U.K. companies see big losses on currency hedges.

U.K. companies see big losses on currency hedges.

Group used instant messages to coordinate strategies to manipulate currency market.

Group used instant messages to coordinate strategies to manipulate currency market.

Global regulators order fines after 13-month probe into rigging of currency benchmarks.

How asking for "at-best price" and other common practices put corporate FX customers at risk of being overcharged.

How asking for "at-best price" and other common practices put corporate FX customers at risk of being overcharged.

As international probe into currency manipulation widens, the world's seven biggest FX dealers have all taken action against employees.