🏛Politics/KALSHI/May 20, 2026
kalshi market

Will the House pass a reconciliation bill before December 31, 2026?

PRISM
27.0%
MARKET (PUBLISH)
18.0%
MARKET (SETTLED)
0%
MOVE
-18pp

PRISM detected 9.0pp mispricing — and was right

Market priced this at 18%. PRISM saw 27% — a 9.0pp gap. The outcome confirmed the underpricing.

PRISM WAS RIGHT+117% return
ISSUED FORECASTMay 19, 2026 at 10:06 PM
MODERATE · UNDERPRICED+9.0ppPRISM 27% · Market 18%
Live view diverged · PRISM reclassified to MODERATE with edge now +10.0pp. The issued forecast above is the historical commitment scored on the public ledger.
PRISM
27.0%
VS
MARKET
18.0%
EDGE DETECTED9.0pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
NO
FORECAST
MODERATE
DIRECTION
UNDERPRICED
CONFIDENCE
MEDIUM
ACCURACY EDGE
+115
PUBLISHED
May 20, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved NO on May 23, 2026. PRISM's forecast aligned with the resolved outcome.

Forecast Tape

6 events
  1. May 19, 10:06 PMPUBLISHED

    Prism 27% vs market 18% — MODERATE UNDERPRICED

  2. May 20, 10:07 AMRE-ANALYZED

    Forecast MODERATE → NONE at Prism 23%

  3. May 20, 10:07 AMMARKET MOVED

    Market 18% → 24% (+6pp)

  4. May 20, 4:08 PMRE-ANALYZED

    Forecast NONE → MODERATE at Prism 42%

  5. May 20, 4:08 PMMARKET MOVED

    Market 24% → 54% (+30pp)

  6. May 23, 3:30 PMRESOLVED NO

    Resolved NO. Prism was right. +117% return.

2

What the market believed

MARKET PRICE · AT FORECAST TIME
18.0%

The market was pricing this event at 18.0% probability when PRISM generated its forecast. PRISM assessed this was too low — the market was underpricing the probability.

3

What PRISM believed

PRISM PROBABILITY
27.0%
EDGE DETECTED
9.0pp
FORECAST
MODERATE UNDERPRICED
Confidence
MEDIUM
Kelly Reference
N/A
PRISM Sizing (¼ Kelly · cap 5%)
N/A
PRISM REASONING
  • Fundamental analysis indicates a somewhat-below-even chance of House passage of any reconciliation bill before the deadline
  • Prior successful reconciliation and broad qualifying language raise odds, but no active bill is evident
FACTORS FOR
  • +Any reconciliation bill qualifies; no requirement for Senate action or signing
  • +Recent Congress already passed a reconciliation law, proving procedural viability
FACTORS AGAINST
  • No currently-identified active House bill labeled as reconciliation
  • Leadership focus appears on other legislative priorities, not new reconciliation
RESOLUTION PATHS MODELED
Leadership introduces and quickly passes a fresh reconciliation package30%
Existing budget-focused bill is restructured and passed as reconciliation12%
Evidence 53%
SOURCES (6)
last day
  • Key Health Care Issues We are Tracking in 2026 in the Carolinasjdsupra.com

    Senate Bill 370, introduced in 2025, would completely repeal North Carolina's CON laws but was not approved before the legislative session adjourned. The bill ...

    May 19Open →
  • One Big Beautiful Bill (OBBB) - IRSirs.gov

    Missing: reconciliation December 31

    Jul 30Open →
  • The One Big Beautiful Bill Act (OBBBA): What to Know and What to Dospencer-west.com

    The One Big Beautiful Bill Act (OBBBA) creates a window for taxpayers to utilise higher exemptions. Here's what to know and what to do.

    May 19Open →
  • Increasing the Fee for Certain Aliens Ordered Removed in Absentia ...federalregister.gov

    DHS is proposing to update the fee required by section 100016 of the Budget Reconciliation Act (known as the HR-1). This fee applies to certain aliens ...

    May 20Open →
  • Disability Organizations Call on Congress to Prioritize Care, Access ...dredf.org

    The proposed additional $71 billion in funding for ICE and CBP and harmful amendments are on top of the $170 billion received through the 2025 reconciliation ...

    May 20Open →
  • Congress.gov verified legislative datacongress.gov

    ## VERIFIED CONGRESSIONAL DATA — LEGISLATIVE ACTION (Congress.gov — USE THESE FACTS) CRITICAL: The following data is from the official Congress.gov API and is verified. Use ONLY these facts. DO NOT fabricate bill numbers or status. Category: Legislative Action Bills Found: 5 active/recent bills matching "a reconciliation bill" ### Relevant Bills (most recently updated first): - HR 7529 (119th Congress) Title: Fresh Starts for Foster Youth Act Status: Status: Placed on the Union Calendar, Calendar No. 557. Progress: 20% through legislative process Last Action (2026-05-11): Placed on the Union Calendar, Calendar No. 557. Origin: House - HR 6047 (119th Congress) Title: Sharri Briley and Eric Ed

    May 20Open →

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

4

Why the gap existed

Prism's 9.0% edge call was wrong — market was right

CALIBRATION SCORECARD
PRISM ACCURACY
0.176
MARKET ACCURACY
0.292
EDGE
+115.2
Brier edge
PRISM's probability estimate was more accurate than the market price.
5

How this forecast played out

1.PRISM analyzed Will the House pass a reconciliation bill before December 31, 2026?, classifying it as underpriced at 18.0%.
2.Forecast classification: MODERATE UNDERPRICED — PRISM estimate 27.0% vs market 18.0%.
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: v0.9.132-resolution-aware-repair·Forecasted: May 20, 2026·Resolved: May 23, 2026·kalshi
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.