Prediction markets notch third straight record week on $10.8B volume and $1.5B open interest
Prediction markets set consecutive all-time highs across weekly volume and open interest, according to a16z crypto data published June 19 and June 25. Volume reached $10.8 billion for the week ended June 19, while open interest peaked at roughly $1.48 billion to $1.5 billion. The figures represent the biggest week ever for the sector and a sixfold increase in open interest. Sports betting, the World Cup, and potential finance events including a SpaceX IPO are cited as drivers of the surge. Kalshi is mentioned among platforms benefiting from the climbing activity. The data marks the third straight record-setting week for prediction markets across total volume, open interest, and non-sports volume.
Three consecutive record weeks prove prediction markets can sustain institutional-size liquidity beyond one-off events. That momentum pressures competing venues to deepen their own order books before the current flow concentrates further among the leaders.