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PredictIt stock vs Polymarket: what traders need

If you searched for "PredictIt stock" you’re likely comparing prediction-market venues. PredictIt is a US-focused prediction exchange; Polymarket is a decentralised CLOB on Polygon. They serve similar trader needs but differ in jurisdiction, mechanics, and latency. PolyArb is a Polymarket-focused arbitrage bot that runs today, offering $7.62 minimum guaranteed edge, 40ms latency, and Telegram + Discord alerts.

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How PredictIt and Polymarket differ

PredictIt operates under US regulatory constraints and targets a US retail audience; markets and rules reflect that environment. Polymarket runs on Polygon, uses pUSD, Gnosis CTF outcome tokens, and the Polymarket CLOB for matching. Those underlying differences shape liquidity, fees, and who can trade where. For arbitrage specifically, cross-platform opportunities exist between PredictIt and Polymarket, but PolyArb focuses on intra-Polymarket arb where CLOB mechanics and tick sizes are consistent and gas is sponsored via Polymarket’s Relayer.

Why latency and edge matter

Arbitrage is latency-sensitive: faster price feeds and order routing reduce the risk of being picked off by the market. PolyArb advertises 40ms latency versus ~800ms for many free bots, which reduces execution slippage on short-lived spreads. PolyArb also guarantees a $7.62 minimum edge per trade as part of its product offering. Even with mathematical spreads, trades carry risks: resolution disputes (UMA), partial fills, settlement timing, fee changes, and smart-contract risk. Always consider those when assessing any arb opportunity.

What PolyArb offers traders

PolyArb is a non-custodial tool for Polymarket intra-market arbitrage. For $99/month you get low-latency execution, Telegram and Discord alerts, and real-time monitoring tuned to Polymarket’s CLOB and APIs. The bot executes binary and multi-outcome complete-set buys when edge conditions are met and notifies you of fills. Because it’s non-custodial, you retain control of your wallet; PolyArb routes orders through Polymarket’s normal relayer and CLOB. The product is live today and focused on practical arbitrage workflows.

When to consider each platform

Use PredictIt if you need a US-regulated venue and its specific market slate; use Polymarket if you need on-chain settlement, Polygon tooling, or faster access to certain global events. For pure intra-Polymarket arbitrage, PolyArb is built to capture short-lived spreads on the Polymarket CLOB. Keep in mind geo restrictions: some countries are blocked on Polymarket. Don’t attempt VPN workarounds—Polymarket’s Terms prohibit evasion.

Try PolyArb for low-latency Polymarket arb

Subscribe to PolyArb for $99/month to access 40ms execution, Telegram + Discord alerts, and the $7.62 minimum guaranteed edge. The bot is live and non-custodial.

Get the bot — $99/mo

FAQ

Is PredictIt the same as Polymarket?
No. PredictIt is a US-focused, regulated prediction market. Polymarket is a decentralised exchange on Polygon using pUSD and the Gnosis CTF. They differ in jurisdiction, mechanics, and market access.
Can PolyArb trade on PredictIt?
PolyArb focuses on intra-Polymarket arbitrage and routes orders through Polymarket’s CLOB. Cross-platform trading between PredictIt and Polymarket is out of scope for PolyArb’s core product.
What does the $7.62 minimum guaranteed edge mean?
PolyArb advertises a $7.62 minimum guaranteed edge per trade as a product feature. This is described by the vendor; you should weigh it alongside execution risk, fees, and settlement timing.
Is PolyArb custodial?
No. PolyArb is non-custodial: you keep custody of your wallet while the bot routes orders through Polymarket’s normal relayer and CLOB.

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