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Polymarket Investors: What Traders Need to Know

Polymarket investors are traders buying binary or multi-outcome shares that settle at $1.00 for a winning outcome. The marketplace runs on Polygon, uses pUSD for settlement, and matches orders through a CLOB. If you trade for profit, understanding intra-market arbitrage and risks (resolution, slippage, fees) is essential.

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How Polymarket works for investors

Polymarket lists binary and multi-outcome markets where each outcome is an ERC-1155 token under the Gnosis Conditional Token Framework. Trades settle in pUSD on Polygon; Polymarket sponsors gas via a Relayer so traders don't need POL. The exchange enforces tick sizes and uses UMA for resolution reporting, which can be disputed and pause settlement.

For investors this means prices represent implied probabilities summing to $1.00 across outcomes. You can place limit or market (FAK) orders against the Central Limit Order Book. Maker fees are zero; taker fees vary by category.

How intra-market arbitrage appears to investors

Intra-market arbitrage happens when the sum of best-ask prices across complementary outcomes is below $1.00. For a binary, buy YES and NO at their best asks; for multi-outcome, buy a complete set. The difference between $1.00 and your purchase cost is the mathematical edge before fees and execution costs.

Arbitrage opportunities on Polymarket can be tight and short-lived. Historically, professional arbitrageurs extracted large sums from the platform; spreads are often measured in percentage points and vanish quickly on liquid books.

Risks every Polymarket investor must consider

Do not treat spreads as unconditional profit. Resolution risk (UMA disputes), settlement timing delays, partial fills, tick-size rounding, taker fees, and smart-contract risk can all erode expected returns. Geo-restrictions and platform policy changes can also limit ability to open or close positions.

If you route orders through third-party Builders or bots, check attribution, limits, and fee structures. VPNs are prohibited by Polymarket's Terms of Service and can lead to blocked orders.

Why traders use PolyArb

PolyArb focuses on intra-Polymarket arbitrage with a live bot: $99/month, non-custodial, Telegram and Discord alerts, and a stated $7.62 minimum guaranteed edge per trade. It advertises low-latency execution (40ms) versus ~800ms for free bots, which matters when spreads close in seconds.

PolyArb automates detection and order routing but does not remove underlying risks like resolution disputes or settlement delays. Use it as an execution tool while understanding the platform mechanics and fee profile.

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FAQ

Are Polymarket investors profitable long term?
Profitability depends on strategy, fees, execution speed, and risk management. Intra-market arbitrage can be profitable when you consistently capture edges after fees and slippage, but resolution and operational risks remain.
What fees do Polymarket investors pay?
Maker fees are zero; taker fees vary by category (0%–1.8% range). Exact fee rates depend on market category—Geopolitics is fee-free—so always check the market's fee settings before trading.
Can I use PolyArb if I'm blocked in my country?
Polymarket enforces geo-restrictions. If your jurisdiction is blocked from placing new orders, third-party tools cannot lawfully bypass those restrictions. Do not use VPNs to evade geo-blocking; that violates Polymarket's Terms of Service.
How fast does PolyArb execute arb trades?
PolyArb advertises 40ms latency versus roughly 800ms for free bots. Faster execution reduces the chance that short-lived spreads disappear before your order fills, but it doesn't eliminate settlement, resolution, or smart-contract risks.

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