Generated October 10, 2026.
Overview
These four ETFs all track U.S. investment-grade bonds but differ sharply in scope and credit exposure. AGG and BND are broad-market trackers spanning Treasuries, agencies, mortgages, and investment-grade corporates—the entire U.S. aggregate bond index. LQD and VCIT focus exclusively on corporate debt, with LQD capturing the full maturity spectrum and VCIT narrowing to intermediate-term maturities. The yield spread between the broad funds (around 4.23%) and corporate-only funds (5.13%–5.20%) reflects the credit-risk premium baked into corporates versus the duration drag from longer-dated Treasury holdings in the aggregate indices.
How they differ
The fundamental split is asset-class scope: AGG and BND hold Treasuries, agencies, and mortgages alongside corporates, while LQD and VCIT own only investment-grade corporate bonds. Within that split, VCIT deliberately screens for intermediate-term corporates, making it structurally shorter in duration than LQD's broader maturity ladder; that shows up in VCIT's lower beta of 1.08 versus LQD's 1.35, meaning VCIT dampens interest-rate swings more. Yield-wise, LQD tops the group at 5.13% and VCIT at 5.20%, compared to 4.23% for AGG and 4.23% for BND—the extra credit exposure is worth roughly 85 to 96 basis points. Cost-wise, AGG and BND both charge 0.03%, while VCIT matches that at 0.03% despite its narrower mandate; LQD costs 0.14%, the highest in the group. BND edges AGG on asset base ($163B versus $137B), and VCIT trails both at $65.6B.
Who each is best for
- AGG: Fits investors seeking the simplest, broadest exposure to U.S. fixed income in a single ultra-low-cost holding, with no need to manage maturity or credit slices separately.
- LQD: Suits those willing to layer on corporate credit risk in exchange for higher yield, particularly investors constructing a multi-ETF bond portfolio and wanting full-spectrum corporate maturity access.
- VCIT: Matches investors seeking corporate-bond income while staying in the intermediate-term zone, reducing the interest-rate sensitivity that longer-dated bonds carry.
Key risks to know
- Credit-spread widening risk for LQD and VCIT. Corporate bond prices fall when credit spreads expand (issuers pay higher yields to refinance), and both funds concentrate in investment-grade corporates where spread moves amplify relative to Treasury benchmarks. LQD's broader maturity range and VCIT's intermediate tilt both leave room for spread volatility.
- Interest-rate duration risk scales with maturity. LQD's full-maturity corporate universe and AGG and BND's Treasury and mortgage holdings carry longer duration than VCIT; rising rates erode NAV more steeply in LQD, AGG, and BND than in the intermediate-focused VCIT.
- Refinancing risk in low-rate environments. When rates fall, issuers call bonds, forcing LQD and VCIT holders to reinvest proceeds at lower yields. AGG and BND face this indirectly through mortgage holdings, which prepay similarly.
- Corporate earnings deterioration or recession. A slowdown that pressures issuer cash flow raises default risk and widens spreads across LQD and VCIT simultaneously, creating correlation when diversification is most needed.
Bottom line
If you want maximum diversification and minimal fuss, AGG and BND are near-equivalent choices at 0.03% cost; BND's slightly larger asset base may offer marginally tighter trading. If you're comfortable taking on corporate credit risk for the 0.9% basis-point yield lift, LQD gives you the full corporate spectrum; VCIT offers a similar yield at the same rock-bottom 0.03% cost but with less duration volatility by design. The tradeoff is straightforward: broader diversification and lower yields versus concentrated credit exposure and higher yields. Past performance doesn't predict future results, and spread and rate environments will shape returns as much as the fund's construction.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.
