Generated October 3, 2026.
Overview
BND and SHY are both broad-market fixed-income ETFs tracking U.S. government and investment-grade bonds, but they differ sharply in duration and credit composition. BND targets the full Bloomberg Aggregate Index—a mix of Treasuries, investment-grade corporates, and mortgage-backed securities—while SHY focuses exclusively on short-term Treasury securities maturing in one to three years. The difference in maturity profiles and credit risk creates distinct yield and interest-rate sensitivity profiles.
How they differ
The biggest difference is maturity and credit exposure. BND holds a barbell of bonds across all maturities and credit qualities within the investment-grade universe, while SHY is limited to Treasury debt in the one- to three-year bucket. That durational tightness explains why SHY's beta is 0.22, less than one-quarter of BND's 0.98—SHY moves far less when interest rates swing.
Yield follows naturally from that structure. BND offers 4.26%, partly supported by its corporate and MBS holdings, which carry credit spreads above Treasury yields. SHY yields 3.57%, constrained by short-term Treasury rates alone and zero credit risk. Both distribute monthly.
On costs, BND's 0.03% expense ratio undercuts SHY's 0.15% by a meaningful margin, a reflection of BND's much larger $162B asset base. SHY has $26.2B, still substantial but a fraction of BND's scale.
Who each is best for
BND: Fits investors seeking broad fixed-income diversification and willing to accept moderate interest-rate sensitivity in exchange for higher current yield. Works well for those holding bonds as a core ballast to equities and comfortable with exposure to corporate and mortgage credit.
SHY: Fits investors prioritizing capital stability and predictable returns over high income, particularly those who view bonds as a cash substitute or ultra-conservative portfolio anchor. Designed for holders who want to minimize duration risk and accept lower yields in exchange for minimal interest-rate swings.
Key risks to know
- Interest-rate duration mismatch. BND's 0.98 beta means a 1% rise in rates can erode NAV by roughly 1%. SHY's 0.22 beta limits that loss to about 0.2%, but this tradeoff means BND holders absorb meaningfully more mark-to-market volatility if rates spike.
- Credit spread compression or widening. BND's corporate and mortgage holdings are sensitive to shifts in risk appetite. A sudden widening of credit spreads—such as during a recession or credit event—can depress BND's price independently of Treasury yields, a risk SHY does not face.
- Reinvestment timing on short bonds. SHY's one- to three-year maturity horizon means frequent principal paydowns. Rising or falling rates when those bonds mature will affect the yield on reinvested proceeds, creating income variability that longer-duration funds don't experience as acutely.
Bottom line
If you want diversified bond exposure and can tolerate moderate interest-rate swings, BND's broader credit mix and lower costs make it a core holding. If you prioritize stability and don't need high income—or want to keep powder dry for rising-rate environments—SHY's short duration and Treasury purity offer downside cushion. Past performance does not predict future results.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.
