BKAG vs GCOR

BKAGABNY Mellon Core Bond ETF

GCORAGoldman Sachs Access U.S. Aggregate Bond ETF

In short

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.

GCOR Not the plain Agg. GCOR tracks a custom FTSE Goldman Sachs index that screens investment-grade bonds for liquidity, seasoning and weakening corporate fundamentals, at 0.08% net of a waiver through December 29, 2026.

Stated mandate

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

GCOR The Fund seeks to closely track, before fees and expenses, the performance of the FTSE Goldman Sachs US Broad Bond Market Index.

Why people hold it

• 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.

• GCOR Screens are the point: corporate issuers are ranked on operating margin and leverage each quarter, mortgage bonds on seasoning, and the weakest-ranked get trimmed or dropped.lseg.comgsam.com
• At 0.08% net of a waiver through December 29, 2026 (0.09% gross), it undercuts the core-bond category median, rare for a rules-based twist on the Agg.
• Roughly 1,800 bonds spanning Treasuries, agency, mortgage, asset-backed and corporate debt, with income paid monthly.gsam.com
• Tracking has been tight since the 2020 launch, one of the stronger implementations in a crowded core-bond field.

Worth knowing

• 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.

• GCOR The vanilla trackers (AGG, BND, SPAB, SCHZ) charge 0.03% with no waiver attached, so the screens cost a few extra basis points.
• By design it holds a different mix than the standard Agg, so its results can drift from the benchmark most core bond funds quote.lseg.com
• Moderately traded and not among the category's giants, so spreads can run wider than the mega-funds'.

Full BKAG profile⁠

Full GCOR profile⁠