[Polymarket to Expand Fee Structure on March 30 to Cover Various Markets Including Finance and Politics] Deep Tide TechFlow reports that on March 24, according to Cointelegraph, the decentralized prediction market platform Polymarket announced it will expand its fee structure starting March 30, 2026. The coverage will extend beyond the original cryptocurrency and sports categories to include multiple market categories such as finance, politics, economics, culture, weather, and technology, with differentiated fee rates applied to each category.