Fallout from Switzerland’s wildly swinging currency ricocheted around the world, hitting global banks with tens of millions of dollars in losses and triggering the collapse of some brokerage firms.

Deutsche Bank suffered about $150 million in losses Thursday after the Swiss National Bank abruptly removed the cap on the Swiss franc's value, sparking a massive rally, according to a person familiar with the matter. Barclays also racked up tens of millions of dollars in losses, although they totalled less than $100 million, another person said.