Kalshi is pulling forward within the prediction market race, capturing a dominant share of buying and selling quantity whilst rivals like Polymarket push into regulated U.S. territory.
From Sept. 11 to 17, Kalshi accounted for 62% of whole quantity within the on-chain prediction market sector, based on knowledge from Dune Analytics, whereas Polymarket’s stood at 37%. The previous’s weekly buying and selling tempo topped $500 million, with a median open curiosity of round $189 million.

Its quantity is past that of Polymarket, which stood at $430 million, and its common open curiosity of $164 million, which suggests “sticker positions on Polymarket and sooner turnover on Kalshi.”
Polymarket’s longer-term markets, which regularly stretch over weeks or months, hold person funds locked in for longer intervals, basically.
This exhibits up within the open interest-to-volume ratio: Polymarket averaged 0.38, whereas Kalshi sat decrease at 0.29. That means Kalshi’s customers are buying and selling extra usually, whereas Polymarket’s positions have a tendency to take a seat.
Nonetheless, Polymarket is constructing out a larger place within the U.S. The platform has cleared its acquisition of QCX, a regulated derivatives change, to enter the nation once more.
It has additionally launched earnings-based markets with social investing platform Stocktwits, designed to let stockholders hedge earnings threat and analysts gauge market sentiment in actual time.
Learn extra: Polymarket Weighs $9B Valuation Amid Person Surge and CFTC Approval: The Info