The Dollar Is Eroding. Nothing Is Replacing It.

Ask why the dollar is losing ground and you’ll usually get a name in reply: gold, the yuan, Bitcoin. Something, the story goes, is quietly taking the dollar’s place.

The dollar’s share of global central bank reserves has fallen from roughly 71% in 1999 to 57.1% in early 2026, according to the IMF’s official reserve-composition survey — the most complete public record of how central banks hold their money. That’s a real, quarter-century decline. Multiple studies, including recent Federal Reserve research, have confirmed it reflects genuine portfolio decisions, not just the dollar’s exchange rate moving around. What none of the popular explanations get right is where that money has actually gone — or what history’s only real precedent for a currency handover looked like.

01 — The MechanismA Self-Reinforcing Loop, Slowly Loosening

Reserve status, Treasury market depth, and trading dominance aren’t three separate dollar facts — they’re one feedback loop. Central banks hold dollars largely because Treasuries are the deepest safe asset on earth; Treasuries are that liquid partly because of the reserve demand itself. That loop is still very tight: the dollar sat on one side of 89% of global FX trades in April 2025, per the Bank for International Settlements, and Federal Reserve research puts long-run dollar invoicing at roughly 96% of trade in the Americas and 74–79% across Asia-Pacific and the rest of the world outside Europe. Those figures have barely budged in decades even as the reserve-share number keeps sliding. The erosion is concentrated almost entirely in one leg of the loop — official reserves — not in the private trading and invoicing activity underneath it.

02 — The MythIt’s Not Going Where You Think

The most rigorous study on this question, a 2022 IMF working paper by Serkan Arslanalp, Barry Eichengreen, and Chima Simpson-Bell, confirms the decline is real active diversification — and then delivers the twist: the shift out of dollars hasn’t gone mainly to the euro, yen, pound, or even primarily to the yuan. About a quarter of it went to the Chinese renminbi. The remaining three-quarters scattered into a long tail of smaller currencies — the Australian dollar, Canadian dollar, Swiss franc — none individually large enough to matter. That’s diffusion, not replacement.

The other candidates fare no better under scrutiny. Central bank gold buying, extraordinary as it has been since 2022, is mostly ordinary diversification for all but a few buyers — Federal Reserve research finds it isn’t generally linked to de-dollarization at the country level, once you separate genuine new purchases from gold simply getting more expensive (a distinction we go into in Rethinking Gold’s Rally). The yuan stays capped near 2% of reserves because China won’t open its capital account. And roughly 99% of stablecoin market value is dollar-pegged, meaning crypto’s biggest real-world use case is currently extending the dollar’s reach into places traditional banking doesn’t go, not replacing it.

Even history’s own precedent is stranger than advertised. The textbook version says sterling held the lead until after World War II. Barry Eichengreen’s own archival research with Marc Flandreau found the dollar actually overtook sterling first in 1924 — then lost the lead back to sterling for a few years in the early 1930s, before winning it permanently only in the early 1940s. Reserve currency leadership can change hands faster than incumbency advantages suggest. It can also change back. Nothing visible today has forced that kind of contest with the dollar yet.

03 — The VisionSo What Actually Comes Next?

Three doors get proposed as the dollar’s successor. The renminbi door stays shut as long as Beijing keeps its capital account closed — a 2024 academic study found convertibility is close to a precondition for real reserve-currency status, which is exactly why the renminbi’s reserve share has drifted back down toward 2% after briefly touching almost 3% in 2021. The BRICS common-currency door has, in the researchers’ own words as of March 2026, “failed to gain any momentum.” And the digital-currency door — central bank digital currencies meant to route around dollar-clearing entirely — increasingly looks like a split into two competing blocs rather than one dollar-free rail, after the Bank for International Settlements withdrew from the leading pilot, Project mBridge, in 2024.

The most defensible vision isn’t a new dominant currency at all. It’s durable multipolarity: a world where the dollar keeps losing reserve share, gradually and unevenly, without anything ever fully stepping into its place. The one thing actually worth watching isn’t a rival currency — it’s whether the dollar’s own safe-haven status, tested and so far unbroken during 2025’s tariff turmoil, stays that way.