ChainCatcher message: Polymarket official Rodrigo announced on Discord that the fee mechanism will be extended to the NCAA college basketball and Serie A markets. The fee structure is the same as the “15-minute cryptocurrency price fluctuation market,” where the taker pays the fee and the maker receives a rebate, but with different coefficients — the rate is 0.0175, the exponent is 1, and the maker rebate is 25%, resulting in overall lower costs.
Starting from 00:00 UTC on Wednesday, February 18, 2026, all new events related to NCAA and Serie A created after this time will be subject to the new fee mechanism. Existing events will not be affected. The first rebate distribution will occur at 00:00 UTC on February 19.
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