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Polymarket to adopt TWAP settlement for crypto up/down markets on August 7

Polymarket to adopt TWAP settlement for crypto up/down markets on August 7

The market operator will replace single-price snapshots with 30-second and 60-second averaging windows, offer $1 million in liquidity rewards through August, and add Chainlink-based data infrastructure ahead of the rollout.

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Fact Check
Four independent news outlets (Odaily English, Binance News, KuCoin, Coincu) published same-day (2026-07-30) reports that agree precisely on every element of the claim: TWAP settlement replacing single-price snapshots, August 7 rollout, 30-second window for 5-minute markets and 60-second window for 15-minute/4-hour markets, $1M August liquidity rewards, and Chainlink-based TWAP data infrastructure (testnet live, mainnet/RTDS scheduled August 4). The only caveat is that the official Polymarket Predictions Changelog had not yet posted this update at fetch time (latest entry 2026-07-17), so a fully authoritative primary source was not confirmed; the consistent multi-source corroboration makes the claim likely true.
Summary

Polymarket will switch its crypto up/down markets to TWAP (time-weighted average price) settlement from 00:00 UTC on August 7, replacing the single-price snapshot method. The platform set a 30-second TWAP for 5-minute markets and a 60-second TWAP for 15-minute and 4-hour markets. It also said it will provide $1 million in liquidity rewards across eligible crypto markets throughout August. As part of the rollout, Chainlink TWAP testnet feeds are already live, while mainnet feeds and Polymarket’s Real-Time Data Streaming infrastructure are scheduled to launch on August 4. Builders will be able to access the data through Chainlink Data Streams or Polymarket’s public WebSocket, with integration guides, SDK examples and feed IDs. The changes are aimed at reducing the effect of brief price spikes around settlement and making outcomes harder to influence through short-lived moves.

Terms & Concepts
  • TWAP: Time-weighted average price calculated over a set window instead of using a single snapshot.
  • Chainlink Data Streams: A data delivery service that provides market data feeds for applications that need timely pricing information.
  • liquidity rewards: Incentives offered to encourage deeper trading activity in eligible markets.