Financial technology company Imperative Execution said on Tuesday it had raised $9 million. The firm is trying to lower the cost of executing large trades for big funds like Fidelity. A trading firm that is trying to solve one of the biggest headaches in US stock trading has raised $9 million to build out its AI-powered matching engine. Backed by investors including Steve Cohen Point72's, Imperative Execution is aiming to lure large investors away from established stock exchanges such as New York Stock Exchange and Nasdaq by lowering the cost of executing a large trade.