96% — Will SpaceX launch another Starship before Aug 21, 2026
Leader: Before Oct 16, 2026 at 96% · Kalshi 96% · 4 contracts · $2K volume · medium confidence
Updated 2026-08-09 23:24:55 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 4 outcomes.

Why this matters:
Markets are pricing a 17% probability that SpaceX will launch another Starship by August 21, 2026—just three weeks away. The low probability reflects the tight timeline and SpaceX's historical launch cadence. Key drivers include the current state of launch infrastructure, any ongoing technical issues from recent tests, regulatory approvals, and available launch windows. The probability increases substantially to 42% for September 1st and 74% for September 18th, suggesting markets expect meaningful delays beyond the immediate August window. The main catalyst is whether SpaceX completes preflight checks and receives clearance for a launch attempt in the next 21 days. If no launch occurs by late August, the focus shifts to whether September brings operational readiness or points to more substantial delays pushing timelines into October.

Key factors:
- SpaceX's Starship launch cadence in 2026 and current vehicle readiness status
- Outstanding technical or regulatory approvals required for the next scheduled launch attempt
- Historical turnaround time between Starship tests and whether recent launches identified issues requiring extended repair
- Available launch windows at Starbase and any weather or facility constraints in late August
- Market's probabilistic gap between Aug 21 (17%) and Oct 16 (87%) reflects expected 6-week launch window rather than imminent readiness

Contracts:
- Will SpaceX launch another Starship before Oct 16, 2026?: Before Oct 16, 2026 — 96¢ Kalshi $0 (weight 0%)
- Will SpaceX launch another Starship before Oct 1, 2026?: Before Oct 1, 2026 — 94¢ Kalshi $0 (weight 0%)
- Will SpaceX launch another Starship before Sep 18, 2026?: Before Sep 18, 2026 — 82¢ Kalshi $85 (weight 4%)
- Will SpaceX launch another Starship before Sep 1, 2026?: Before Sep 1, 2026 — 28¢ Kalshi $2K (weight 96%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-08-09T23:20:51.188Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "96% per prediction markets (SimpleFunctions, August 2026)"
Canonical: https://simplefunctions.dev/answer/spacexstarship-14
Full data: https://simplefunctions.dev/api/public/query?q=Will%20SpaceX%20launch%20another%20Starship%20before%20Aug%2021%2C%202026
Provider: SimpleFunctions — https://simplefunctions.dev