Corporate ETF IGLB Yields 70 Basis Points Over Treasury Rival VGLT
Fixed-income investors choosing between long-duration corporate and government bond exposure face a 70-basis-point yield gap between the iShares IGLB and Vanguard VGLT funds.
Fixed-income investors weighing long-duration strategies must choose between credit risk and sovereign safety, a decision currently highlighted by a 70-basis-point yield gap between two leading exchange-traded funds. The iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) offers a 5.40% trailing yield, while the Vanguard Long-Term Treasury ETF (VGLT) pays 4.70%.
Both vehicles were launched in 2009, yet they serve distinctly different purposes within a fixed-income allocation. IGLB generates its higher income by holding 3,814 high-quality corporate bonds denominated in U.S. dollars, all with maturities exceeding a decade. This massive portfolio limits single-issue risk, with no individual holding accounting for more than 0.29% of total assets. Trading recently around $48.91 a share, the fund charges a 0.04% expense ratio and has distributed $2.61 per share over the past year.
In contrast, VGLT provides pure exposure to U.S. government debt through just 102 holdings with average maturities spanning 10 to 25 years. Its portfolio is heavily concentrated in specific Treasury notes and bonds, with the top three positions each carrying weights between 2.20% and 2.22%. Trading near $53.95, VGLT is slightly cheaper at a 0.03% expense ratio and has paid $2.52 per share recently.
The divergence in yields reflects the fundamental difference in risk profiles and historical volatility. VGLT eliminates credit default risk but leaves investors heavily exposed to interest rate volatility due to its extended duration. IGLB introduces corporate credit risk, though its investment-grade mandate and vast diversification mitigate the impact of any single issuer's distress.
For market professionals positioning for rate cuts, both funds offer the long-dated exposure needed to capitalize on falling yields. The choice ultimately hinges on whether allocators prefer the absolute safety of U.S. Treasuries or are willing to accept marginal credit risk for the additional income.
