A 30-year U.S. Treasury yield near 5% is rare. It has appeared on only a handful of trading days over the past decade, according to Thornburg Investment Management. Long-end yields have closed in the high-4% range or higher on roughly 20 sessions during that stretch. That is a narrow window for income-focused investors.

Key Takeaways:

• The 30-year Treasury yield has closed in the high-4% range or higher on only about 20 trading days in the past decade.
• TPLS and TMB use active management to chase yield as the Fed shifts under Warsh.
• AI-related debt now makes up 2%-3% of the high-yield market, up from under 1%.

Investors who moved into cash while waiting for a clearer economic signal may be missing that window, Thornburg said in a recent report. Markets rarely reward investors once everything feels safe. Today’s pairing of high yields with shifting Federal Reserve policy may not last long.

That backdrop is drawing fresh attention to actively managed fixed income. It includes the Thornburg Core Plus Bond ETF (TPLS) and the Thornburg Multi Sector Bond ETF (TMB). Both funds aim to capture higher yields and adjust to credit shifts more nimbly than funds tied to a fixed index.

Federal Reserve Chair Kevin Warsh held his first meeting since replacing Jerome Powell. Rates stayed unchanged, and Warsh delivered a hawkish tone even as inflation stays sticky, Thornburg noted.

See more: New Fed Rate Outlook Bodes Well for Senior Loans

Warsh is reviewing Fed communication, balance sheets and data policies, per Thornburg’s research. That process is likely to stir short-term volatility through the end of 2026. Such an environment tends to reward managers who can shift duration and credit exposure, rather than funds tracking a fixed benchmark.

Corporate Debt Adds to the Yield Story

Corporate debt issuance is climbing from both sides of the artificial intelligence trade, Thornburg said. Data-center operators are borrowing to fund computing buildouts. Meanwhile, established software and technology firms are selling bonds to fund their own countermoves.

AI-related supply now makes up between 2% and 3% of the high-yield bond market, according to Thornburg. That’s up from under 1% previously. Credit spreads remain tight even as issuance stays healthy. As a result, bond-by-bond research becomes important for avoiding troubled companies.

That flexibility lets TPLS and TMB add duration at today’s yields, rather than tracking a broad index blindly. Both funds also lean into credit risk only when compensation looks fundamentally justified, according to Thornburg.

TPLS holds 322 positions, according to the fund’s fact sheet as of March 31. It carries a 30-day SEC yield of 4.38% and an effective duration of 6.3 years. Net assets stood at $20.1 million with a 0.45% expense ratio as of that date.

TMB, which leans further into non-investment-grade debt, posted a 30-day SEC yield of 4.40% and an effective duration of 4.2 years, the fact sheet shows. Net assets reached $177.9 million with a 0.55% expense ratio.

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