🤖Tech/KALSHI/May 19, 2026
kalshi market

Will SpaceX launch another Starship by May 31, 2026?

PRISM
98.0%
MARKET (PUBLISH)
84.0%
MARKET (SETTLED)
100%
MOVE
+16pp

PRISM detected 10.0pp mispricing — and was right

Market priced this at 84%. PRISM saw 98% — a 10.0pp gap. The outcome confirmed the underpricing.

PRISM WAS RIGHT+19% return
ISSUED FORECASTMay 19, 2026 at 10:06 PM
MODERATE · UNDERPRICED+10.0ppPRISM 98% · Market 84%
PRISM
98.0%
VS
MARKET
84.0%
EDGE DETECTED10.0pp
WEAK
MODERATE
STRONG
EXTREME
OUTCOME
YES
FORECAST
MODERATE
DIRECTION
UNDERPRICED
CONFIDENCE
MEDIUM
ACCURACY EDGE
+25
PUBLISHED
May 19, 2026
VIEW LIVE PRISM FORECASTSEdge scoring updated every 2h
1

What happened

This market resolved YES on June 1, 2026. PRISM's forecast aligned with the resolved outcome.

Forecast Tape

2 events
  1. May 19, 10:06 PMPUBLISHED

    Prism 98% vs market 84% — MODERATE UNDERPRICED

  2. Jun 1, 4:00 AMRESOLVED YES

    Resolved YES. Prism was right. +19% return.

2

What the market believed

MARKET PRICE · AT FORECAST TIME
84.0%

The market was pricing this event at 84.0% probability when PRISM generated its forecast. PRISM assessed this was too low — the market was underpricing the probability.

3

What PRISM believed

PRISM PROBABILITY
98.0%
EDGE DETECTED
10.0pp
FORECAST
MODERATE UNDERPRICED
Confidence
MEDIUM
Kelly Reference
N/A
PRISM Sizing (¼ Kelly · cap 5%)
N/A
PRISM REASONING
  • Available evidence indicates the 12th integrated Starship flight has already occurred within the window
  • If that FAA-licensed launch is confirmed as Flight 12, resolution should be YES
FACTORS FOR
  • +Verified sources indicate a Starship 12th launch on May 19, 2026
  • +Starship is in active test cadence with multiple prior launches
  • +Only one successful occurrence of Flight 12 is required
  • +No evidence of an indefinite FAA stand-down
  • +Social and news analysis heavily favor a YES outcome
FACTORS AGAINST
  • Some ambiguity whether the May 19 launch is officially Flight 12
  • Launch listing comes from a smaller, non-official news site
RESOLUTION PATHS MODELED
FAA and primary sources recognize May 19, 2026 launch as Flight 1296%
If May 19 is mis-numbered, another launch occurs as Flight 12 pre-deadline2%
Evidence 50%
SOURCES (5)
last day
  • Starship - Next Spaceflightnextspaceflight.com

    20 May 2026. 6:00 AM to 11:00 PM. Primary. Beach and Road ... Booster 13 and Ship 31 were the Super Heavy and Starship pair launched on Starship Flight 6.

    May 19Open →
  • Launch Schedule - Space Launch Nowspacelaunchnow.me

    A spaceflight launch schedule for Cape Canaveral/Kennedy Space Center, Vandenberg AFB, Wallops Island, SpaceX, Blue Origin, ULA, Rocket Lab and much more ...

    May 19Open →
  • SpaceX Launches Starlink 10-31 Mission from Cape Canaveral ...youtube.com

    Watch LIVE as SpaceX launches 29 more Starlink satellites aboard Falcon 9, to low-Earth orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space ...

    May 19Open →
  • May 18, 2026 – Our Awesome Universeawesome-universe.com

    May 18, 2026: ESA/China launch of SMILE mission (link); May 19, 2026: SpaceX Starship 12th launch (link); May 19-21, 2026: AIAA ASCEND 2026 (link); May 31, 2026 ...

    May 19Open →
  • FAA (Federal Aviation Administration) resolution contextkalshi-public-docs.s3.amazonaws.com

    Source: FAA (Federal Aviation Administration) Resolution field: SpaceX launches Starship flight test number N before deadline. Outcome verified from FAA. Frequency: event-driven Contract terms: https://kalshi-public-docs.s3.amazonaws.com/contract_terms/SPACEX.pdf Known rule risks: $1.27M+ volume — massive tech/space speculation market; FAA is the SOLE resolution source — NOT SpaceX announcements, NOT live streams; FAA data delay clause: if FAA data is delayed, market expiry shifts per Kalshi Rule 6.3b

    May 19Open →

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

4

Why the gap existed

Prism correctly identified 14.0% mispricing

CALIBRATION SCORECARD
PRISM ACCURACY
0.000
MARKET ACCURACY
0.026
EDGE
+25.2
Brier edge
PRISM's probability estimate was more accurate than the market price.
5

How this forecast played out

1.PRISM analyzed Will SpaceX launch another Starship by May 31, 2026?, classifying it as underpriced at 84.0%.
2.Forecast classification: MODERATE UNDERPRICED — PRISM estimate 98.0% vs market 84.0%.
3.Kelly reference at forecast time: —% (¼ Kelly, capped at 5%; mathematical reference only — not a position recommendation).
4.Outcome: resolved YES.

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: v0.9.129-official-resolver-evidence·Forecasted: May 19, 2026·Resolved: June 1, 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.