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A prediction market lets participants stake collateral on the outcome of a future event. Each market issues position tokens—long (YES) and short (NO)—that represent a claim on the outcome. Participants trade these tokens through an automated market maker (AMM), and winning positions are redeemed for collateral after an oracle resolves the event. On Arc, prediction markets benefit from sub-second finality, stable USDC-denominated gas fees, and standard EVM tooling, making it practical to run active markets with frequent trades at low cost. For stablecoin exchange and swap infrastructure, see Stablecoin FX. For agent-initiated market participation, see Agentic Economy.

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Sample apps

Open-source examples on GitHub you can fork and customize.

Arc prediction markets

Decentralized prediction markets with UMA Optimistic Oracle V2 resolution, constant-product AMM trading, and collateral-backed position tokens on Arc Testnet.

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Quickstarts

Get up and running with prediction market contracts in minutes.

Deploy on Arc

Beginner. Deploy, test, and interact with a Solidity smart contract on Arc using Foundry.

Monitor contract events

Intermediate. Set up webhooks and event monitors to track onchain activity from your deployed contracts.

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Why Arc for prediction markets

Arc is purpose-built for stablecoin finance. These capabilities directly support prediction market applications.
Deterministic finality confirms position token trades and collateral deposits in under a second, removing settlement uncertainty from active markets.
USDC-denominated gas at stable, predictable prices makes frequent AMM trades economical. See gas and fees for current rates.
Integrate UMA Optimistic Oracle, Chainlink, or other providers from the oracles ecosystem to resolve markets without a centralized arbitrator.
Position tokens are standard ERC-20 tokens, tradable on any AMM and transferable between wallets using standard EVM tooling. See contract addresses for available tokens.
Built-in integration points for wallet screening from Elliptic and TRM Labs, essential for regulated prediction market products.
Deploy and iterate on Solidity market contracts using Hardhat, Foundry, or any EVM-compatible tools. See EVM compatibility for differences to check before deploying.