Vanguard Total Bond Market ETF Tops iShares 3-7 Year Treasury Bond ETF on Yield and Cost. Does That make BND a Buy?

Vanguard Total Bond Market ETF (BND) offers a lower 0.03% expense ratio and a higher 3.94% trailing dividend yield than iShares 3-7 Year Treasury Bond ETF (IEI), but IEI has a lower 5-year max drawdown of 13.9% versus 17.9% for BND. BND outperformed over 1 year (4.22% vs. 2.6%), 3 years (3.93% vs. 3.45%), and 10 years (1.68% vs. 1.35%), while IEI led over 5 years (0.49% vs. 0.19%). The piece is a comparative ETF analysis favoring BND for diversification and long-run returns, with IEI preferred for higher stability and Treasury-only exposure.

Analysis

The immediate read-through is not about the ETFs themselves but about what their relative behavior says on rates positioning: the market is still willing to pay for duration insulation, but it is no longer rewarding pure Treasury beta as much as broader carry plus spread exposure. BND’s better recent performance despite a larger drawdown profile suggests investors have been comfortable harvesting incremental income from credit and MBS without pricing a meaningful default-cycle stress, which is consistent with a “soft landing / higher-for-longer” regime rather than an imminent recession scare.

The second-order implication is that spread sectors are doing the heavy lifting for bond returns, while front- and belly-duration Treasuries remain a cleaner hedge only when equity volatility spikes abruptly. IEI’s lower drawdown profile makes it the better portfolio shock absorber, but that protection is being bought at the cost of lower carry and less upside if rate cuts are delayed; in other words, it is insurance, not alpha. If growth data stay resilient, the return gap could persist as credit and agency-MBS income continues to subsidize total return in BND.

The contrarian angle is that the recent outperformance of BND may be masking latent fragility in the credit component: if spreads reprice even modestly, the fund’s longer and more heterogeneous exposures can give back quickly, while IEI is structurally capped on downside by Treasury quality. The more asymmetric setup is for a modest rates rally with stable growth, where IEI can outperform on price beta even if its yield lags. Over a 3-6 month horizon, the key catalyst is whether the market shifts from “carry matters” to “quality matters” on any growth scare or reacceleration in inflation prints.

Key Decisions for Investors

• Favor IEI over BND as a tactical hedge into the next 4-8 weeks if equity volatility is underpriced; the trade sacrifices carry for cleaner convexity if rates rally on weak macro data.
• If the mandate allows, express a relative-value view with a long IEI / short BND pair for 3-6 months, targeting spread compression in a risk-off move; stop out if credit spreads tighten further and front-end yields remain sticky.
• For income portfolios, keep BND as the core hold but trim on strength after any 20-30 bps rally in Treasuries; the embedded credit/MBS exposure is better monetized when risk assets are calm.
• Use options overlays rather than outright duration if the objective is tail protection: add small IEI call spreads or Treasury futures hedges into data events, since the payoff is better than owning extra BND duration in a benign tape.
• Watch for any widening in investment-grade or MBS spreads over the next 1-2 months; that would be the signal to underweight BND versus pure government duration and shift toward higher-quality hedges.