Cantor, the investment bank, is opening Kalshi's prediction markets to its institutional clients. The move gives roughly 3,000 firms the ability to execute large block trades in event contracts, a first for the platform's traditional finance reach.
A new channel for event contracts
Kalshi runs regulated prediction markets where users trade on the outcomes of everything from election results to economic data. Until now, that trading has been mostly retail-focused. Cantor's involvement changes the picture by bringing in institutional money.
The bank will help its clients place block trades—large transactions arranged privately to avoid moving the market. That's a different animal from the small, frequent bets typical on retail platforms. For Cantor's clients, it means they can take meaningful positions on event outcomes without tipping off the market.
How block trades fit in
Block trades are standard in equities and bonds, but they're new to prediction markets. Cantor is essentially adapting a familiar tool for a new asset class. The bank's role is to match buyers and sellers, then execute the trade in size.
That's a logistical challenge. Prediction markets are often thin, so a large order could distort prices. Cantor's job is to find counterparties and negotiate a price that works for both sides. The bank hasn't said how it will handle that, but the infrastructure is clearly in place.
What this means for Cantor's clients
The 3,000 institutional clients—hedge funds, asset managers, and the like—now have a direct route into Kalshi's markets. They don't need to build their own trading systems or navigate the platform's interface. Cantor does the heavy lifting.
This could be a significant shift for prediction markets, which have long been seen as a niche tool for political forecasting. With institutional participation, the markets gain liquidity and credibility. But it also raises questions about how these markets will behave when big players start moving them.
Cantor hasn't disclosed a timeline for when the first block trades will be executed. The service is being rolled out to clients now, but the bank hasn't said how many have signed on. That's the next thing to watch.
