Central Banks Slash U.S. Treasury Holdings as Middle East Conflict Triggers Currency Defense

Foreign Reserves Drawn Down to Stabilize Exchange Markets

In March, foreign central banks executed one of the largest coordinated retreats from U.S. government debt in recent years, liquidating dollar reserves to defend local currencies against an energy shock that sent exchange rates tumbling across Asia. Total foreign holdings of Treasury securities fell to $9.25 trillion from $9.49 trillion in February, reflecting both active sales and sharp valuation losses as bond prices dropped.

China led the decline among major powers, reducing its direct holdings by roughly 6 percent to $652.3 billion, the lowest level since September 2008. Japan, the single largest foreign creditor to the United States, shed approximately $47 billion, bringing its stash down to $1.191 trillion. Seven of the top ten foreign holders cut their exposure during the month, highlighting the breadth of the exodus.

The selloff came as the outbreak of war between the United States and Iran triggered a surge in crude oil prices, hammering economies dependent on imports across the globe. Regional economies reliant on Gulf oil, including Japan, faced the largest energy shock in decades, forcing policymakers to sell part of their dollar based assets to fund currency intervention and stabilize fragile exchange markets.

Frederic Neumann, chief Asia economist at HSBC, said the turbulence made the Treasury pullback predictable.

Given increased financial volatility since the start of the war in the Gulf, and resultant pressure on exchange rates, especially in Asia, it is not a surprise that U.S. Treasury holdings by central banks have fallen. Exchange market intervention to support local currencies will have led some central banks to sell a share of their U.S. Treasury holdings.

Neumann added that policy makers also tend to recalibrate portfolios during bouts of market stress, with some selling reflecting tactical concerns about rising inflation and falling bond values, a move into cash like assets to ensure liquidity should intervention needs escalate.

Energy Shock Forces Policymakers to Prioritize Local Currencies

The decision to offload Treasuries was driven by an immediate need to prop up currencies that were crumbling under the weight of soaring energy import bills. In late March and early April, the Bank of Japan was reported to have intervened in currency markets after the yen weakened past the politically sensitive 160 level against the dollar, a threshold that raised fears of a broader depreciation spiral.

The deterioration in Japan trade balance was stark. Surging oil import costs widened the current account deficit and stoked concerns that the yen would continue to slide, feeding domestic inflation and eroding purchasing power. For a nation that imports nearly all of its energy, the spike in crude prices represented an existential threat to macroeconomic stability.

Other Asian economies faced similar pressures. Currencies across the region tumbled as investors priced in higher oil costs and the prospect of sustained inflation. In response, central banks dipped into their reserves, selling Treasuries to acquire dollars which they then deployed in foreign exchange markets to slow the pace of depreciation.

The intervention came at a direct cost to portfolio value. Foreign investors logged a $142.1 billion valuation loss on long term Treasury holdings in March alone as rising yields crushed bond prices. For reserve managers, the double hit of falling asset values and weakening currencies left little choice but to raise cash.

Beijing’s Reported Holdings Plummet to 16 Year Lows

China’s March reduction marked the latest chapter in a long term decline in direct Treasury exposure. Holdings have fallen from a peak of around $1.3 trillion in 2013 to the current $652.3 billion, a drop of roughly half over little more than a decade. The speed of the March reduction, however, stood out because it coincided with acute market stress rather than the gradual downward drift seen in prior years.

Yet analysts have long argued that official figures undercount Beijing’s true footprint in U.S. debt markets. Custodial centers such as Belgium and Luxembourg are widely seen as conduits for Chinese sovereign wealth and state linked investment pools. Belgium held $454.0 billion of U.S. government debt in March, roughly flat from February, while Luxembourg maintained stable levels near $439.4 billion over the past year.

Becky Liu, managing director of global research at Fidelity International, said the near term moves reflect market turbulence rather than a fundamental strategic retreat. She noted that China’s total Treasury position remains largely stable, with short duration volatility driving the latest monthly decline.

The distinction matters because policy makers in Washington and investors worldwide often treat the monthly Treasury International Capital report as a precise gauge of geopolitical intent. In reality, the data captures only the portion of sovereign wealth that passes through American custodians, leaving a substantial shadow ledger beyond public view.

Tracking the Hidden Flows of Chinese Capital

Estimating China’s full exposure requires looking beyond the country line in the Treasury International Capital data. Brad Setser, a senior fellow at the Council on Foreign Relations, has tracked how Chinese authorities have diversified not just across asset classes but across custodial jurisdictions to mask the true scale of their dollar holdings.

Following the G7 decision to immobilize Russian reserves in early 2022, Chinese reserve managers appeared to reduce their use of Euroclear, the Belgium based custodian that had previously absorbed a large share of Beijing’s Treasury purchases. Since then, Treasuries held in the United Kingdom, France, and Luxembourg have risen in tandem, suggesting a broader dispersal of state linked accounts across European financial centers.

The hard part is estimating just how many bonds China holds through the various custodial and financial centers around the world.

Setser’s analysis indicates that when adjustments are made for holdings routed through Belgium, Luxembourg, the UK, France, and even Canada, China’s total U.S. financial holdings likely remain between 50 and 55 percent of its reserve portfolio. Much of this is now held in agency bonds and shorter duration bills rather than long term Treasuries, a shift that reduces visibility without exiting the dollar ecosystem entirely.

The implication is that while China’s reported Treasury stash has dropped to 16 year lows, its aggregate dollar based position may be far more stable than the headline number suggests. State commercial banks and sovereign wealth vehicles operating outside direct central bank reporting lines add further opacity to the picture.

Tokyo Faces Pressure to Defend the Yen Without Sparking a Backlash

Japan’s status as the largest foreign holder of U.S. government debt places Tokyo in an uniquely delicate position. Any sustained liquidation of Treasuries to fund yen intervention would send ripples through global markets and could raise borrowing costs for the U.S. government. The question of whether Japan will continue to sell has drawn close attention in Washington in recent weeks.

Vikas Pershad, portfolio manager at M&G Investments, said the message from American officials has been clear.

The signal from U.S. policymakers was clear that they hoped the preferred policy option for Japan is not selling Treasuries.

Instead of Treasury sales, Washington and Tokyo have explored alternatives to ease pressure on Japanese foreign exchange reserves. Expanded trade cooperation in critical minerals, advanced technology, and defense procurement could improve Japan’s current account position and reduce the need for outright asset liquidation.

Domestic forces are also pulling Japanese capital home. Government bond yields have climbed to their highest levels since the 1990s as the Bank of Japan tightened policy, making domestic debt more attractive after decades of near zero returns. March saw record monthly inflows into Japanese sovereign bond funds, suggesting that even private investors are beginning to repatriate capital.

Matt Smith, a fund manager at Ruffer, predicted that institutional pressure to repatriate capital will intensify as domestic yields climb. He warned that yen strength could emerge slowly at first, then accelerate rapidly.

BRICS and Emerging Markets Join the Retreat

The March selloff extended well beyond East Asia. India cut its Treasury holdings by 21 percent through 2025, the first decline in four years, bringing its stash down to $190.7 billion from $241.4 billion. Brazil also reduced its position, reflecting a broader reassessment of dollar concentration among emerging market reserve managers.

Dipanwita Mazumdar, an economist at Bank of Baroda, said the reduction reflects a strategic pivot rather than simple yield calculations. She noted that India is diversifying its reserve management and gradually reducing reliance on the American currency amid a weaker dollar outlook and rising geopolitical risks.

The reallocation aligns with a striking structural shift in global reserve composition. For the first time since 1996, foreign central banks collectively hold more gold than U.S. Treasuries, according to International Monetary Fund data. Gold’s share of global reserves climbed to roughly 18 percent in 2024, driven by record purchases from China, Russia, and Turkey.

Reserve managers are increasingly drawn to hard assets that carry no counterparty risk and sit beyond the reach of sanctions regimes. As geopolitical fragmentation deepens and concerns about the weaponization of financial infrastructure grow, the trend toward gold and non dollar instruments appears likely to persist regardless of monthly fluctuations in Treasury holdings.

U.S. Treasury Market Hunts for Buyers as Official Demand Wanes

The withdrawal of foreign official institutions arrives at a precarious moment for the U.S. bond market. Treasury yields have surged as the Middle East conflict stoked inflation fears and prompted investors to demand higher compensation for holding American debt. In recent auctions, demand for long term securities has deteriorated, with the Treasury Department selling 30 year bonds at yields above 5 percent for the first time since 2007.

Not all foreign capital is fleeing. The United Kingdom added roughly $29.6 billion to its holdings in March, reaching $926.9 billion, while private foreign investors continued to pour money into U.S. corporate bonds and equities. On a transaction basis, Treasuries still recorded inflows of $13.5 billion in March, suggesting that price sensitive private funds and hedge funds are partially offsetting central bank sales.

However, the composition of demand is shifting in ways that could increase volatility. Foreign central banks have historically provided a stable, predictable base of demand for government securities. Their replacement by hedge funds engaged in relative value trades, including basis trades that exploit gaps between cash bonds and futures, introduces more fragile liquidity conditions.

With the U.S. federal deficit widening and interest costs now running near $1 trillion annually, the Treasury Department faces the prospect of issuing ever larger volumes of debt into a market where the most politically reliable buyers are stepping back. The April data, due next month, will reveal whether March was a temporary tactical retreat or the start of a more durable realignment.

What to Know

• Foreign holdings of U.S. Treasuries fell to $9.25 trillion in March as central banks sold dollar assets to defend currencies.
• China’s direct holdings dropped 6 percent to $652.3 billion, the lowest level since September 2008.
• Japan reduced its Treasury stash by roughly $47 billion to $1.191 trillion amid intervention to support the yen.
• Analysts caution that official data undercounts China’s true exposure because of shadow holdings routed through custodial centers in Europe and elsewhere.
• Emerging markets including India and Brazil have also cut Treasury exposure, while central banks globally now hold more gold than U.S. government debt for the first time in nearly three decades.
• The U.S. Treasury market faces rising yields and weaker auction demand as foreign official buyers retreat and private investors assume a larger share of financing.