BKAG vs WCPB

BKAGABNY Mellon Core Bond ETF

WCPBBWeitz Core Plus 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.

WCPB Weitz has been an independent Omaha shop since 1983. In 2025 it put its fixed income playbook in an ETF: an actively run core bond portfolio that hunts income in the mortgage and asset-backed corners the Agg leaves thin.

Stated mandate

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

WCPB The fund's primary objectives are current income and capital preservation.

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.

• WCPB Built to roam where the Agg does not. The fund's own materials point to agency and non-agency mortgages, asset-backed paper and select corporate credit as the "plus" in core plus.weitzinvestments.com
• Income comes first in the mandate: current income and capital preservation are the stated objectives, and cash goes out monthly.
• Not a new idea in a new wrapper. Weitz runs the same research-driven fixed income process it has used in its mutual funds, and the ETF discloses its holdings daily.businesswire.comweitzinvestments.com
• What sits in the portfolio lines up closely with the income-and-preservation mandate on the label, which is not a given among active bond funds.

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.

• WCPB 0.45% a year sits above the 0.36% category median and far above 0.03% index trackers like BND and SPAB. You are paying for active judgment, not index replication.
• It opened in August 2025, so the record is short and trading is lighter than the category's giants, which can mean wider spreads on the way in and out.
• Stepping outside the Agg into structured credit means results can diverge from a plain aggregate index fund, in either direction.weitzinvestments.com

Full BKAG profile⁠

Full WCPB profile⁠