Bond yields hit 5.33% as debt fears test bitcoin's hedge narrative

The 30-year U.S. Treasury yield reached 5.33 percent, its highest since 2007, as investors priced in sustained fiscal stress with U.S. debt approaching $40 trillion and AI hyperscalers accelerating bond issuance.

Rising long-dated yields "can also reflect concerns around high levels of government borrowing and investors demanding greater compensation for the risks of holding long-dated government bonds," said Dan Coatsworth, head of markets at AJ Bell.

The 10-year Treasury yield reached 4.748 percent, a level last seen in January 2025, while Japan's 10-year government bond yield touched a 30-year high of 2.955 percent. The 30-year TIPS yield, the real inflation-adjusted return, hit 3.09 percent, its highest since 2008. TLT, the ETF tracking long-duration U.S. Treasuries, fell to an all-time low of $81.35, and 10 of 11 S&P 500 sectors declined last session.

Bitcoin, which was meant to serve as a hedge against fiscal debasement, has yet to fulfill that role, trading just above $64,000 after nine months of underperformance. Gold, by contrast, has gained 10 percent this month, suggesting investors view the bond selloff partly as a loss of confidence in sovereign fiscal credibility.

Strait of Hormuz Closure Compounds Fiscal Stress

The selloff reflects more than a single geopolitical shock. The collapse of U.S.-Iran peace negotiations — the initial 60-day memorandum of understanding expired without resolution — has kept oil elevated, with Brent crude trading above $91 a barrel after the Strait of Hormuz's effective closure for nearly six months. WTI crude is up 25 percent from its July low, trading above $84 a barrel.

Deutsche Bank strategist Jim Reid said there was no single catalyst for the decline, "but with few signs of the US and Iran coming to any sort of a deal, that meant investors priced in a more extended closure of the Strait of Hormuz."

The fiscal picture compounds the geopolitical risk. U.S. national debt is approaching $40 trillion, and hyperscalers have issued a combined $159 billion of bonds in 2026, up 47 percent from a year earlier, largely to finance AI infrastructure. Goldman Sachs expects total issuance to reach $400 billion this year. Every basis-point increase raises the cost of refinancing that debt.

Bitcoin's Hedge Narrative Faces Its First Real Test

Five and ten-year inflation expectations have remained relatively stable at 2.25 percent and 2.28 percent, respectively, suggesting inflation is not the market's primary concern. The driver is debt supply and refinancing risk.

Gold and bitcoin, which generate no yield, should theoretically become less attractive as bond yields rise. Gold has defied that logic, gaining 10 percent this month. Bitcoin has not, stuck in a low-volatility summer lull just above $64,000.

The last time 30-year yields approached these levels was in 2007, before the global financial crisis. If the current trajectory holds, the cost of servicing U.S. debt — already the fastest-growing line item in the federal budget — will accelerate further, potentially forcing the Treasury to crowd out private borrowing. For bitcoin, the question is whether it can eventually capture the fiscal-debasement bid that gold has already absorbed, or whether the yield surge continues to pull capital away from speculative assets.

This article is for informational purposes only and does not constitute investment advice.