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Polymarket Arbitrage: How PolyArb Finds Risk-Defined Edge

Polymarket arbitrage is the practice of buying priced outcome shares on Polymarket whose summed asks are less than $1.00 and locking the difference as a defined edge. PolyArb automates that process: non-custodial, gasless execution on Polygon using pUSD, 40ms latency, and a $7.62 minimum guaranteed edge per trade. Arbitrage math is straightforward, but execution risks—partial fills, slippage, fees, resolution disputes via UMA, and settlement timing—still exist and matter.

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How Polymarket arbitrage actually works

On Polymarket a binary market’s two outcome prices should sum to $1.00; multi-outcome markets sum to $1.00 across all legs. When bestAsk(YES) + bestAsk(NO) < $1.00, buying both legs creates an immediately redeemable complete set via CTF split/merge mechanics. The difference between $1.00 and the sum of asks is the edge before fees and slippage. Practical arb requires fast reads of the CLOB order book and immediate order placement.

Why execution speed and reliability matter

Spreads on liquid markets are often narrow and fleeting. Millisecond latency separates a profitable arb from one that reverts or fills partially. PolyArb offers 40ms latency versus ~800ms from free bots, plus FAK execution and builder-program routing where available. Faster tools reduce slippage and failed fills, but do not eliminate resolution or smart-contract risks.

Risks you still need to manage

Never treat an arb as unconditional profit. Risks include UMA disputes that delay or change settlement, taker fees (0%–1.8% depending on category), partial fills, tick-size behavior near extremes, and geo restrictions that can block order placement. Polymarket sponsors gas via its Relayer and uses pUSD; PolyArb is non-custodial and does not hold funds for you, but you must maintain pUSD in your wallet.

Where PolyArb fits vs other tools

PolyArb is focused on intra-Polymarket arbitrage, not cross-platform spreads against Kalshi, PredictIt, or Manifold. It bundles order routing, Telegram and Discord alerts, and a $99/month subscription. If you’re comparing tools, weigh latency, non-custodial architecture, guaranteed edge terms, and integration with Polymarket’s CLOB and CTF workflows.

Getting started and practical tips

Start by monitoring low-latency best-ask aggregates and set FAK size limits to avoid partial fills. Keep pUSD ready in a Polygon wallet (Proxy or Gnosis Safe), respect Polymarket’s geo restrictions, and account for taker fees and tick-size tightening near price extremes. Use alerts to move quickly; PolyArb sends Telegram and Discord notifications for matched opportunities.

Start capturing Polymarket arbitrage edges today

Subscribe to PolyArb for $99/month for 40ms latency, Telegram + Discord alerts, and a $7.62 minimum guaranteed edge per trade. PolyArb is non-custodial and live today.

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FAQ

What is polymarket arbitrage?
Polymarket arbitrage is buying outcome shares whose summed best asks are below $1.00 and locking the difference by creating a complete set through the CTF, then redeeming after resolution.
Does PolyArb guarantee profits?
PolyArb guarantees a $7.62 minimum edge per trade under its terms, but trades still carry risks: slippage, partial fills, taker fees, UMA disputes, and settlement timing can affect realized returns.
Do I need gas or special wallets to use PolyArb?
Polymarket sponsors gas via its Relayer and trading uses pUSD on Polygon. You need a supported wallet (Proxy wallet or pre-deployed Gnosis Safe) connected; PolyArb itself is non-custodial.
Can I arbitrage across Polymarket and other platforms?
Cross-platform arbitrage (against Kalshi, PredictIt, Manifold, etc.) is a different strategy and out of PolyArb’s core scope. PolyArb focuses on intra-Polymarket CLOB opportunities.

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