🏛Politics/POLYMARKET/May 15, 2026
polymarket market
Geopolitical event

Will Trump say "Strait" or "Hormuz" during events with Xi Jinping?

PRISM
82.0%
MARKET (PUBLISH)
77.0%
MARKET (SETTLED)
0%
MOVE
-77pp

PRISM detected 5.1pp mispricing — market held

PRISM estimated 82% against the market's 77%. This time, the market was right — a calibration data point.

PRISM MISSED-100% return
ISSUED FORECASTMay 15, 2026 at 10:05 AM
MODERATE · UNDERPRICED+5.1ppPRISM 82% · Market 77%
PRISM
82.0%
VS
MARKET
77.0%
EDGE DETECTED5.1pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
NO
FORECAST
MODERATE
DIRECTION
UNDERPRICED
CONFIDENCE
MEDIUM
ACCURACY EDGE
-80
PUBLISHED
May 15, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved NO on May 23, 2026. The market's pricing turned out to be more accurate than PRISM's assessment.

Forecast Tape

2 events
  1. May 15, 10:05 AMPUBLISHED

    Prism 82% vs market 77% — MODERATE UNDERPRICED

  2. May 23, 12:43 AMRESOLVED NO

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

2

What the market believed

MARKET PRICE · AT FORECAST TIME
77.0%

The market was pricing this event at 77.0% probability when PRISM generated its forecast. PRISM assessed this was too low — the market was underpricing the probability.

3

What PRISM believed

PRISM PROBABILITY
82.0%
EDGE DETECTED
5.1pp
FORECAST
MODERATE UNDERPRICED
Confidence
MEDIUM
Kelly Reference
N/A
PRISM Sizing (¼ Kelly · cap 5%)
N/A
PRISM REASONING
  • Fundamental analysis indicates a high chance Trump utters ‘Strait’ or ‘Hormuz’ in at least one jointly aired event with Xi
  • The Iran–Hormuz focus and Trump’s speaking style materially raise mention likelihood above generic word-base rates
FACTORS FOR
  • +Iran and Strait of Hormuz are central agenda topics.
  • +Trump often repeats key phrases and geographic terms in remarks.
  • +Multiple joint events over two days increase mention opportunities.
  • +Either of two related words triggers a YES outcome.
FACTORS AGAINST
  • Only jointly broadcast live events with Xi qualify.
  • Diplomatic scripting may constrain off-the-cuff geographic references.
  • Some discussion may occur in private or not be aired.
  • Ambiguity whether side interviews in Beijing feature Xi on screen.
RESOLUTION PATHS MODELED
Trump says ‘Strait’ or ‘Hormuz’ during a joint press conference42%
Trump uses the terms in a jointly aired formal statement25%
Trump mentions them in Q&A or other joint side event15%
Evidence 52%
SOURCES (8)
last day
  • Seized ship taken toward Iran as Trump and China's Xi agree Strait ...cbsnews.com

    Trump says Xi told him China would not give Iran military equipment: "That's a big statement". In an interview with Fox News' Sean Hannity Thursday from Beijing ...

    May 15Open →
  • Trump meets with China's Xi to end Strait of Hormuz ... - YouTubeyoutube.com

    The leaders of the world's two largest economies have no shortage of disagreements, but when it comes to the ability for vessels to pass through an ...

    May 14Open →
  • 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 15Open →
  • Xi welcomes Trump to Zhongnanhai for summit closing remarksyoutube.com

    ## NBC News ##### May 15, 2026 (0:02:32) Chinese President Xi Jinping spoke with President Trump on day two of the U.S.-China summit at Zhongnanhai, saying that he chose the venue to reciprocate the hospitality shown to him at Mar-a-Lago in 2017. The two leaders continue their high-level discussions...

    May 15Open →
  • Trump says Xi wants Strait of Hormuz kept open, opposes ...foxnews.com

    Trump says Xi wants Strait of Hormuz kept open, opposes tolls. President Donald Trump explains what he and Chinese President Xi Jinping requested from each ...

    May 15Open →
  • Xi Warns Trump of Potential “Conflict” over Taiwan in ...democracynow.org

    China has repeatedly called for the war on Iran to end and for the Strait of Hormuz to reopen. AMY GOODMAN: During their meeting, Chinese President Xi Jinping ...

    May 14Open →
  • Xi to Trump: US relationship with China could enter ' ...san.com

    Transcripts show that while discussions focused primarily on trade, they also touching on Iran and the Strait of Hormuz. Prior to the meeting, Secretary of ...

    May 14Open →
  • Trump: Xi says China won't give Iran military equipmentfoxnews.com

    Trump: Xi says China won't give Iran military equipment. President Donald Trump shares key takeaways from his meeting with Chinese President Xi Jinping.

    May 14Open →

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

4

Why the gap existed

Prism's 5.0% edge call was wrong — market was right

CALIBRATION SCORECARD
PRISM ACCURACY
0.672
MARKET ACCURACY
0.592
EDGE
-80.3
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 Will Trump say "Strait" or "Hormuz" during events with Xi Jinping?, classifying it as underpriced at 77.0%.
2.Forecast classification: MODERATE UNDERPRICED — PRISM estimate 82.0% vs market 77.0%.
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: v0.9.125-fast-ledger-floor·Forecasted: May 15, 2026·Resolved: May 23, 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.