Wall Street banks and rapid-fire trading firms pay thousands of dollars a month for these services from firms including Nasdaq OMX Group Inc. and IntercontinentalExchange Group Inc.s New York Stock ...

Federal regulators are examining whether some sophisticated, rapid-fire trading firms have used their links to computerized stock-exchanges to gain an unfair advantage over other investors.

U.S. securities regulators are conducting a wide-ranging investigation into the complex relationships between rapid-fire trading firms and stock exchanges, Colin Barr reports on Markets Hub.

The development comes a day after Trump exempted automotive goods from the 25% tariffs he imposed on imports from Canada and Mexico as of Tuesday, levies that economists saw as threatening to stoke ...