What's Behind the Big Surge in US Government Bond Yields
What's Behind the Big Surge in US Government Bond Yields
3 hours agoOdd LotsBloomberg
Podcast36 min 36 sec
Listen to Episode
Note: AI-generated summary based on third-party content. Not financial advice. Read more.
Quick Insights

Investors seeking dependable income should capitalize on yields above 5% by buying long-duration debt like the 30-year Treasury (US30Y) and 10-year Treasury (US10Y), as heavy supply keeps rates elevated despite modest government buybacks starting September 9. Complement government holdings with high-quality Big Tech corporate bonds, which offer attractive yields as tech hyperscalers issue up to $1 trillion in debt over the next few years. Position for a steepening yield curve by prioritizing short-term Treasury bills over intermediate paper to align with the Federal Reserve's shift toward shorter-maturity holdings. Approach mortgage-backed securities (MBS) with caution, as the Fed's balance sheet runoff is expected to widen yield spreads relative to shorter-term debt.

Detailed Analysis

U.S. Treasury Bonds (US10Y, US30Y)

  • Yield Dynamics: Yields on long-term U.S. government debt, such as the 30-year Treasury, have risen above 5%, driven primarily by massive supply rather than runaway inflation expectations.
  • Supply and Demand Pressures: The U.S. Treasury market has expanded from approximately $18 trillion a decade ago to over $31 trillion (growing at about $2 trillion per year). With foreign central banks no longer expanding purchases, domestic discretionary investors (hedge funds, mutual funds, insurers, and pension funds) require higher yields to absorb additional long-duration debt.
  • Treasury Buyback Programs: Treasury Secretary Scott Bessent announced an increase in Treasury buybacks (around $4 billion to $8 billion, with purchases starting September 9), signaling the view that long-end yields are overly elevated. However, academic research suggests that while buybacks successfully clean up illiquid, "off-the-run" debt to improve market plumbing, they lack the multi-hundred-billion-dollar scale required to permanently push long-term market yields lower against broader macroeconomic forces.
  • Shift Toward Short-Term Issuance: The Treasury is shifting more issuance into shorter-term Treasury bills. While the average maturity of U.S. debt remains relatively healthy at roughly six years, excessive reliance on short-term debt increases interest expense volatility for the government.

Takeaways

  • Expect Elevated Long-Term Yields: Structural deficits and high supply mean long-term yields are likely to remain elevated, offering attractive fixed-income income opportunities for discretionary investors demanding yield compensation.
  • Caution on Government Interventions: Government signaling and modest buyback programs may cause brief market rallies, but they are unlikely to alter the broader trend in long-term rates.

Big Tech / Hyperscaler Corporate Bonds

  • Competition for Capital: Major technology hyperscalers are borrowing heavily in corporate debt markets, potentially reaching up to $1 trillion in total debt issuance over the next few years.
  • Crowding Out: Although hyperscalers issue significant debt, the $31+ trillion government debt market remains the primary source of supply competing for institutional balance sheets across pension funds and life insurers.

Takeaways

  • High-Quality Yield Alternatives: Large-cap tech and hyperscaler investment-grade bonds continue to offer competing yield for investors looking to balance risk-free government paper with high-quality corporate credit.

Federal Reserve Balance Sheet & Liquidity Strategy

  • Balance Sheet Restructuring: The Federal Reserve is exploring ways to reduce its footprint and balance sheet to avoid perceptions of "fiscal dominance" (subordinating monetary policy to government financing needs).
  • Asset Composition Shift: Potential recommendations include replacing long-term Treasury holdings with short-term Treasury bills (to match interest paid on commercial bank reserves and reduce income volatility) while allowing mortgage-backed securities (MBS) to roll off.
  • Reserve Constraints: Commercial banks are incentivized to maintain high levels of reserves at the Fed to satisfy liquidity regulations and earn full market rates, creating a structural "ratchet effect" that prevents the balance sheet from returning to pre-2008 levels.

Takeaways

  • Focus on Curve Structure: If the Fed shifts asset holdings from long-term notes to Treasury bills while letting mortgage assets run off, investors should prepare for a steeper yield curve and potentially wider spreads on mortgage-backed securities relative to short-term paper.
Ask about this postAnswers are grounded in this post's content.
Episode Description
Global bond yields are at their highest level since 2008, with the 30-year US Treasury touching 5% just before Treasury Secretary Scott Bessent announced a surprise increase of his department's bond buyback program and Fed Chairman Kevin Warsh made his hawkish speech at Jackson Hole. So what's driving yields higher? And what options do policymakers have to bring them down? In this episode we speak with Stanford Professor Darrell Duffie, who's been researching bonds for years, including presenting a paper at Jackson Hole in 2023 about how to fix the US Treasury market. A lot has changed since then, and at this year's Jackson Hole symposium, we caught up with Duffie to talk about everything going on in the bond market, as well as the challenge of shrinking the Fed's balance sheet.  Get tickets to see Odd Lots live in LA! See omnystudio.com/listener for privacy information.
About Odd Lots
Odd Lots

Odd Lots

By Bloomberg

<p>Bloomberg's Joe Weisenthal and Tracy Alloway explore the most interesting topics in finance, markets and economics. Join the conversation every Monday and Thursday.</p>