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Polymarket news: latest platform updates and trading notes

If you searched for "polymarket news" you want the latest platform-level changes that affect trading: API surfaces, market mechanics, fees, and resolution risk. Polymarket runs on Polygon, settles in pUSD, and uses the Gnosis CTF with UMA for resolution. Below are the practical updates traders care about and what they mean for arbitrage strategies.

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Recent platform changes that matter to traders

Polymarket’s core stack is stable: Polygon PoS network, pUSD settlement, Gnosis CTF outcome tokens, and UMA for resolution. The public APIs are Gamma, Data, and CLOB; use their exact base URLs for programmatic access. Order books and market WebSocket feeds provide real-time ticks and best_bid_ask events traders rely on. Polymarket also sponsors gas via a Relayer, so user trades are gasless. Fees are variable by category (0%–1.8% range; Geopolitics is fee-free). Builder Program tiers control relayer limits and attribution for third-party order routing.

What affects arbitrage opportunities now

Intra-market arbitrage depends on the arithmetic edge: when best asks across outcomes sum to less than $1.00 you can buy a complete set and lock the difference. Tick size, order-book depth, and taker fees determine practical profit after slippage. Near-resolution markets behave differently: tick size can tighten to $0.001 near extremes, and UMA disputes can pause settlement. Those dynamics shorten the window for clean arbitrage and increase execution risk.

How PolyArb fits into Polymarket news

PolyArb is a non-custodial arbitrage bot built for Polymarket: $99/month, 40ms latency vs ~800ms for free bots, Telegram and Discord alerts, and a $7.62 minimum guaranteed edge per trade. It routes orders through the CLOB and handles CTF split/merge/merge operations via the Relayer. PolyArb is a tool for execution and monitoring; it does not eliminate platform risks. Resolution disputes, partial fills, fee changes, and geo restrictions remain live risks you must consider.

Practical takeaways for traders

Subscribe to data feeds (Gamma, Data, CLOB) and monitor tick_size_change and best_bid_ask WebSocket events to capture short-lived spreads. Factor taker fees and possible partial fills into minimum acceptable edge calculations. If you follow Polymarket news for strategy, track Builder Program changes and fee adjustments — they materially change the economics of market-making and arbitrage.

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FAQ

Where can I get official Polymarket API updates?
Polymarket exposes three REST APIs — Gamma, Data, and CLOB — and a market WebSocket. Use the exact base URLs from Polymarket documentation for programmatic access and monitor rate limits on the Gamma /markets endpoint.
Does Polymarket charge gas fees for trades?
No. Polymarket sponsors gas through a Relayer (a Gas Station Network model). Users still pay taker fees by category, which currently range up to 1.8%.
Are arbitrage opportunities on Polymarket risk-free?
No. Intra-market arithmetic spreads can be captured, but risks include UMA resolution disputes, settlement timing, slippage and partial fills, fee changes, and smart-contract risk. PolyArb automates execution but does not remove platform risks.

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