TechFlame News, according to The Block, prediction market platforms Kalshi and Polymarket both hit record monthly trading volumes in November. Data from The Block shows that Kalshi's spot trading volume in November increased to $5.8 billion from $4.4 billion in October, a month-on-month growth of 32%. Polymarket also performed strongly, with its trading volume rising to over $3.7 billion in November from $3.02 billion in October, a month-on-month increase of 23.8%. The combined trading volume of the two platforms in November approached $10 billion, continuing the record-breaking activity since the summer. Market share data indicates that Kalshi and Polymarket currently dominate global prediction market traffic, forming a rapidly consolidating duopoly.