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Market Commentary

Weekly commentary providing market analysis from Wells Fargo Investment Institute.

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September 16, 2026

Tony Miano, CFA, CAIA, Investment Strategy Analyst

When everyone wants to borrow

Key takeaways

  • Both government and corporate borrowers have issued significant debt, helping to drive yields to multi-year highs.
  • The rise in yields is a headwind for fixed-income investors, but we do not see default on the horizon. Investors may wish to hold onto long-term bonds to maturity, instead of selling into weakness, and deploy new cash in short-term fixed-income securities.

Borrowing and interest are among the most familiar concepts in finance. Most people understand that if you lend something to a friend for an extended period of time, you expect it back along with something extra for the inconvenience. That’s true if you’re lending a classmate a textbook or a corporation your money by buying a bond. Repayment with interest is a simple idea, but it is vitally important for bond investors.

As the U.S. government has persistently run a budget deficit, large amounts have been borrowed and bonds issued to fund the debt. Recently, major corporations have also issued significant debt to fund the buildout of artificial-intelligence (AI) infrastructure. Generally speaking, the more a government or corporation borrows, the higher the yield to the lenders. You might be more cautious if your classmate asks for not just your algebra notes but your geography textbook as well. It’s not surprising then that yields have risen to multi-year highs. This surge of borrowing seems unlikely to end soon, which should pressure yields higher.

Yet, larger borrowing does not make default either imminent or inevitable. Corporate earnings have generally remained strong, and the extra yield on investment-grade corporate debt above a comparable Treasury yield has not increased significantly this year. As for U.S. Treasury debt, no other country matches U.S. economic size or ability to raise revenue through taxes. Yes, we do believe that the U.S. Treasury’s current pace of borrowing is unsustainable, but the recent rise in yields has not shown investor panic, nor, again, have spreads widened over corporate debt. Our view is that investors want to be paid more as more debt issuers — public and private — come to the marketplace.

Not all debt is created equal. Additional corporate debt places upward pressure on yields today but we believe it will generate future economic growth and extra revenue to pay Treasury bond holders. We addressed this outcome in detail in our recent report, “Can AI Help Pay America’s Bills?” Just as borrowing a textbook helps a student learn and be more productive, investing in technology makes workers and machines more productive and, over time, promotes stronger economic growth.

For now, we view the extra bond issuance as pushing bond yields higher and reducing bond returns. Thus, when allocating new funds, we favor short-term fixed-income securities whose prices and returns are less sensitive to rising yields. Investors holding longer-term bonds should consider their cash-flow requirements and may prefer to wait for maturity rather than sell into potentially falling prices.

Risk considerations

Each asset class has its own risk and return characteristics. The level of risk associated with a particular investment or asset class generally correlates with the level of return the investment or asset class might achieve. Stock markets, especially foreign markets, are volatile. Stock values may fluctuate in response to general economic and market conditions, the prospects of individual companies, and industry sectors. Bonds are subject to market, interest rate, price, credit/default, liquidity, inflation and other risks. Prices tend to be inversely affected by changes in interest rates. High yield (junk) bonds have lower credit ratings and are subject to greater risk of default and greater principal risk. Although Treasuries are considered free from credit risk they are subject to other types of risks. These risks include interest rate risk, which may cause the underlying value of the bond to fluctuate.

General Disclosures

Global Investment Strategy (GIS) is a division of Wells Fargo Investment Institute, Inc. (WFII). WFII is a registered investment adviser and wholly owned subsidiary of Wells Fargo Bank, N.A., a bank affiliate of Wells Fargo & Company.

The information in this report was prepared by Global Investment Strategy. Opinions represent GIS’ opinion as of the date of this report and are for general information purposes only and are not intended to predict or guarantee the future performance of any individual security, market sector or the markets generally. GIS does not undertake to advise you of any change in its opinions or the information contained in this report. Wells Fargo & Company affiliates may issue reports or have opinions that are inconsistent with, and reach different conclusions from, this report.

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