Ranked: The World’s Biggest Reserve Currencies Today See visuals like this from many other data creators on our Voronoi app. Download it for free on iOS or Android and discover data-driven charts from a variety of trusted sources. The U.S. dollar accounted for 56.8% of global foreign exchange reserves at the end of 2025, more than all other major reserve currencies combined. The euro ranked second with $2.66 trillion in reserve holdings, equal to 20.2% of the global total.