Want to Short a Stock? Kalshi and C.T.F.C. Allow It as ‘Perpetual Trades.’
In late April, Kalshi, the world’s largest prediction market, invited a big crowd to a posh event to launch a new type of trading. The event was so successful that it was approved by the Commodity Futures Trading Commission. Two powerful clearinghouses — the Chicago Mercantile Exchange and Cboe Global Markets — have filed suit against the move.