Generated July 2026 from current fund data.
Overview
AGG and LQD are both investment-grade bond ETFs issued by iShares, but they target different segments of the fixed-income market. AGG tracks the broad Bloomberg U.S. Aggregate Bond Index, which includes Treasuries, investment-grade corporates, mortgage-backed securities, and asset-backed securities. LQD focuses exclusively on the iBoxx USD Liquid Investment Grade Index, a narrower universe of investment-grade corporate bonds.
How they differ
The biggest difference is scope: AGG holds the entire U.S. investment-grade bond market, while LQD holds only corporate bonds. This makes AGG a true core fixed-income holding and LQD a focused bet on corporate credit. AGG's 4.05% distribution rate versus LQD's 4.26% reflects this—LQD's higher yield comes from excluding lower-yielding government and mortgage debt. On cost and scale, AGG dominates: at $136B in AUM and a 0.03% expense ratio, it undercuts LQD's $29.2B and 0.14% ratio. Finally, LQD carries higher interest-rate sensitivity, with a beta of 1.34 compared to AGG's 0.99, meaning it will amplify moves in the broader bond market.
Who each is best for
AGG: Fits investors seeking a diversified, low-cost foundation for fixed-income exposure across all major U.S. investment-grade segments, including government and mortgage-backed securities.
LQD: Fits investors who want to isolate corporate bond credit risk and are willing to accept higher sensitivity to rate moves in exchange for a tighter yield advantage over Treasuries.
Key risks to know
- Credit spread widening: LQD's exclusive focus on corporate bonds means it bears full credit-spread risk if corporate borrowers face deteriorating fundamentals. A widening of investment-grade spreads will hurt LQD more than AGG, which is buffered by Treasury and mortgage holdings.
- Interest-rate sensitivity mismatch: LQD's beta of 1.34 versus AGG's 0.99 indicates material additional duration risk in rising-rate environments. When yields climb, LQD's price will fall harder.
- Liquidity concentration in LQD's index: The Markit iBoxx index emphasizes "liquid" credits, which may mean reduced diversification within the corporate universe. AGG's broader mix, including less-liquid mortgage-backed and asset-backed securities, carries different liquidity dynamics.
- Overlapping holdings and performance correlation: Both funds hold investment-grade corporates, so their price movements may be correlated during stress—diversification benefits between them are limited.
Bottom line
If you want a simple, low-cost core bond position that spans Treasuries, corporates, and mortgages, AGG stands out with its $136B scale and 0.03% expense ratio. If you're targeting corporate credit specifically and willing to accept higher interest-rate sensitivity for a modest yield pickup, LQD offers a focused alternative. Past performance doesn't predict future results; both funds' returns depend on the direction of rates and the health of corporate credit at the time you invest.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.