The Short Version
- Trading fee: 1% per trade (goes to liquidity providers)
- Gas fees: $0 — PrometheX pays them all
- Account creation: Free
- Claiming winnings: Free
Trading Fee
Every time you buy or sell shares, a 1% fee is applied to your trade amount. This fee goes entirely to liquidity providers — the people who put money into the pool that makes trading possible. Example:- You buy $100 worth of Yes shares
- $1.00 goes to liquidity providers as a fee
- $99.00 is used to buy shares
The trading fee is the default rate of 1% (100 basis points). Some markets may have different fee rates — always check the market details page to see the exact fee before trading.
Where does the fee go?
| Recipient | Share | Description |
|---|---|---|
| Liquidity providers | 100% | People who add funds to the market pool earn all trading fees proportional to their share of the pool |
Gas Fees — None!
On most crypto platforms, every action costs a gas fee — a small payment to the blockchain network for processing your transaction. These fees can range from a few cents to several dollars depending on network congestion. On PrometheX, you pay zero gas fees. The platform covers all blockchain transaction costs using a technology called account abstraction (specifically, a paymaster — a smart contract that sponsors transaction fees on your behalf). This applies to everything:| Action | Gas fee |
|---|---|
| Buying shares | $0 |
| Selling shares | $0 |
| Adding liquidity | $0 |
| Removing liquidity | $0 |
| Claiming winnings | $0 |
| Creating your account | $0 |
Gas-free trading is possible because PrometheX runs on Arbitrum (a fast, low-cost blockchain) and uses ERC-4337 account abstraction to sponsor all transaction costs. You never need to hold ETH or any other token for gas.
Claiming Winnings
When a market resolves and you hold winning shares, claiming your USDC payout is completely free. No fees are deducted from your winnings. If you bought 100 shares at $0.40 each and your side wins:- You spent: $40.00 (plus ~0.40 in trading fees)
- You claim: $100.00 (100 shares × $1.00)
- Your profit: ~$59.60