Central Bank Gold Buying Spree: Sustainability Amid High Prices and Rate Uncertainty

Entering the second half of 2025, international gold prices continue to fluctuate widely near historical highs. On one hand, heightened geopolitical uncertainty and rising debt levels in major economies reinforce gold's safe-haven and reserve currency substitution attributes. On the other hand, the Federal Reserve's wavering policy path keeps real rate expectations as a key variable capping upside potential. In this deep tug-of-war between safe-haven demand and interest rate expectations, the sustainability of the multi-year central bank buying spree has become a focal point for derivatives market participants.

Central Bank Gold Buying: From 'Accumulation' to 'Strategic Reassessment'

According to the World Gold Council's quarterly reports, global central banks have maintained net gold purchases for several consecutive years, with annual purchases exceeding 1,000 tonnes in both 2022 and 2023, setting historical records. Entering 2025, despite some monthly fluctuations, the overall trend has not reversed. Several emerging market central banks continue to increase gold's share in their official reserves to hedge against dollar asset volatility and geopolitical sanctions risk. Notably, some Eastern European and Central Asian countries, which were previously active buyers, have shown a marginal slowdown in the pace of accumulation, while large Asian economies exhibit stronger persistence.

Behind this structural shift lies a repositioning of gold's role in central bank portfolios. As the dollar-based credit system faces challenges and global reserve currency diversification accelerates, gold is no longer merely a short-term safe haven but is being integrated into core long-term strategic asset allocations. Data from the International Monetary Fund (IMF) on reserve composition indicates that gold's average share in developing countries' reserves remains well below that of developed nations, implying ample theoretical room for further accumulation.

Rate Expectations: The Sword of Damocles Hanging Over Gold

In stark contrast to the long-term logic of central bank buying, short-term rate expectations have been highly volatile. The Federal Reserve repeatedly emphasized a 'data-dependent' approach in its monetary policy statements during the first half of 2025, pushing back market expectations for rate cuts. According to the CME FedWatch tool, the implied probability of the first rate cut in federal funds futures has notably declined recently, directly lifting real interest rates and exerting valuation pressure on non-yielding gold.

Spot gold prices exhibit a strong negative correlation with U.S. Treasury real yields. When markets expect rates to stay higher for longer, the opportunity cost of holding gold rises, prompting speculative long positions to take profits, leading to frequent pullbacks after rallies. However, each deep correction tends to attract buying from central banks and long-term investors, creating a range-bound pattern with support on dips and resistance on rallies. In the derivatives market, implied volatility on gold options remains elevated, with open interest rising for both calls and puts, reflecting significant divergence in views on the market's direction.

The Core Battle: Real Rates vs. Safe-Haven Premium

The central market tension lies in whether the 'credit hedge' demand represented by central bank buying can persistently offset the 'carry cost' pressure from rising rates. Historically, gold tends to face headwinds when real rates rise rapidly; but when sovereign debt risks or geopolitical conflicts escalate, the safe-haven premium quickly overshadows rate impacts. Several pulse-like rallies in 2025 have been directly linked to sudden geopolitical events or concerns over U.S. fiscal deficits.

Derivatives pricing indicates investors are preparing for two scenarios: one where the Fed is forced to cut rates earlier due to weakening economic data, pushing gold above the current range; another where sticky inflation keeps rates elevated, potentially leading to a deeper correction. This uncertainty is reflected in the gold futures term structure, with widening spreads between near-month and far-month contracts and increased activity in arbitrage strategies.

Sustainability of the Buying Spree: From Incremental to Stock Optimization

Looking ahead, the sustainability of central bank gold purchases hinges on three key variables: the pace of evolution in the dollar-based credit system, central banks' liquidity needs for reserve management, and the constraint of gold prices on purchase costs. Currently, most central banks' buying is not based on short-term price calls but on long-term diversification considerations. Therefore, even at historically high prices, the direction of accumulation is unlikely to reverse unless extreme bubble conditions emerge.

However, marginal changes warrant attention. Some central banks are shifting from 'rapid accumulation' to 'stock optimization,' adjusting the allocation between gold and other assets while keeping total reserves stable. Additionally, persistently high prices may stimulate increased mine supply and higher recycling of scrap gold, which could temper prices from a supply-demand balance perspective. In the derivatives market, growth in OTC forwards and swaps volumes suggests central banks and large institutions are using derivatives to manage the pace of purchases and price risk.

Conclusion: Higher Trading Range, Increased Volatility

In summary, the pattern of high-level volatility in gold prices is unlikely to break in the near term. The central bank buying spree provides solid long-term support, but fluctuating rate expectations will amplify short-term swings. For derivatives traders, the probability of sustained one-way trends is low; opportunities lie more in volatility trading and calendar spreads. In the coming months, markets will closely watch every Fed policy signal and subtle changes in central bank monthly reserve data, as these could be key catalysts to break the current equilibrium.