The Dollar’s Global Role: Reserve Diversification Meets a Stronger Market
The US dollar is facing more discussion about its long-term role in the global financial system. Some central banks and international businesses are diversifying their currency exposure, while the euro, yuan and gold receive greater attention. Yet the dollar remains central to currency trading and international finance. Its long-term position and its day-to-day exchange-rate movements tell different stories.
The dollar’s reserve share is gradually changing
The International Monetary Fund’s latest reported COFER data shows that the dollar accounted for 56.70% of allocated global foreign-exchange reserves in the second quarter of 2026, down from 57.18% in the previous quarter. The euro’s share rose to 20.60%, while the Chinese renminbi accounted for 2.11%.
These figures point to gradual diversification in official reserves. They do not, on their own, show that another currency is ready to replace the dollar. Reserve managers consider factors such as market liquidity, access to tradable assets and the ability to move large sums efficiently.
The dollar remains deeply embedded in FX trading
Reserve holdings are only one measure of a currency’s role. The Bank for International Settlements’ 2025 survey recorded average daily global FX trading of $9.6 trillion. The US dollar was on one side of 89% of trades, compared with 28.9% for the euro and 16.8% for the Japanese yen. Because every FX trade involves two currencies, these shares add up to more than 100%.
This reflects how the dollar is used in currency markets: it often acts as an intermediary when traders exchange currencies that are not directly paired. That role is supported by the scale and liquidity of dollar markets.
Short-term direction can differ from the long-term picture
Recent trading shows why the dollar’s structural role should not be confused with its current price direction. On 12 November, the dollar index rose to 103.02, its highest level since April 2025, as stronger US inflation data and hawkish comments from Federal Reserve officials increased expectations of future rate hikes. The dollar also moved close to 160 yen, a level markets are watching amid the possibility of Japanese intervention.
Higher interest-rate expectations can support a currency in the short term by making its assets more attractive to some investors. But exchange rates also respond to future data, central-bank decisions and changes in market sentiment. The dollar’s recent strength does not erase the longer-term diversification trend; the reserve-share trend does not determine what the dollar will do next.
A gradual shift, not a settled replacement
The current picture is a global system where more currencies are being used, while the dollar continues to play a major role in reserves and FX trading. For market participants, it helps to keep both timeframes in view: structural changes develop over years, while currency prices can respond sharply to a single data release or policy signal.
Market note: Figures and market conditions can change. This article is for general information and is not investment advice or a recommendation to trade.
