AGGM vs BKAG

AGGMAiShares 1-10 Year U.S. Aggregate Bond ETF

BKAGABNY Mellon Core Bond ETF

In short

AGGM Government and credit, nothing else: GBF holds Treasuries and investment-grade corporate bonds across the maturity spectrum, tracking a Bloomberg index since 2007 for 0.20% a year.

BKAG A core bond index fund that charges nothing. BKAG tracks the same Bloomberg US Aggregate benchmark the giants track, at a 0.00% expense ratio, and has been doing it since 2020.

Stated mandate

AGGM The fund seeks to track an index of U.S. dollar-denominated government and investment-grade corporate bonds, providing diversified fixed-income exposure across sectors and maturities.

BKAG The fund seeks to track the Bloomberg US Aggregate Total Return Index.

Why people hold it

• AGGM A 0.20% fee, below the typical core bond ETF in its category.
• Tracks the Bloomberg U.S. Government/Credit Bond Index tightly, one of the cleanest index implementations in a crowded core-bond field.
• Pays monthly, so income arrives on a steady cadence rather than quarterly.
• Live since 2007 under the iShares roof, with a full market cycle of history behind the mandate.

• BKAG A 0.00% expense ratio. The median fund in the core bond group charges 0.36%, and even the cheap giants (BND, SPAB, SCHZ) charge 0.03%.
• Tracks the Bloomberg US Aggregate Total Return Index tightly, one of the closest index-following records in its peer group.
• Broad by design: roughly 4,000 bonds in the portfolio, with distributions paid monthly rather than quarterly.
• A multi-billion-dollar fund from BNY Mellon, wrapped in a standard 1940 Act ETF structure with no exotic mechanics.

Worth knowing

• AGGM It trades lightly next to the category's giants. Limit orders matter more here than with the household-name bond funds.
• Broad total-bond rivals undercut it on fee: BND, SPAB and SCHZ each run 0.03%, though their indexes also include securitized debt.
• Rate risk is the main lever. The index spans sectors and maturities, so prices move inversely to yields, and longer bonds move most.

• BKAG Rate risk is the trade-off. This is full-market bond exposure, and bond prices move opposite interest rates. Volatility is the weakest part of its profile.
• Moderately traded, not one of the volume monsters in the category. Spreads and limit orders matter more here than with the largest core bond names.
• At zero, the fee edge over 0.03% rivals is real but small in dollar terms, so tracking and trading costs do more of the work.

Full AGGM profile⁠

Full BKAG profile⁠