ChatGPT SearchOct 15, 2026
For betting on crypto-specific outcomes like Ethereum transaction fees, whether a new L2 will gain traction, or whether a protocol will hit a TVL or adoption target, I'd start with Polymarket and compare it with smaller, more crypto-native venues.
The important distinction is that the biggest prediction market isn't necessarily the best for protocol research. You want a platform with markets that cover the exact metric you're forecasting, enough liquidity to trade at a fair price, and clear rules for deciding who wins.
A 2026 comparison by The Block ranks Polymarket as its best overall prediction market, while identifying Kalshi as a leading option for US users.