The yield on the 30-year U.S. Treasury note surged to 5.16% on May 18, marking its highest intraday level since October 2023 and nearing a peak not seen since the 2007 global financial crisis. This sharp rise in long-term bond yields signals a fundamental market shift, as investors reassess a bond world without the expectation of Federal Reserve emergency intervention.
A key catalyst for this shift is the imminent leadership change at the Fed. The U.S. Senate confirmed Kevin Warsh as the next Federal Reserve Chair on May 13 with a 54-45 vote, succeeding Jerome Powell for a four-year term. Powell's chairmanship concluded on May 15, and he currently serves as interim chair. Warsh is scheduled to be sworn in on May 22, officially taking the helm.
The Return of a Bond Purchase Critic Warsh served as a Federal Reserve Governor from 2006 to 2011, playing a key role in decisions during the 2008 financial crisis and establishing an early reputation as a policy hawk. He has long been a vocal critic of the Fed's bond-buying programs and resigned from the Board in 2011 due to disagreements over the expansion of the central bank's balance sheet.
During his Senate confirmation hearing on April 21, Warsh stated clearly, "We will work with the Treasury Secretary to find a way to reduce the size of the balance sheet." Markets widely interpret this as a definitive signal of the approaching end of the quantitative easing era.
The Fed's current balance sheet stands at approximately $6.7 trillion. While down from a peak of around $9 trillion in 2022, it has recently seen slow growth to maintain adequate bank reserves. Warsh's long-term goal is more aggressive; he has publicly suggested aiming to shrink the balance sheet to around the $3 trillion level, effectively halving its current size. If implemented, this stance would mean the effective disappearance of the safety net that has underpinned the ultra-long-term bond market since the 2008 crisis.
30-Year Treasury Yield Breaks Above 5.15% The primary drivers behind the surge in long-term U.S. borrowing costs are clear: ongoing geopolitical tensions involving Iran, energy price shocks feeding into broader inflation, persistently higher-than-expected inflation data, and self-reinforcing expectations for higher interest rates.
Since the U.S.-Israel strikes on Iran in late February, the 30-year Treasury yield has climbed over 50 basis points, hitting an intraday high of 5.16% on May 18. The 10-year and 2-year Treasury yields also reached 4.63% and 4.10%, respectively, their highest levels since February 2025. As of May 19, the 30-year yield held around 5.13%, close to its highest level since 2007.
On the inflation front, the Fed's preferred core PCE price index rose 3.2% year-over-year in March, the highest since November 2023, while the headline PCE increased by 3.5%. The Fed's 2% inflation target appears increasingly distant. The ripple effects of energy price shocks are spreading to a wider range of goods and services—data from the American Automobile Association shows the national average gasoline price has surpassed $4.53 per gallon.
The bond market is front-running these developments. Alarm bells are ringing across the roughly $30 trillion U.S. Treasury market: the 2-year yield has broken above 4%, exceeding the upper bound of the Fed's 3.50%-3.75% policy target range. The CME FedWatch Tool indicates the probability of a Fed rate hike by early December is near 40%, while the chance of a cut is below 2%.
Yield Reassessment After the Safety Net Frays The direct impact of quantitative easing on long-term bond yields remains debated in academic and investment circles. However, most investors agree on at least one point: a key reason the term premium on long-term U.S. Treasuries has remained at historically low or even negative levels is that the Fed, through its large-scale asset purchases, has effectively acted as a "buyer of last resort" for the bond market. This implicit safety net has objectively reduced the risk compensation investors demand for holding long-term bonds.
If Chair Warsh discontinues support for further purchases of bonds with maturities beyond 10 years, the ultra-long bond sector would lose the effective safety net it has enjoyed since 2008, even in the face of new market shocks or crises. This would fundamentally alter the market's pricing logic.
Against this backdrop, and combined with a deteriorating fiscal outlook and rising expectations for the long-term neutral rate, Barclays strategists have provided a specific projection: a 30-year Treasury yield of "5.5% does not seem out of reach." This would be its highest level since 2004.
Warsh's impending tenure as Fed Chair, with his hawkish stance on the balance sheet, is fundamentally altering bond market pricing expectations. The 30-year Treasury yield has breached 5.15%, with Barclays warning it could test 5.5%—a level not seen since 2004. The future path of the Fed's $6.7 trillion balance sheet and the market's self-adjustment mechanism in the absence of the "central bank backstop" expectation will be core variables determining the direction of global fixed income markets over the next 12 months. BlackRock's research arm has already recommended reducing exposure to developed market government bonds, a risk-off signal warranting close attention.
Frequently Asked Questions
Q1: What is Kevin Warsh's true stance on the Fed's balance sheet? Warsh has long opposed the Fed's large-scale bond purchases, a position that led to his resignation from the Board in 2011. In a 2025 Wall Street Journal article, he hinted the balance sheet could be reduced by about $2.5 trillion. External analysis suggests his long-term goal is to shrink the current $6.7 trillion size to around $3 trillion, nearly halving it.
Q2: Where did the $6.7 trillion balance sheet come from? Is its size normal? When Warsh joined the Fed Board in 2006, its balance sheet was only about $800 billion. It expanded dramatically after the 2008 crisis with quantitative easing (QE). Another massive expansion followed the 2020 pandemic, peaking near $9 trillion in 2022. After balance sheet reduction ("QT"), it now stands at about $6.7 trillion. However, former Fed officials note the size is closely tied to bank liquidity needs, stating that "anyone who pines for the good old days of $800 billion is completely unrealistic."
Q3: What does the 30-year Treasury yield breaking above 5.15% signify? The 30-year yield touched 5.16% on May 18, its highest since October 2023 and close to a post-2007 crisis high. Bond traders often view 5% as a psychological barrier for the 30-year. Breaking this level indicates a substantive upward shift in market expectations for long-term borrowing costs. The head of U.S. rates strategy at BNP Paribas stated, "Above 5%, the market has completely lost its anchor."
Q4: Why can't Warsh immediately begin balance sheet reduction upon taking office? Balance sheet reduction faces at least four practical constraints: 1) U.S. long-term rates are already rising, and further balance sheet contraction could push borrowing costs higher. 2) The Congressional Budget Office projects a federal budget deficit of 5.8% of GDP in 2026, meaning massive government debt issuance directly counteracts Warsh's reduction intent. 3) Shrinking the balance sheet requires reforming bank regulatory frameworks to lower reserve requirements—a task former Chicago Fed President Charles Evans called "an ambitious project on the scale of the Manhattan Project." 4) After resigning in 2011, Warsh initially supported QE, only becoming a critic once the program became "open-ended." His practical policy stance will require further observation after he assumes the role.
Q5: How does this Treasury yield surge differ from the period before the 2007 financial crisis? The core difference lies in the structure of market expectations. Before 2007, the bond market did not rely on routine central bank intervention. After the 2008 crisis, with QE deployed multiple times—including large-scale purchases during the 2020 pandemic—investors gradually developed a path dependency on the "Fed will ultimately backstop" expectation. Warsh's impending leadership implies this implicit safety net may vanish, forcing the market to reprice the true risk premium required for holding long-term bonds. Furthermore, current drivers are more diverse: Middle East geopolitical conflicts boosting energy prices, persistently large U.S. fiscal deficits, and productivity changes from AI raising neutral rate expectations. These combined factors give the rise in long-term yields a more structural character.
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