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Kalshi held 75.6 percent of tracked prediction market volume in the 30 days to October 7, DataWallet comparison shows
- Kalshi held 75.6 percent of tracked prediction market volume in the 30 days to October 7, DataWallet comparison shows — Kalshi accounted for 75.6 percent of tracked prediction market volume in the 30 days to October 7, 2026, compared with 11.6 percent for Polymarket US and 5.3 percent for Polymarket international, according to a DataWallet comparison. The same comparison put Kalshi open interest at 2.5 billion dollars against 339 million dollars on Polymarket international, with latest valuations of 22 billion dollars for Kalshi and 21 billion dollars for Polymarket. (DataWallet)
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