One platform holds 84,29% of every dollar locked in crypto prediction markets. Polymarket sits at $353,44 million of a $419,3 million category spread across 121 protocols, and the next largest is $29,46 million. Published rankings of this market open with Augur, which holds $1,93 million, or 0,46%. Figures read from DefiLlama on 4 September 2026.
| Platform | Value locked | Share | Chain | Focus |
|---|---|---|---|---|
| Polymarket International | $353,44M | 84,29% | Polygon | General events |
| Rain | $29,46M | 7,03% | Arbitrum | General events |
| Predict Fun | $11,25M | 2,68% | Multi-chain | General events |
| PredictStreet | $4,09M | 0,97% | ADI | General events |
| OPINION | $3,55M | 0,85% | BNB Chain | General events |
| Sport.fun | $2,76M | 0,66% | Base | Sport |
| Gnosis Protocol v1 | $2,44M | 0,58% | Ethereum | General events |
| Augur | $1,93M | 0,46% | Ethereum | General events |
| Azuro | $1,43M | 0,34% | Multi-chain | Sport betting infrastructure |
| Liquidity House | $1,18M | 0,28% | Etherlink | General events |
How this ranking was built
Order is set by value currently locked in each protocol, from DefiLlama’s prediction market category on 4 September 2026. The category held 121 protocols and $419,3 million. The chain column is where each one actually settles, and the focus column separates general event markets from sport-specific infrastructure.
Locked value is the capital sitting in open positions and liquidity, which is the closest public proxy for whether a market has anyone in it. Traded volume would be a better measure of activity and is not published consistently across these protocols, so we did not mix the two.
The platform every list names first holds 0,46%
Rankings of crypto prediction markets published in 2026 open with Augur, usually described as the pioneer of the category, sometimes alongside Omen and PlotX. Augur holds $1,93 million. Polymarket, which those lists mention second or third, holds 183 times more.
This is what happens when a list is assembled from the history of a category rather than from its current state. Augur was genuinely first and is genuinely still running; it is also eighth by size, behind a sport-specific venue on Base. Neither Omen nor PlotX appears in the top ten at all. Every figure here can be re-checked in a minute, which is the whole reason to prefer it.
A one-protocol market, and what that implies
- 84,29% in one place. No other DeFi category we have measured this week comes close. Stablecoins are 58,9% concentrated in Tether, liquid staking 46,4% in Lido. Prediction markets are a single venue with a long tail attached.
- The whole category is $419,3 million. That is smaller than the ninth largest RWA product and roughly a hundredth of the lending market. Coverage volume and capital volume have almost no relationship here.
- Everything below third place is under $5 million. Seven of the ten entries are small enough that a single large position would move them, which makes ranking them against each other close to meaningless.
- For anyone building here, the distribution problem is not competing with Polymarket on features. It is that liquidity concentrates hard in this format, and a market with no counterparty is not a market.
Chains follow settlement, not fashion
Eight of the ten run on a single chain, and the chains are scattered: Polygon, Arbitrum, BNB Chain, Base, Ethereum, Etherlink. Only Predict Fun and Azuro are multi-chain, and both are small. There is no shared network for this category the way Solana anchors memecoin trading.
That reflects what these products need, which is cheap settlement of many small positions rather than deep composability with other protocols. It also means a prediction market has almost no cross-chain liquidity story to tell, which separates it from the venues we compared in the ranking of cross-chain DEX venues.
What this ranking does not settle
Locked value is not activity. A venue can hold capital in long-dated positions and see very little trading, and this table cannot separate those. It also says nothing about resolution quality, which is the actual product risk here: a prediction market is only worth using if the outcome is settled correctly and promptly, and no public figure measures that.
Regulatory exposure differs sharply between these venues and is not in the table either. And the figures move: this category grew from near nothing on the back of two election cycles. For adjacent markets measured the same way, see our rankings of crypto lending platforms by value supplied and liquid staking protocols by value staked.
Frequently Asked Questions
What is the biggest crypto prediction market in 2026?
Polymarket, with $353,44 million locked on 4 September 2026, which is 84,29% of the whole category. Rain is second at $29,46 million and Predict Fun third at $11,25 million. The category totals $419,3 million across 121 protocols, and the top ten are 98,1% of it.
Is Augur still a major prediction market?
Not by size. Augur holds $1,93 million, which is 0,46% of the category and eighth place, behind a sport-specific venue on Base. Published rankings still open with it because it was first, not because it is large. Polymarket holds 183 times more.
How large is the crypto prediction market sector?
$419,3 million locked across 121 protocols on 4 September 2026. That is smaller than a single mid-sized tokenised Treasury fund and roughly one hundredth of DeFi lending. The sector gets coverage far out of proportion to the capital in it.
Why is this category so concentrated?
Because a prediction market needs a counterparty for every position, so liquidity attracts liquidity harder here than in an automated market maker. One venue holds 84,29% and everything below third place is under $5 million, small enough that a single large position moves the ranking.
Which chain do prediction markets run on?
No single one. Eight of the ten largest are on a single chain each, spread across Polygon, Arbitrum, BNB Chain, Base, Ethereum and Etherlink. These products need cheap settlement of many small positions rather than deep composability, so they follow fees rather than clustering on one network.
Related reading
For the settlement assets these venues price positions in, see our ranking of the biggest stablecoins by circulating supply.