The WSJ Dollar Index rose 0.5% — up for three consecutive trading days.

The WSJ Dollar Index rose 0.6% — up for four consecutive trading days.

Safe-haven demand lifts the U.S. Dollar as Middle East tensions rise, oil prices surge, and strong economic data keeps Fed rate cuts off the table.

The Economist’s Big Mac currency index has the dollar overvalued by 19%. The CFR Mini Mac index has it undervalued by 7 percent. We explain why ours is a better measure of currency values.

Global currencies swung widely on Tuesday as foreign exchange traders priced in the effects of an increasingly broad supply-side inflationary shock resulting from the Iran war. The US dollar index (DX ...

The yen found some support on Friday as Japanese officials stepped up their verbal intervention to stem the currency's decline, even as the greenback headed for its biggest weekly rise in six weeks.

The war in Iran is a global destabilizing event, and those are the times when investors seek out the safety of the U.S.

The U.S. dollar was soft on Monday as investors assessed shifting policy signals and shifting currency dynamics amid a busy global macro backdrop. The dollar index (DXY), which measures the greenback ...

The dollar resumed its climb after a brief retreat ⁠from three-month highs as the fallout from the Middle East conflict kept investors on edge.