Underdog says the makers of its prediction market exchange and clearinghouse are suing over the terms of another Underdog transaction. The lawsuit, brought by Aristotle, centers on the terms of a takeover deal. No further details on the specific claims or the transaction at issue were provided in the available text.

Aristotle built the exchange and clearing infrastructure that Underdog's prediction market relies on; a dispute over takeover terms could disrupt that relationship or force Underdog to find alternative clearing technology.