Kalshi hits $1B non-sports weekly volume, up from $35.2M a year ago

Kalshi recorded $1 billion in non-sports weekly trading volume for the first time, up from $35.2 million a year earlier. The same week, Polymarket posted $442.3 million in non-sports weekly volume, putting Kalshi at more than 2.2x larger on that measure. The shift follows a period in which Polymarket led non-sports activity earlier in the year while Kalshi was more associated with sports contracts.