AGG vs CGCB

AGGAiShares Core U.S. Aggregate Bond ETF

CGCBACapital Group Core Bond ETF

In short

AGG Launched in 2003, one of the first funds to pack the entire U.S. investment-grade bond market into a single ticker: Treasuries, corporates and mortgage bonds, three basis points a year, cash paid monthly.

CGCB Capital Group's core bond ETF uses the Bloomberg US Aggregate as a yardstick rather than a blueprint, and charges 0.27% to do it. The mandate is the unglamorous job bonds get hired for: diversification and capital preservation.

Stated mandate

AGG The fund seeks to track the Bloomberg U.S. Aggregate Bond Index, providing broad exposure to the total U.S. investment-grade bond market.

CGCB The fund seeks to provide the diversification and capital-preservation benefits associated with core bonds.

Why people hold it

• AGG 0.03% a year against a peer-group median near 0.36%. On a bond fund, the fee comes straight out of the coupon, so the gap matters more than it looks.
• A $100 billion-plus fund and very actively traded, the kind of depth that keeps bid-ask costs down for retail-sized orders.
• Tracks the Bloomberg U.S. Aggregate closely, with one of the tightest index-following records in its peer group. Income is distributed monthly.
• Running since 2003, giving it one of the longest track records among U.S. bond index ETFs.

• CGCB At 0.27%, it undercuts the core-bond median of 0.36% and most rivals measured against the same index: JCPB 0.37%, JFLX 0.45%, BOND 0.56%.
• Roughly 600 bonds behind one stated job: the diversification and capital-preservation benefits of core bonds. Income lands monthly.capitalgroup.com
• Portfolio stays tightly aligned with what the prospectus describes, one of the stronger implementations in the core bond group.
• Multi-billion-dollar fund that trades actively, notable for a product that only launched in 2023.

Worth knowing

• AGG Investment grade and U.S. dollar only. High-yield debt and foreign bonds sit outside the mandate, so this is designed as core ballast rather than a yield hunt.
• Rate risk comes as it comes. The index gets tracked whether yields rise or fall, with no manager stepping in to shorten duration.
• The same index is sold by SPAB, SCHZ and BBAG at the same 0.03%. The portfolio is the commodity here; scale and trading depth are the tiebreakers.

• CGCB Plain trackers of the same index run 0.03% (BND, SPAB, SCHZ). You are paying up for security selection instead of a copy of the benchmark.
• Core bonds still move with interest rates and credit conditions. Capital preservation is the stated aim, not a floor under the price.
• Launched in 2023, so its history is shorter than most core bond ETFs sitting next to it.

Full AGG profile⁠

Full CGCB profile⁠