US Treasury yields have moved sharply higher since the Federal Reserve left its policy rate unchanged in July, with the sell-off particularly pronounced at the long end of the yield curve. The 30-year Treasury yield recently climbed above 5.3 per cent, around its highest level in nearly two decades, while the 10-year yield approached 4.8 per cent. Interestingly, this occurred even as July inflation data came in relatively benign, highlighting that forces beyond expectations for Fed policy are increasingly influencing longer-term interest rates.

At its July meeting, the Federal Reserve maintained the federal funds target range at 3.50 per cent –3.75 per cent, citing solid economic activity and inflation above its 2 per cent target. Subsequent data provided some encouragement on inflation. Headline CPI inflation eased to 3.4 per cent year-over-year in July from 3.5 per cent in June, while core inflation slowed to 2.5 per cent from 2.6 per cent. Ordinarily, softer inflation and reduced expectations for further Fed tightening would support Treasury prices. Instead, long-term yields have remained unusually elevated.

Why Are Long-Term Yields Rising?

The principal concern is increasingly fiscal rather than monetary. Large US budget deficits and rising government debt mean the Treasury must continue issuing substantial amounts of securities. Investors are consequently demanding higher yields to absorb this supply, particularly at longer maturities. Treasury’s latest borrowing projections continue to point to substantial financing requirements.

This contributes to a rise in the term premium—the additional compensation investors demand for holding long-duration bonds rather than repeatedly investing in shorter-term securities. Investors face greater uncertainty surrounding future inflation, fiscal policy, and the eventual path of interest rates, making 20- and 30-year bonds less attractive unless yields provide adequate compensation.

Inflation risk has also not disappeared. Oil prices have risen amid renewed geopolitical tensions in the Middle East, creating concerns that energy costs could slow the disinflation process. Consequently, investors appear reluctant to extrapolate one favourable CPI report into a sustained return to 2 per cent inflation.

Another factor is demand. Foreign appetite for US government securities has softened while heavy corporate issuance, including significant borrowing by large technology companies, is competing with Treasuries for investors’ capital. Similar fiscal and inflation concerns have simultaneously pushed long-term government yields higher in Europe and Japan, suggesting the phenomenon is broader than the United States.

How Have Markets Responded?

Higher long-term yields have tightened financial conditions. Mortgage and corporate borrowing costs have risen, while equities — particularly highly valued growth stocks — have faced pressure because higher discount rates reduce the present value of future earnings. The Treasury yield curve has also steepened, reflecting the unusual situation in which expectations for additional Fed tightening have moderated while longer-term yields remain elevated.

Should Bond Investors Be Concerned?

Investors should be cautious but not necessarily alarmed. Long-duration bondholders remain vulnerable to further mark-to-market losses if yields continue rising. A 30-year bond, for example, can experience substantial price volatility from relatively small changes in yields.

However, higher yields also create increasingly attractive opportunities. Investors purchasing Treasuries today are locking in income levels not available for many years. If economic growth eventually slows, inflation continues moderating, and the Fed ultimately moves towards easing, longer-duration bonds could generate meaningful capital gains in addition to their higher coupons.

The key, therefore, is duration management rather than abandoning bonds. Investors requiring near-term liquidity may favour short- and intermediate-term securities, where yields remain attractive with substantially less interest-rate risk. Longer-duration exposure can be accumulated gradually rather than attempting to identify the precise peak in yields.

For bond investors, the current sell-off represents both a warning and an opportunity. Fiscal deterioration and persistent inflation uncertainty justify higher long-term risk premiums and could keep yields elevated for longer. Nevertheless, for investors with appropriate time horizons and the ability to tolerate short-term volatility, today’s higher yields are materially improving prospective long-term returns. The more prudent response may, therefore, be to manage duration carefully and gradually extend maturity as yields become increasingly attractive rather than retreating from fixed income altogether.

Eugene Stanley is vice president, fixed income & foreign exchange at Sterling Asset Management. Sterling provides financial advice and instruments in US dollars and other hard currencies to the corporate, individual, and institutional investor. Visit our website at www.sterling.com.jm

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Eugene Stanley