The U.S. dollar has enjoyed something of a reprieve in recent weeks, regaining its place as a safe haven in times of turmoil. Will it last?

For the week ended March 6, foreign currency assets, a major component of the reserves, decreased by $9.880 billion to $563.245 billion, according to data released by the central bank.

WSFx Global Pay's Smart Switch Forex Card lets users switch between 30 currencies on one card, supporting transactions in ...