Comparison
Polymarket vs PredictIt (2026)
PredictIt is run by Victoria University of Wellington under a CFTC no-action letter. It pioneered modern political prediction markets but is constrained by an $850 position limit, a 5% withdrawal fee, and 10% on profits. Polymarket has no individual position limits and trades on-chain.
Verdict
Polymarket is the venue for any trader who wants real size and competitive fees. PredictIt is now mostly a curiosity for US researchers and small political bettors.
En un coup d’œil
| Polymarket | PredictIt | |
|---|---|---|
| Settlement asset | USDC.e on Polygon | USD with Aristotle clearing |
| Position limit | None per individual | $850 per market per trader |
| Fees | 0%–1.8% taker | 10% on profits + 5% withdrawals |
| KYC | Wallet only | Full KYC, US residents only |
| Deposits | On-chain or Coinbase OnRamp | Credit/debit card or ACH |
| Geography | Blocks ~30 jurisdictions | US only |
| Public API | Yes, full | Public read-only feed |
| Categories | Politics, crypto, sports, world | US politics |
Idéal pour: Polymarket
Anyone who wants to size beyond a few hundred dollars per market.
Idéal pour: PredictIt
Academic study of micro political markets and very small recreational positions.
À surveiller
- PredictIt's 10% profit fee plus 5% withdrawal fee makes most arbitrage uneconomic.
- PredictIt is winding down many markets following CFTC actions in 2022–2024; check status before depositing.
FAQ
- Why is PredictIt limited to $850 per market?
- It's a condition of the original 2014 CFTC no-action letter that lets PredictIt operate as a research project at Victoria University of Wellington. The cap is a regulatory ceiling, not a Polymarket-style design choice.