Polymarket will begin charging trading fees across nearly all market categories on March 30, expanding well beyond the crypto and sports contracts that have carried fees since earlier this year.
The prediction market on Monday announced its new structure in politics, finance, economics, culture, weather and tech.
What The Fees Look Like
The fee model is probability-based rather than a flat commission, meaning fees are highest when a contract sits near 50% and shrink toward zero as outcomes become more certain.
Crypto gets hit hardest at 1.80%, up from 1.56%. Economics lands at 1.50%.
Culture, weather and a few smaller categories sit at 1.25%. Politics, the category that put Polymarket on the map, comes in at 1.00%. Sports stays cheapest at 0.75%.
Geopolitical and world events contracts remain fee-free for now.
This …
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