Odaily reported that a16z crypto said in a post on X that open interest in prediction markets reached $1.48 billion in the week ending June 15, marking a record high for the second consecutive week. Unlike trading volume, which reflects daily activity, open interest tracks capital that participants have already deployed and that remains at risk in active positions.
According to a16z crypto, the figure has increased by about six times over the past year. The firm said this shows that users are maintaining longer-duration financial positions, while prediction markets are developing into more durable market infrastructure rather than serving only as venues for short-term event-driven activity.
The post also stated that major events have attracted large numbers of users, and that more traders are staying to participate in a broad range of markets spanning politics, economics, culture and crypto. In a previous update, a16z crypto said the combined effect of multiple events, including the World Cup, drove prediction market weekly trading volume to a record high of $10.8 billion.