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Kalshi's $454M Week Flips Polymarket's Crypto Lead
Kalshi posted $454M in crypto prediction contract volume last week, erasing Polymarket's 91% market share lead from early January. The regulatory edge drives the shift.
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Kalshi reported $454 million in crypto-themed prediction contract volume last week. That single-week figure erases the market share advantage Polymarket held at the start of the year. In the first week of January, Polymarket commanded 91.11% of crypto contract volume across the two largest prediction platforms. The reversal is complete.
The shift is not a blip in weekly flow data. It signals a structural change in how traders access crypto event contracts. Kalshi is a CFTC-regulated exchange that lists binary outcome contracts on Bitcoin and Ethereum price levels, regulatory filings, and policy decisions. Polymarket operates primarily on-chain and has faced enforcement uncertainty in the U.S. The regulatory gap is now translating into volume.
Kalshi's $454M Week Erases Polymarket's January Advantage
Polymarket's early-2026 dominance reflected first-mover momentum and deep liquidity in crypto-native event markets. Kalshi has been adding contract types steadily. The $454 million figure represents a breakout week. The number implies a run-rate above $23 billion annually, though weekly volatility is high. Kalshi's crypto volume in that week likely exceeded Polymarket's total crypto contract volume for the same period, based on the 91.11% starting point.
Kalshi's contracts are settled in USD and subject to exchange-level compliance. Polymarket uses USDC and smart contracts. That introduces execution risk and withdrawal delays during high-traffic events. Kalshi's structure appeals to traders who want regulated settlement and direct fiat on-ramps. The volume data suggests those users are flowing in.