Polymarket is replacing single-price snapshot settlement with a time-weighted average price (TWAP) mechanism for its short-duration crypto prediction markets. The platform will roll out the upgrade on August 7, 2026 at 00:00 UTC, covering seven major crypto assets including Bitcoin, Ethereum, Solana, XRP, HYPE, BNB, and Dogecoin. The change, powered by Chainlink Data Streams oracles, aims to make last-second price manipulation prohibitively expensive. A one million dollar liquidity rewards program accompanies the upgrade: 550,000 dollars for 5-minute markets, 350,000 dollars for 15-minute markets, and 100,000 dollars for 4-hour markets.
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