Kalshi Hits Record $19 Billion Week As Polymarket US Triples Fall Trade Volume
Kalshi‘s weekly contract volume climbed to $19.03 billion for Oct. 5-11, 2026, the very best of the six weekly totals reviewed. Polymarket US rebounded to 2.82 billion in reported Trade Volume, whereas Polymarket recorded $498.81 million in cash-dollar quantity. Weekend buying and selling accounted for a big share of exercise. Kalshi’s contract quantity rose throughout…
