET MOVED

    Market 53% → 42% (-12pp)

  5. May 13, 8:09 PMMARKET MOVED

    Market 42% → 30% (-12pp)

  6. May 14, 12:06 PMMARKET MOVED

    Market 30% → 39% (+10pp)

  7. May 15, 3:55 AMMARKET MOVED

    Market 39% → 28% (-11pp)

  8. May 18, 2:07 PMRE-ANALYZED

    Forecast NONE → MODERATE at Prism 71%

  9. May 20, 4:06 AMRE-ANALYZED

    Forecast MODERATE → NONE at Prism 24%

  10. May 21, 8:06 PMRE-ANALYZED

    Forecast NONE → MODERATE at Prism 27%

  11. May 21, 8:06 PMMARKET MOVED

    Market 28% → 36% (+8pp)

  12. May 22, 2:07 AMRE-ANALYZED

    Prism 71% — edge +5.0pp

  13. May 22, 2:07 AMMARKET MOVED

    Market 36% → 31% (-5pp)

  14. May 24, 6:07 PMMARKET MOVED

    Market 31% → 51% (+20pp)

  15. May 25, 8:07 AMRE-ANALYZED

    Forecast MODERATE → NONE at Prism 48%

  16. May 25, 4:08 PMMARKET MOVED

    Market 51% → 56% (+5pp)

  17. May 26, 2:09 AMMARKET MOVED

    Market 56% → 43% (-13pp)

  18. Jul 7, 3:27 PMRESOLVED NO

    Resolved NO. Market was closer than Prism on this call.

2

What the market believed

MARKET PRICE · AT FORECAST TIME
31.5%

The market was pricing this event at 31.5% probability when PRISM generated its forecast. PRISM assessed this was too low — the market was underpricing the probability.

3

What PRISM believed

PRISM PROBABILITY
71.0%
EDGE DETECTED
10.0pp
FORECAST
MODERATE UNDERPRICED
Confidence
LOW
Kelly Reference
N/A
PRISM Sizing (¼ Kelly · cap 5%)
N/A
PRISM REASONING
  • Fundamental analysis indicates Strait of Hormuz traffic is unlikely to reach the PortWatch ≥60 threshold by June 30, 2026
  • Market pricing appears slightly optimistic given ongoing restrictions and expert flow timelines
FACTORS FOR
  • +Over a year remains for gradual recovery to accumulate
  • +AIS-based routing could partially normalize even with some controls
FACTORS AGAINST
  • Reuters reports traffic far below pre-war norms under Iranian controls
  • ADNOC CEO guiding full flow recovery only in 2027 or later
RESOLUTION PATHS MODELED
Negotiated de-escalation lifts Iranian controls, traffic steadily recovers22%
Controls persist but commercial workarounds lift 7-day MA above 6016%
Evidence 53%
SOURCES (5)
last day
  • Is Strait of Hormuz now open? More oil, LNG tankers cross Gulf ...gulfnews.com

    Traffic has resumed on a limited basis under routes and controls imposed by Iran, but shipping volumes remain far below pre-war levels. Energy executives and ...

    May 25Open →
  • Oil and LNG tankers return to the Strait of Hormuz after a three ...burgasmedia.com

    After nearly three months of practically blocked traffic for major energy cargoes, oil and LNG tankers have begun to gradually resume passage through the Strait ...

    May 25Open →
  • Nikkei: Iran to reopen Strait of Hormuz 30 days after US dealcryptobriefing.com

    Nikkei reports Iran will reopen Hormuz 30 days after a US deal; ceasefire extension by June 7 at 73.5% YES, Hormuz normal by May 31 at 3% YES.

    May 25Open →
  • Oil down to 2-week low as US, Iran seen moving closer to peace dealdailysabah.com

    Analysts expect a return to normal oil flows through the strait to take months, while damaged oil and gas facilities are repaired. "We continue to believe that ...

    May 25Open →
  • IMF PortWatch resolution contextportwatch.imf.org

    Source: IMF PortWatch Resolution field: 7-day moving average of transit calls through Strait of Hormuz above 60, per IMF PortWatch Frequency: event-driven Contract terms: https://kalshi-public-docs.s3.amazonaws.com/contract_terms/POLITICALSTATTEMPORAL.pdf Known rule risks: Traders price this as geopolitical sentiment ("will Iran tensions ease?") but it's a DATA market with quantitative threshold; IMF PortWatch is publicly accessible — you can track the 7-day MA in real-time; "Transit calls" = ship passages, tracked by AIS (Automatic Identification System) data

    May 26Open →

PRISM RETRIEVES EVIDENCE FROM A CURATED LIST OF PRIMARY WIRES + OFFICIAL SOURCES

4

Why the gap existed

Prism's 39.5% edge call was wrong — market was right

CALIBRATION SCORECARD
PRISM ACCURACY
0.144
MARKET ACCURACY
0.181
EDGE
+37.1
Brier edge
PRISM's probability estimate was more accurate than the market price.
5

How this forecast played out

1.PRISM analyzed Strait of Hormuz traffic returns to normal by end of June?, classifying it as underpriced at 31.5%.
2.Forecast classification: MODERATE UNDERPRICED — PRISM estimate 71.0% vs market 31.5%.
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: v0.9.176-actionable-slot-priority·Forecasted: May 26, 2026·Resolved: July 7, 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.