The US dollar remains the world’s dominant reserve currency due to its strong legal framework, widespread use in trade, and deep financial markets. Over half of global trade is denominated in dollars, and nearly 90 percent of daily foreign-exchange transactions involve the currency. The dollar’s role as a unit of account and store of value is further solidified by its use in pricing commodities like gold and oil, as well as its presence in foreign economies through pegs or managed floats.
The dollar’s status as a reserve currency is not easily challenged, as network effects and historical precedence reinforce its dominance. While the dollar’s share of global reserves has declined from 72 percent in the early 2000s to 57 percent in mid-2026, it still holds a wide lead. Other currencies, like the Swiss franc and Japanese yen, have safe-haven qualities but lack the scale and liquidity needed to compete.
The Federal Reserve plays a crucial role in maintaining the dollar’s reliability by focusing on price stability and financial stability. However, inflation has been a persistent challenge, with headline PCE inflation at 3.6 percent and core PCE inflation at 3.1 percent in September 2026, both above the Fed’s 2 percent goal. The Fed expects to adopt a more restrictive monetary policy to address this issue.
The combination of strong institutions, open capital markets, and a well-regulated financial system makes the dollar uniquely positioned as the world’s reserve currency. While this status is not permanent, it is unlikely to change quickly due to the entrenched benefits and network effects of its widespread use.