BND vs IEF: Which Is the Better Pick in 2026?

Overview

BND and IEF are both fixed-income ETFs that generate monthly income, but they track entirely different corners of the bond market. BND holds the full U.S. investment-grade bond universe—Treasuries, corporates, and mortgage-backed securities—while IEF focuses narrowly on intermediate-term Treasury bonds with 7- to 10-year maturities. The choice between them hinges on whether you want broad diversification or pure government debt exposure.

How they differ

The biggest difference is scope. BND's underlying index spans the entire investable U.S. bond market (Treasuries, corporates, mortgage bonds), while IEF holds only Treasuries in the 7–10 year bucket. That means IEF has tighter credit risk—no corporate default exposure—but also tighter interest-rate sensitivity: IEF's beta of 1.17 shows it swings harder with rate moves than BND's 0.98 beta.

Yield and fees run nearly identical. BND distributes 4.00% annually; IEF, 3.92%. But BND's expense ratio is 0.03% versus IEF's 0.15%, a fivefold difference. Over 10 years on a $10,000 position, that 0.12% gap costs you roughly $120 in cumulative fees.

Scale and duration are the second tiers of difference. BND is a massive $387 billion fund with a price of $73.88, while IEF is $49 billion at $95.58. IEF's higher price reflects its longer average maturity—7–10 years versus the Aggregate's blend of short, intermediate, and long bonds. Longer duration means more price volatility when rates move.

Who each is best for

BND: Conservative income seekers who want a single holding to represent their entire bond allocation. Best in taxable accounts for those in lower tax brackets; the corporate and mortgage holdings create more taxable ordinary income than Treasuries alone.

IEF: Investors who specifically want Treasury-only exposure and can tolerate higher interest-rate risk. Works well in tax-deferred accounts (IRA, 401k) to sidestep the tax drag of distributions. Suitable for shorter time horizons where duration matters less.

Key risks to know

• Interest-rate sensitivity. IEF's 1.17 beta means a 1% rise in Treasury yields will likely cost it roughly 8–10% in price; BND, with its shorter average duration and corporate cushion, around 6–7%. The longer your hold, the less this matters, but it's acute for anyone with a 2–3 year horizon.

• Credit risk concentration. BND's corporate and MBS exposure dilutes credit risk across thousands of issuers; IEF has zero credit risk but zero diversification beyond maturity. A corporate bond selloff doesn't touch IEF, but a Treasury repricing hits it directly.

• Yield sustainability. Both funds' 4% and 3.92% distributions are supported by current coupon income, not NAV erosion. As long as rates remain stable, distributions stay intact.

Bottom line

If you want simplicity and minimal fees in a single bond holding, BND's broad index exposure and 0.03% cost make it hard to beat. If you're specifically hedging equity risk or building a dedicated Treasury sleeve—and don't mind paying 0.12% extra annually—IEF's pure government debt and higher intermediate duration fit that use case. Neither fund is "better"; the choice depends on whether your goal is comprehensive bond exposure or targeted Treasury allocation.