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PredictIt: how it compares to Polymarket and PolyArb

PredictIt is a US-focused political prediction market that historically operated under a CFTC-related framework. Traders search for it when comparing platforms for political markets, fees, and liquidity. Polymarket is a different product—decentralised, on Polygon, using pUSD and the CLOB—and PolyArb is an intra-Polymarket arbitrage bot built for traders who want low-latency execution and guaranteed minimum edge. Below explains core differences and where PolyArb fits your workflow.

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What PredictIt is

PredictIt was designed as a US political betting exchange with a regulatory pathway distinct from typical crypto markets. It lists political contracts and has features aimed at retail political traders, including capped investment per contract and KYC for US users. PredictIt’s model focuses on US regulation and retail access, which differs from Polymarket’s decentralised, Polygon-based infrastructure that uses pUSD and the Gnosis CTF for outcome tokens.

How Polymarket differs

Polymarket runs on Polygon, uses pUSD as settlement currency, and matches orders with a Central Limit Order Book (CLOB). Trades are gasless for end users via Polymarket’s Relayer; wallets can be Gnosis Safe or proxy wallets like MetaMask and others listed in the docs. Resolution on Polymarket uses the UMA optimistic oracle. Markets can be binary or multi-outcome, and fair prices sum to $1.00 across outcomes; multi-outcome arbitrage arises when the sum of best asks is below $1.00.

Where PolyArb fits

PolyArb is a paid arbitrage bot for Polymarket: $99/month, non-custodial, live today. It claims 40ms latency versus ~800ms typical for free bots, and provides a $7.62 minimum guaranteed edge per trade, with Telegram and Discord alerts to monitor fills. PolyArb focuses on intra-market binary and combinatorial arbitrage inside Polymarket’s CLOB, executing split/merge and order placement quickly to capture short-lived spreads without holding custody of funds.

Trading considerations and risks

Arbitrage spreads are mathematical but not without risk. You must consider resolution disputes (UMA), partial fills and slippage, variable taker fees, settlement timing, and smart-contract risk. Polymarket’s taker fees vary by category and maker fees are zero. Geo-restrictions also matter: some countries and regions are blocked for order placement. PolyArb automates execution but cannot change Polymarket’s geo rules or eliminate oracle or regulatory risks.

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Try PolyArb today — $99/month, non-custodial, 40ms latency, $7.62 minimum guaranteed edge, with Telegram and Discord alerts to keep you informed.

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FAQ

Is PredictIt the same as Polymarket?
No. PredictIt is a US-focused political market with a different regulatory setup. Polymarket is a decentralised exchange on Polygon using pUSD, a CLOB, and UMA for resolutions.
Can PolyArb trade on PredictIt?
No. PolyArb is built for intra-Polymarket arbitrage and interacts with Polymarket’s CLOB and CTF operations. It does not route orders to PredictIt or other platforms.
What does the $7.62 minimum guaranteed edge mean?
PolyArb advertises a $7.62 minimum guaranteed edge per executed arbitrage trade as part of its product value. This is a product claim; remember all trades carry operational and oracle risks.

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