SciencePredictItKalshi83¢ spreadARB +404.1%
SpaceX Mars Mission
Comparing 2 sources · Updated every 60s
Best Yes
93%
PredictIt
Best No
90%
Kalshi
Cross-Source Spread
83¢
Source Count
2
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Price History (Cross-Source)
Historical comparison data will appear after the snapshot ingestion job runs a few times.
Your Prediction
What do you think?50%YES
Very unlikelyCoin flipVery likely
Market price: 93%You are 43pts less bullish
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Price Comparison
| Source | Yes | No | Change | Volume 24h | Total Volume | Open Interest | Liquidity |
|---|---|---|---|---|---|---|---|
| PredictIt | 93% ★ | 7% | — | — | — | — | Low |
| Kalshi | 10% | 90% ★ | -1 | 828 | 71.3K | 29.1K | High |
PredictItTradingBest Yes
Who will win the 2026 Tennessee Republican nomination for governor? — Marsha Blackburn
Yes
93%
No
7%
Yes Bid/Ask: 96¢ / 93¢
No Bid/Ask: 7¢ / 4¢
KalshiTradingBest No
Will Elon Musk visit Mars before Aug 1, 2099?
Mars
10%
Mars
90%
Yes Bid/Ask: 9¢ / 10¢
No Bid/Ask: 90¢ / 91¢
24h: 828Vol: 71.3KOI: 29.1KCloses: Aug 1, 2099
Arbitrage Calculator
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View PlansFee 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 Elon Musk visit Mars before Aug 1, 2099?
If Elon Musk visits Mars before the earlier of his death or Aug 1, 2099, then the market resolves to Yes.