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Kalshi September volume reaches 59.3 billion dollars as sports share rises to 78 percent, USA Today reports

  • Kalshi September volume reaches 59.3 billion dollars as sports share rises to 78 percent, USA Today reports — USA Today reported Kalshi notional volume reached 59.3 billion dollars in September 2026, more than 20 times a year earlier, with sports accounting for 78 percent of Kalshi volume and 82 percent of Polymarket volume in July 2026 according to a Pew Research Center analysis of The Block data. (USA Today)

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