A perfect storm of rising geopolitical tensions, oil prices breaking through the $100 mark, and resurgent inflation expectations is pushing the US Treasury market into its most severe pressure test in nearly two decades.
Yields across the curve have climbed to multi-year highs, with the 30-year yield setting a record for the longest sustained period at elevated levels since 2007. This has forced a sharp reassessment of the Federal Reserve's policy path. On Thursday, the 10-year Treasury yield rose 4 basis points to 4.71%, its highest point since January 2025. The 30-year yield climbed to 5.19%, and the number of consecutive trading days it has remained above the 5% threshold is now the longest stretch seen since 2007. Simultaneously, Brent crude futures surged 7% in a single day, surpassing $100 per barrel, as markets focused on escalating conflict in the Middle East and reports of an attack on a tanker near the Saudi coast.
The rise in yields is quickly transmitting to real-world borrowing costs in the US. The 10-year yield is a key benchmark for mortgages and corporate loans. The average rate on a 30-year fixed-rate mortgage has already climbed to 6.58%, its highest level in nearly a year. Equity markets are also feeling the pressure, with the Dow Jones Industrial Average falling nearly 1% on Thursday, the S&P 500 dropping 1.2%, and the tech-heavy Nasdaq Composite sliding 2.15%.
Goldman Sachs' trading desk had previously identified a 4.7% yield on the 10-year Treasury, $90 WTI crude, a VIX index of 20, and the S&P 500's 50-day moving average as key psychological thresholds. The 10-year yield has now touched that 4.7% level. Charlie McElligott, an analyst at Nomura, argues that the rates market is already front-running the expectations of other investors and is expressing discontent that a "hawkish hold" from the Fed is no longer sufficient.
The 30-Year Yield Stays Above 5% for the Longest Stretch Since 2007
The core of the current volatility in the Treasury market is the increasing stickiness of long-end yields above 5%. According to Dow Jones Market Data, the 30-year Treasury yield had already remained above 5% for 11 consecutive trading days through Tuesday, and on Wednesday it extended that run to the longest continuous streak since 2007. On Thursday, the 30-year yield rose further to 5.19%.
This level is not an automatic trigger for a market crisis. Market participants generally view 5% more as a psychologically important round number that draws attention rather than a line that would force the US to stop borrowing. Bond prices move inversely to yields. The persistent rise in yields means investors are demanding higher compensation for risks such as inflation eroding returns, expanding fiscal financing needs, and an increased supply of long-term bonds. Dustin Reid, Chief Fixed Income Strategist at Mackenzie Investments, noted that for long-duration bonds, "the biggest enemy" is inflation. "If inflation is going to stay high for a long time, investors need to be compensated for that."
A key difference from 2023 and earlier this year is that once the 30-year yield touches 5%, it does not quickly fall back. Alexander Payne, head of mortgages, agency debt, and volatility at Vanguard, stated that while there is no single "trigger" for this sell-off, there are also no signs of a rapid "buy-the-dip" mentality. He believes that given the massive US fiscal deficit and the historic spending expected for AI infrastructure, "there will be plenty of opportunities to buy long-duration debt at higher yields."
Oil Shock Reignites Inflation Expectations, Bets on Rate Hikes Surge
The direct catalyst for this bond market turmoil is Brent crude oil breaking through $100 per barrel. The conflict between the US and Iran, which escalated in late February, has been a persistent source of pressure on energy markets. After a ceasefire agreement in June briefly lowered oil prices and cooled inflation data, the fragile peace in the Middle East quickly unraveled, causing Brent crude to rebound sharply from its lows. Hamad Hussain, a climate and commodities economist at Capital Economics, said that "unless there are clear signs of de-escalation in the various conflicts, the upside risk to oil prices remains significant."
Before the latest oil price surge, institutions like Goldman Sachs and UBS had predicted the Fed would hold rates steady this year. Now, markets are beginning to reprice for a more hawkish policy path. CME FedWatch data shows that the probability of a rate hike at the Fed's next policy meeting, as priced by traders, has risen to 36%. Polymarket data indicates that bets on a rate hike occurring in 2026 have risen to 71%.
In a report on Thursday, Charlie McElligott, an equity derivatives analyst at Nomura, warned that the rates market is essentially trying to "front-run the front-runners" and may be experiencing a "mini-tantrum," signaling that a "hawkish hold is not enough." He further pointed out that the oil shock implies higher interest rate volatility, which will force central banks to reprice their hawkish stances, ultimately leading to a broad tightening of cross-asset volatility. Goldman Sachs' trading desk, meanwhile, is reminding the market to watch several key psychological levels: the S&P 500's 50-day moving average (7462 points), the 10-year yield at 4.7% (last touched in January 2025), WTI crude at $90, and the VIX volatility index at the 20-point threshold. McElligott also warned that the VIX's seasonal patterns are set to "take off" in August, a period known for low liquidity and low risk tolerance.
Fiscal Financing and AI Bond Supply Add Pressure to Long-End Bonds
Oil prices are not the only reason for rising Treasury yields. The fiscal deficit, the supply and demand of government debt, and increased issuance of long-term corporate bonds are collectively changing the supply-demand balance for long-duration bonds. The deteriorating US fiscal situation adds another layer of concern to the bond market. Defense Secretary Pete Hegseth testified to Congress on Tuesday that the US-Iran war has so far cost $37.5 billion, and the Trump administration is seeking an additional $67 billion in supplemental funding to support the ongoing conflict. At the same time, total US national debt has reached $39.6 trillion, nearly five times the $8.35 trillion recorded in 2007, and the debt-to-GDP ratio surpassed 100% this spring.
Furthermore, foreign participation in the US Treasury market has declined compared to previous decades. Brij Khurana, a fixed income portfolio manager at Wellington Management, noted that the presence of foreign buyers in the US Treasury market has been steadily weakening over the past decades, even as US debt has approached $40 trillion and issuance needs continue to climb. He believes that a "handoff" from foreign buyers to domestic holders is needed, but that domestic investors "may only be willing to step in when the stock market is falling."
The bond market also faces structural supply pressure from the corporate sector. According to MarketWatch, citing data from BondCliQ, the combined outstanding bond face value of six major tech giants—Microsoft, Amazon, Alphabet (Google), Nvidia, Meta, and Oracle—is approaching $500 billion for 2026. The AI capital expenditure arms race is providing bond investors with a large number of alternatives to 30-year Treasuries, further diverting demand away from US government debt.
Additionally, the bond market's movements are being influenced by speculation about the policy direction of the new Fed Chair, Kevin Warsh. Warsh has promised to push for central bank reform and has established a special task force to review communications, the inflation framework, and balance sheet policy. Tom Tzitzouris, head of fixed income research at Baird Strategas, said, "The biggest driver right now is probably the Warsh story and how he will approach his role as Fed Chair."
Rising Rates Begin to Test Equity Valuations and Housing Finance
The rise in Treasury yields is now spreading from the bond market to the US stock and housing markets. For several weeks prior, stock markets had reacted relatively calmly to rising oil prices. Michael Kantrowitz, chief investment strategist at Piper Sandler, believed that stocks could remain resilient with the 10-year yield around 4.65% and oil around $87, partly because short-term realized volatility was still low and corporate earnings expectations were being revised upward.
However, with oil at $100 and the 10-year yield breaking above 4.7%, this equilibrium is beginning to crack. Higher yields increase corporate financing costs and compress the valuation space for richly valued assets. The weakness in tech stocks on Thursday, which pushed the Nasdaq's losses, shows that the market's sensitivity to rising interest rates and capital expenditure is increasing. The housing market is also facing a direct impact. The average 30-year fixed mortgage rate in the US has risen to 6.58%, near a one-year high. Higher mortgage rates typically dampen refinancing activity and increase the monthly payment burden for homebuyers.
Mackenzie Investments' Reid warned that if the 30-year yield touches 5.25%, the Treasury Department will begin to feel uneasy. "They don't want to see the long end of the yield curve spiral out of control because that would certainly pose a risk to stock markets and valuations." JPMorgan Chase CEO Jamie Dimon also recently stated publicly that he would not buy long-term US Treasuries at current prices and warned that the deficit problem "will become a problem," at which point "bond vigilantes" will re-emerge.
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