Dollar Posts Steepest 6-Month Drop in 50 Years as Investors Abandon US Assets
For decades, the U.S. dollar's role as the world's reserve currency has been treated as a permanent feature of the global financial system—as inevitable as gravity, as enduring as the Constitution. That assumption is being tested in 2026 in ways not seen since the Nixon era.
The U.S. Dollar Index, which measures the greenback against a basket of major currencies, has fallen approximately 10% since President Trump returned to the White House. The first half of 2025 saw its steepest six-month decline in more than 50 years. And despite some safe-haven demand during the early weeks of the Iran war, the structural trend has resumed: foreign investors are quietly, systematically reducing their exposure to dollar-denominated assets.
"Long-term we will continue to see a lowering of the valuation of the dollar," said Ales Koutny, head of international rates at Vanguard. "We are seeing more and more investors looking for diversification—European currencies, especially the euro and sterling, benefiting a lot from this potential search."
Why the Dollar Is Falling
The decline is not a single-cause story. Several interconnected forces are working simultaneously to erode the dollar's value and, more fundamentally, its credibility.
The deficit catastrophe. The federal deficit for fiscal year 2025 came in above $2 trillion, and fiscal year 2026 is tracking similarly. U.S. national debt now exceeds $36 trillion, with interest payments alone consuming more than $1 trillion annually—more than the entire defense budget. Ray Dalio, the founder of Bridgewater Associates and one of the world's most closely followed macro investors, has warned explicitly that the U.S. is on a path that risks destroying the dollar's reserve status.
"It's been running those deficits for a while, so it has a debt that's about six times its income, the amount that it takes in," Dalio noted, pointing to debt-to-income ratios that have historically preceded reserve currency transitions.
Political pressure on the Fed. Trump has consistently advocated for a weaker dollar, saying explicitly: "You make a hell of a lot more money with a weaker dollar." The recent replacement of Jerome Powell with Kevin Warsh—a figure seen by bond markets as more politically aligned with the White House—has raised concerns about the independence of monetary policy. When markets doubt a central bank's independence, they demand higher yields and discount the currency.
Foreign selling of Treasuries. China and Japan, historically the two largest foreign holders of U.S. Treasuries, have been reducing their holdings. Japan has been selling to defend the yen. China has been diversifying into gold and other assets. When the largest foreign buyers of U.S. debt step back, prices fall and yields rise—a feedback loop that simultaneously weakens the dollar and raises borrowing costs.
Trade and geopolitical fragmentation. The tariff regime, the Iran war, and the broader retreat from multilateral institutions have accelerated what analysts call "de-dollarization"—the gradual shift by countries to settle trade in currencies other than the dollar. Russia and China have been conducting bilateral trade in yuan and rubles for years. Saudi Arabia has discussed oil sales in yuan. The BRICS nations have floated alternative reserve arrangements. None of these shifts is decisive yet, but they are directional.
The Hidden Tax on Every American
A weaker dollar is not an abstract financial statistic. It is a direct and immediate cost to every American household.
When the dollar falls 10%, imported goods cost roughly 10% more in dollar terms. That means electronics, clothing, furniture, vehicles, pharmaceuticals, and thousands of other products that cross U.S. borders become more expensive. It also means that American travelers abroad see their spending power erode. And it means that oil, priced in dollars globally, effectively gets an additional price premium on top of the supply disruption from the Iran war.
"A hidden force is quietly pushing up costs for everything from your summer vacation to your weekly grocery bills: a weaker U.S. dollar," reported the Chicago Tribune and AP in early May. "The dollar has fallen about 10% against other major currencies since President Donald Trump returned to the White House."
This dollar-driven inflation compounds the energy inflation, tariff inflation, and services inflation that are already driving the PCE index to 3.8% annually.
The Reserve Currency Question
Stan Druckenmiller, one of the most successful macro investors in history, put it bluntly in a recent interview: "We're doing everything we can to destroy it." Referring to the dollar's reserve currency status, he said the dollar would "probably outlive me but I doubt it'll be the reserve currency in 50 years."
A Reuters poll of FX strategists in early May concluded that the dollar would "remain stuck in a range" in the near term, dependent on the Strait of Hormuz situation, before weakening further over the course of 2026. HSBC's global head of FX research, Paul Mackel, said the Iran war is now "the dominant force" steering the dollar in the near term—but warned that the long-term trajectory is downward.
The Recession Amplifier
For a country approaching potential recession, a falling dollar creates a particularly vicious dynamic. Import costs rise, amplifying inflation. The Fed cannot cut rates to stimulate the economy without risking further dollar weakness and inflation acceleration. Foreign creditors, watching the dollar fall, demand higher yields to hold U.S. debt—raising borrowing costs for businesses, homeowners, and the federal government alike.
The dollar's weakness is not the cause of America's coming recession. But it is one of the key mechanisms that makes a soft landing harder to achieve and a hard landing more likely.
When the world's reserve currency is under sustained structural pressure, the word "safety"—long associated with U.S. assets—starts to mean something different. And the financial consequences of that redefinition have barely begun to be felt.