Prediction Market Open Interest Crosses $1B as Super Bowl Boosts Bets

Open interest (OI) across crypto prediction markets just hit $1 billion for the first time, a surge likely fueled by increased activity around the 2026 Super Bowl.

According to data from Artemis, open interest across platforms, Polymarket, Kalshi, Limitless, Opinion, and others, jumped above $1.1 billion for the first time on Feb. 7, setting a new all-time high. OI indicates the value of all currently active positions — in this case, the “yes” or “no” positions across predictions — that have yet to be resolved, making it an indicator of capital inflow and liquidity.

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