Sports prediction markets

Compare volume across venues, sports, and leagues

Daily trade volume from Kalshi, Polymarket, Polymarket International, Nadex, and Gemini — normalized, filterable, and shareable.

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Multi-venue

Side-by-side views of volume from major US and international sports prediction markets.

Filter by sport, league, bet type, and date range. Share a link that preserves your view.

Heatmaps and share charts for quick insight.