Kalshi Tops Polymarket in Prediction Market Volume Amid U.S. Trading Surge
Kalshi dominated the on-chain prediction market last week, posting trading volumes exceeding $500 million and average open interest near $189 million, surpassing Polymarket, according to Dune Analytics.
From Sept. 11 to 17, Kalshi accounted for 62% of total sector volume, while Polymarket captured 37%. Analysts noted that Kalshi’s higher turnover reflects more active trading, compared with Polymarket’s longer-duration markets, which keep funds locked for extended periods.
Polymarket is expanding its U.S. presence, having completed its acquisition of QCX, a regulated derivatives exchange, and launching earnings-based markets with Stocktwits to help investors hedge and track real-time market sentiment.
About The Author
More Stories
Several bitcoin indicators continue to trend negatively, casting doubt on the bullish $70,000 support narrative
Another 500 bitcoin moved by Bhutan to exchanges, bringing total 2026 outflows above $150 million.
Circle’s recent decline may be overstated, with analysts pointing to a crypto bill that undercuts Coinbase’s edge.