From Bretton Woods to a New Reserve Reality²

Over the past several decades, the composition of central bank reserves has undergone a structural transformation. In the mid-20th century, gold accounted for more than 60% of global reserve holdings, while U.S. Treasuries represented less than 10%. The Bretton Woods system³ anchored this hierarchy, but once it collapsed in the early 1970s, the world transitioned toward fiat-based reserves. This shift, alongside the deepening liquidity of U.S. government bonds, gradually pushed Treasuries into the dominant role. By the 2000s, gold's share of official reserves had dwindled to barely 10%, while Treasuries hovered closer to one-third of the total. The prevailing narrative was simple: gold was relic, Treasuries the cornerstone.

That narrative is now cracking. Persistent central bank gold purchases, particularly from emerging markets, paired with a powerful rally in gold prices have led to a remarkable milestone: central banks now hold a larger share of reserves in gold than in U.S. Treasuries. This reversal reflects not only portfolio rebalancing, but also geopolitical hedging and a questioning of the long-term role of the dollar.

The Story behind the Shift

• From dominance to decline: Gold once represented the overwhelming majority of central bank reserves in the post–Bretton Woods era, but its share steadily eroded as U.S. Treasuries rose to dominance.
• A multi-decade reversal: Since the 2000s, gold's role has been quietly rebuilt, while Treasuries have faced erosion from rising U.S. debt levels, geopolitical frictions and questions around dollar hegemony.
• The crossover moment: In 2024–2025, for the first time in roughly three decades, gold again surpassed Treasuries in central bank reserve share, signaling one of the most consequential portfolio rebalancings in modern history.

Figure 1: Gold Surpasses U.S. Treasuries in Central Bank Reserves for the First Time in Decades

Gold's Returns in Context: When 30% Matters

Historical Extremes: Where 30% Stands

Gold's track record is filled with both fireworks and flameouts. The best year in modern history was 1979 (+126%) amid oil shocks,⁴ inflation and dollar stress. The worst, 1981 (-33%), came as Volcker's policies at the U.S. Federal Reserve sought to crush inflation.⁵ Against this backdrop, 2025's ~30% year-to-date surge already puts it among the 10 best annual returns since 1971, even with four months left in the year.

Figure 2a: Gold's Rollercoaster (Best & Worst Years since 1971)

The 1970s Parallel: Volatility as the Norm

The 1970s were an archetype for gold bull markets. Between 1972 and 1974, gold notched three blockbuster years before suffering declines in 1975 (-24%) and 1976 (-4%), only to rocket again in 1979 (+126%). Gold in such regimes doesn't trend neatly upward; it convulses. If 2025 continues its trajectory, the parallels related to gold's appreciation in that decade might grow stronger.

The Modern Decade: Resetting Expectations

By contrast, the past 10 years show a muted pattern. The mid-2010s saw three consecutive annual losses (2013–2015). Even the pandemic surge in 2020 capped at +25%. Today's nearly +30% move in just eight months signals a break from that pattern: less the slow-moving diversifier of recent memory, more the volatile hedge reminiscent of the 1970s.

Figure 2b: The 1970s as Compared to the Most Recent 10 Years

How Investors Can Position: Efficient Core and Beyond

If the backdrop is extraordinary, the next logical question is: how should investors gain exposure to gold? The reality is there is no single way, each strategy carries its own trade-offs. At WisdomTree, we think about gold not as an isolated sleeve, but as part of an efficient core that integrates with equity exposure.

• WisdomTree Efficient Gold Plus Equity Strategy Fund (GDE): 90% U.S. large-cap equities + 90% gold futures = $180 notional exposure for every $100 invested. This structure avoids the "either-or" trade-off between equities and gold, delivering both.
• WisdomTree Efficient Gold Plus Gold Miners Fund (GDMN): 90% gold miners + 90% gold futures = $180 notional exposure for every $100 invested. Designed for investors with a view on gold's trajectory and interest in combining the metal's potential price appreciation with miners' operating leverage.

Alongside these efficient core strategies, investors should recognize the scale of two familiar benchmark strategies for those considering different avenues of exposure related to gold:

• SPDR Gold Shares (GLD): The world's largest exchange-traded product backed by physical gold.
• VanEck Gold Miners ETF (GDX): The largest ETF tracking the total return performance of gold mining equities.

And, of course, the S&P 500 Index remains an important benchmark for most portfolios.

Figure 3: Standardized Performance

What 2025 Tells Us about Performance

• A year of outsized gains: Gold's 2025 rally has been the common denominator, lifting GLD, GDX and the efficient core strategies GDE and GDMN all ahead of the S&P 500.
• But not every year looks like 2025: Gold's price has often delivered years of flat returns or even declined. Efficient core structures are designed with this reality in mind, offering potential upside when gold is strong but then providing potential portfolio resilience when it is not.

Figure 4: Gold and Equity Strategies Ride 2025's Rally

Live Performance across Horizons

• 2025 as an outlier: GDMN has surged more than 140% year-to-date, with GDX also strong, and even GDE producing standout returns. This environment is unusual, with gold strength amplifying results across exposures.
• Persistence vs. cyclicality: As the length of the performance window grows, results appear to normalize, but we note that 2025's strength is showing up across the range. For example, over the period since GDE's inception, the longest we can show across these strategies, GLD's annualized return was roughly 20% and outpaced that of the S&P 500 Index. History has shown that this has not been the case over most longer-run periods, and it puts an exclamation point on how exciting this particular period has been for gold.
• Efficient core durability: Across the longest common period, GDE and GDMN hold their ground versus GLD and GDX.

Figure 5: Performance Snapshots, from Quarter to Cycle

Conclusion: Beyond "Just Gold"

Gold's 2025 surge has been historic, but the real lesson isn't simply that gold can deliver powerful returns; it's how investors choose to access it. Traditional approaches like GLD (physical gold) and GDX (gold miners) remain important tools, but they force a choice: hold gold instead of equities or bet on miners instead of broader markets.

The efficient core framework changes that equation. With GDE, investors don't have to sacrifice equity exposure to add gold; both sit side-by-side in a single allocation, creating a portfolio cornerstone that adapts to multiple market environments. With GDMN, investors can express a conviction on gold by pairing price appreciation with the operating leverage of miners, again in one integrated structure. Both strategies elevate gold from a niche sleeve to a core holding with balance, efficiency and scale.

That's the story 2025 is telling us: gold is no longer confined to being an alternative on the edges of a portfolio. With efficient core solutions like GDE and GDMN, investors can capture its renewed strategic role, without the trade-offs of "either-or" positioning.

Figure 6: Additional Information

¹ Hegemony = leadership or dominance, especially by one country or social group over others.

² Unless otherwise noted, the sources for any discussion of reserve composition related to gold would be: Sources: World Gold Council (2025). Central banks' gold as percentage of total international reserves, extracted from IMF International Financial Statistics (IFS). Retrieved from World Gold Council Goldhub data portal; International Monetary Fund (2025). International Financial Statistics (IFS) and Currency Composition of Official Foreign Exchange Reserves (COFER), via Central Banking’s “Appendix 3: Reserve statistics.” Central Banking. Retrieved from Appendix 3: Reserve statistics. (Central Banking, 2025).

³ The Bretton Woods system was the international monetary order established in 1944 at a conference in Bretton Woods, New Hampshire. Its design aimed to bring post–World War II economic stability, rebuild global trade, and prevent the competitive currency devaluations that had destabilized the 1930s.

⁴ The 1979 oil price shock was the second major oil crisis of the 1970s, following the first in 1973. It was triggered primarily by the Iranian Revolution, which disrupted global oil production and raised fears of prolonged shortages.

⁵ The Fed raised the Federal Funds Rate to unprecedented levels, peaking around 20% in June 1981.