Banks lose $300 million in fees as broken deals set record

More than $395.4 billion in U.S. mergers, including, most recently, Staples Inc.’s combination with Office Depot Inc., have fallen apart in 2016, according to data provider Dealogic, felled by exacting regulators, rocky markets or reluctant targets. That will be a record even if no other deals stumble for the rest of the year.