SpaceX Mars Mission
Comparing 2 sources · Updated every 60s
Best Yes
89%
PredictIt
Best No
78%
Kalshi
Cross-Source Spread
67¢
Source Count
2
Price History (Cross-Source)
Historical comparison data will appear after the snapshot ingestion job runs a few times.
Price Comparison
| Source | Yes | No | Change | Volume 24h | Total Volume | Open Interest | Liquidity |
|---|---|---|---|---|---|---|---|
| PredictIt | 89% ★ | 11% | — | — | — | — | Low |
| Kalshi | 22% | 78% ★ | -6 | 29 | 6.2K | 3.6K | High |
Who will win the 2026 Tennessee Republican gubernatorial nomination? — Marsha Blackburn
Will a human land on Mars before California starts high-speed rail?
Arbitrage Calculator
Buy YES on
Kalshi
22¢
Buy NO on
PredictIt
11¢
Total Cost
33¢
Gross Profit
67¢
Est. Fees
13.9¢
Net Profit
53.1¢
Return
160.9%
Disclaimer: Arbitrage calculations are estimates based on publicly listed fees. Actual fees, slippage, withdrawal timing, and market movement may affect realized returns. This is not financial advice. Always verify current fee schedules on each exchange before trading.
Fee Reference
| Exchange | Trading Fee | Profit Fee | Withdrawal Fee | Notes |
|---|---|---|---|---|
| PredictIt | None | 10% | 5% | Trading exchange |
| Kalshi | None | 7% | None | Trading exchange |
Resolution Rules
Kalshi — Will a human land on Mars before California starts high-speed rail?
If a human lands on Mars before California starts its high speed rail service for the public before Jan 1, 2050, then the market resolves to Yes.