AGGS vs BKAG

AGGSCHarbor Disciplined Bond ETF (AGGS)

BKAGABNY Mellon Core Bond ETF

In short

AGGS Harbor hands the keys to Income Research + Management, a Boston bond boutique whose day job is institutional money, and lets it run an active core bond book at a price near the middle of an index-dominated pack.

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

AGGS The Fund seeks total return.

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

Why people hold it

• AGGS Subadvised since its 2024 launch by Income Research + Management, an independent fixed income firm that manages bond portfolios for institutional and private clients.sec.govharborcapital.com
• At 0.35%, it charges about what the typical aggregate-bond ETF does, which is unusual for a portfolio picked bond by bond rather than copied from an index.
• Pays monthly across roughly 200 positions, so income lands on a steady cadence instead of quarterly lumps.
• Stays in its lane: total return from a diversified book of mostly US dollar bonds, matching what the prospectus describes.

• 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

• AGGS Thinly traded on a small asset base, so bid-ask spreads can run wider than the giant index bond funds.
• Index rivals BND, SPAB and SCHZ charge 0.03%, so the active work here starts with a real fee gap to make up.
• Launched in 2024, so the track record is short and covers a narrow slice of rate history.

• 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 AGGS profile⁠

Full BKAG profile⁠