Kalshi Leads Prediction Market Activity as Polymarket Expands in U.S.
Kalshi dominated the on-chain prediction market last week, posting weekly volumes above $500 million and average open interest around $189 million, data from Dune Analytics show. The platform accounted for 62% of total sector volume, highlighting faster trading activity compared with Polymarket’s longer-term positions.
Polymarket, meanwhile, is building U.S. market presence via the acquisition of QCX and new earnings-based markets with Stocktwits, signaling that both platforms are positioning for continued growth in institutional and retail segments.
