Bitcoin Bettors Push Kalshi and Polymarket to a Record $2.7B Week

Crypto contracts on Kalshi and Polymarket hit a record $2.7 billion in weekly volume, driven mostly by short-term bets on where bitcoin heads next. Weekly notional volume in crypto-related contracts on Kalshi and Polymarket reached a record $2.7 billion , with most of that money going into short-term bets on bitcoin and other crypto price moves. Consequently, crypto now ranks second only to sports on both platforms. Bitcoin spent the past week chopping between roughly $80,000 and $84,000, a small range that can reward quick in-and-out trades. On Kalshi, crypto volume reached about $8.17 billion between Sept. 1 and 28, with roughly $7 billion, or 86%, coming from 15-minute markets. Crypto’s share of Kalshi’s total volume jumped from about 2.6% before the format launched to 14.5% in September. Polymarket’s U.S.

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