Treasuries Lose Haven Status as Iran War Exposes Fiscal Fragility

U.S. Treasury bonds are failing their historic role as the ultimate crisis hedge as the Iran conflict enters its third week, with the 10-year yield climbing to 4.28% on March 13 despite escalating geopolitical tensions that would normally trigger aggressive safe-haven buying. The breakdown marks a departure from decades of investor behavior and signals eroding confidence in U.S. fiscal fundamentals at a moment when the government is already spending $433 billion on debt service in the first five months of fiscal 2026—a 7.4% increase over last year.

The traditional correlation between geopolitical risk and Treasury demand has fractured. The 2026 Middle East crisis has triggered a “Stagflationary Risk-Off” shift, where Japanese Yen and U.S. Bonds are failing to protect portfolios against rising oil prices, according to analysis from InvestingCube. Instead of the expected flight to quality, safe-haven currencies (JPY and CHF) have outperformed long-duration Treasuries and German Bunds since 2022, per research from State Street.

The Inflation Premium Overpowers the Risk Premium

The benchmark 10-year U.S. Treasury yield climbed to 4.19% on March 11, 2026, marking a significant shift in the fixed-income landscape as investors grappled with a volatile mix of domestic inflation data and escalating geopolitical risks, per FinancialContent. By March 13, the 10-year note finished at 4.28% while the 2-year note ended at 3.73% and the 30-year yield ended at 4.90%, per ETF Trends.

The yield surge reflects a fundamental repricing of inflation expectations rather than deflation fears. The closure of the Strait of Hormuz has pushed West Texas Intermediate crude oil toward $90 per barrel, creating what traders call a “lag concern”—the February CPI reading of 2.4% year-over-year doesn’t yet capture the energy shock that began in late February.

This recent spike represents a “bear steepening” of the yield curve that differs from the inflationary spikes of 2022 or 2024, per analysis from FinancialContent. In March 2026, the Fed has kept rates steady in the 3.50%–3.75% range. The rise in long-term yields is therefore a market-driven signal that investors expect “higher-for-longer” inflation due to structural issues—namely energy supply shocks—rather than temporary adjustments.

Capital Flows to Gold and Currencies, Not Bonds

Investors are demonstrating clear preferences for alternative Safe Havens. J.P. Morgan raised its Gold price target to $6,300/oz by the end of 2026, up from $5,055/oz, driven by continued demand from central banks and investors, according to Scottsdale Bullion & Coin. Deutsche Bank reiterated its $6,000/oz gold price target on February 2, 2026, while Wells Fargo lifted its year-end 2026 gold target to $6,100–$6,300 an ounce, up from $4,500–$4,700.

The U.S. Dollar remains the undisputed king of safety in the current climate. The greenback is absorbing massive “flight-to-quality” flows while simultaneously gaining strength from the surge in global oil prices, per analysis from InvestingCube. The Swiss Franc surged to its highest level against the Euro in over 10 years on Monday, with the EUR/CHF cross touching its lowest point since 2015, according to Bloomberg.

The Japanese yen, however, is failing. While the Japanese Yen is historically a “classic” haven, it is currently failing to protect portfolios. The primary driver is Japan’s extreme energy dependency, importing nearly 98% of its fossil fuels. With the Strait of Hormuz effectively closed, the market is pricing in a devastating trade deficit for the nation.

Structural Factors Undermining Treasury Demand

The shift away from Treasuries reflects deeper concerns about U.S. fiscal sustainability. The U.S. Treasury’s borrowing showed no signs of slowing as the government headed deeper into fiscal year 2026, with the Congressional Budget Office reporting that $1 trillion was added to the federal deficit in the first five months of the year. The government borrowed $308 billion in February 2026 alone, per Yahoo Finance.

Between October 2025 and February, the Treasury spent an additional $31 billion on net interest on public debt compared to the prior year. In just five months, the Treasury forked out a total of $433 billion to service public debt, which is now nearing $38.9 trillion. The Congressional Budget Office projects that interest payments will total $1,039 billion in fiscal year 2026 and rise rapidly throughout the next decade—climbing to $2.1 trillion in 2036, per data from the Peter G. Peterson Foundation.

Foreign demand is weakening. Foreign investors, who have long been major buyers of U.S. Treasury debt, have seen demand become more uneven. Some foreign central banks, including the People’s Bank of China, have been selling off their holdings of Treasuries in substantial monthly quantities as they focus on allocating resources to domestic priorities or diversifying their reserves, according to International Banker.

Foreign governments accounted for more than 40% of Treasury bond holdings in the early 2010s, up from just over 10% in the mid-1990s. Foreign governments now make up less than 15% of the overall Treasury market, per analysis from a Fortune report. “Those easy times are over,” warned Geng Ngarmboonanant, a managing director at JPMorgan and former deputy chief of staff to Janet Yellen.

Supply Competition and the AI Infrastructure Boom

Treasuries face intensifying competition from corporate issuers. Wall Street estimates for the volume of investment grade debt in 2026 reach as high as $2.25 trillion. The AI boom increasingly sends companies, including hyperscalers and adjacent firms, to the bond market to fund massive investments in data centers and other infrastructure, per Fortune.

“The significant increase in hyperscaler issuance raises questions about who will be the marginal buyer of IG paper. Will it come from Treasury purchases and hence put upward pressure on the level of rates?” noted Apollo Chief Economist Torsten Slok. “The volume of fixed-income products coming to market this year is significant and is likely to put upward pressure on rates and credit spreads as we go through 2026.”

The Federal Reserve’s role adds uncertainty. “From a plumbing perspective, the Fed’s purchases are helping provide a sense of market stability. And this has worked its way out into the economy in the form of stabilised borrowing costs for consumers and businesses this year,” John Luke Tyner, portfolio manager at Aptus Capital Advisors, told Morningstar. Should this recent bout of asset purchasing prove to be a one-off, private investors may end up absorbing more of the supply—and having to do so at higher yields, per analysis from International Banker.

Policy Implications and Market Architecture

Historically, investors have turned to U.S. Treasuries during episodes of market stress, relying on their exceptional liquidity, perceived safety and stability. However, the declining convenience yield suggests that investors may be reassessing Treasuries’ role as the primary safe-haven asset. This shift prompts a closer exploration into alternative assets that may offer more reliable risk mitigation and capital preservation, per research from State Street.