Central banks led by China have accelerated purchases of gold and reduced holdings of U.S. dollar-denominated assets, a shift that market analysts say has contributed to a significant decline in the dollar’s value and a surge in gold prices.

The trend has coincided with an 11% drop in the dollar in the first half of the year, Morgan Stanley reported, marking the currency’s largest first-half decline in more than 50 years. At the same time, gold prices have reached record highs: Comex prices recently topped $3,600 an ounce, up roughly 45% year over year, while demand from official sector buyers has increased materially.

J.P. Morgan analysts estimated that central-bank gold holdings stood at nearly 36,200 tonnes, representing almost 20% of official reserves — up from around 15% at the end of 2023. The bank identified China, Poland, Turkey, India, Azerbaijan, Czechia and Iraq among the most active buyers in recent months. Exchange-traded funds have also attracted significant inflows, with year-to-date inflows of about 310 tonnes, roughly 10% of total global holdings, driven in part by large increases in Chinese ETF purchases.

The combination of central-bank diversification and private investment has helped push yields on U.S. Treasuries higher, analysts say, because reduced appetite for dollar assets forces issuers to offer higher rates to attract buyers. A weaker dollar also raises the cost of imported goods and foreign travel for U.S. consumers and can contribute to broader inflationary pressures, economists warn.

Several central banks have publicly altered reserve strategies amid broader geopolitical and economic concerns. Some official-sector moves have included instructions to state banks to reduce dollar purchases and shift into alternative assets, including gold and other currencies. The pace of diversification has accelerated in recent years, J.P. Morgan said, trimming the dollar’s share of allocated global reserves.

Market participants and analysts differ on the long-term implications. Some view the increased allocation to gold as a hedge against geopolitical and financial risks, while others emphasize structural limits to dethroning the dollar as the world’s primary reserve currency. Obstacles cited include the depth and liquidity of U.S. capital markets, the dollar’s role in global trade and finance, and concerns among investors about the transparency and stability of alternative issuers.

Analysts note that replacing the dollar would require a credible, widely accepted alternative with liquid capital markets and stable institutions. While some policymakers in Beijing have promoted broader use of the renminbi in international transactions, financial-market participants point to persistent issues—including capital controls, questions about data transparency and policy credibility—that currently constrain the renminbi’s appeal as a full substitute for the dollar.

Investors have also reacted to domestic and international policy developments. News and commentary about trade policy, fiscal positions and regulatory changes can influence sentiment and capital flows, compounding the effects of official reserve-management decisions. Financial firms and central-bank reports suggest that the recent moves reflect a mix of strategic portfolio diversification and direct policy aims by some governments to reduce dollar dependence.

For now, market-watchers say the adjustments are measurable but not yet indicative of an imminent global currency realignment. Central-bank gold purchases have raised the precious metal’s profile as part of official reserve strategies, yet the dollar remains the dominant currency for global trade and finance. How policymakers and investors respond in the coming months — through reserve allocations, sovereign-debt issuance and macroeconomic policy — will determine whether recent shifts are transitory or the start of a more lasting reconfiguration of international reserves.