CAFX vs SPIB

CAFXCCongress Intermediate Bond ETF

SPIBAState Street SPDR Portfolio Intermediate Term Corporate Bond ETF

In short

CAFX A boutique manager's active take on the boring middle of the bond market: Congress buys investment-grade paper itself, keeps average maturity inside ten years, and pays out monthly.

SPIB The middle of the corporate bond curve in one ticker: investment-grade company debt maturing in one to ten years, thousands of issues deep, for 0.04% a year. Trading since 2009.

Stated mandate

CAFX The Fund seeks to maximize total return through active management of a portfolio invested primarily in debt securities and similar instruments.

SPIB The fund seeks to track the Bloomberg Intermediate US Corporate Index and provide exposure to U.S. corporate bonds with maturities of at least 1 year and less than 10 years.

Why people hold it

• CAFX Actively managed rather than index-tracking: the mandate is to maximize total return from U.S.-dollar investment-grade bonds, benchmarked to the Bloomberg U.S. Intermediate Government/Credit Index.
• The prospectus pins dollar-weighted average maturity to a zero-to-ten-year band, so the interest-rate lane is defined by document, not by manager mood.
• 0.35% a year puts it around the middle of the broad bond-fund pack on cost, unusual for active management, and income lands monthly.

• SPIB 0.04% a year sits at the floor of the investment-grade corporate group, a hair off the cheapest name in the top tier (VCIT, 0.03%).
• One fund covers the whole 1-to-10-year span. iShares splits that same range across two tickers (IGSB for 1-5 years, IGIB for 5-10).
• Roughly 5,000 bonds spread single-issuer risk thin, and the fund has tracked its Bloomberg corporate benchmark closely.
• Heavily traded, pays monthly, and rates as one of the stronger implementations in the investment-grade corporate peer group.

Worth knowing

• CAFX The index heavyweights in this category charge 0.03% (BND, SPAB, SCHZ). Active selection here starts each year with that fee gap behind it.
• Launched in 2024, so the live record is short and the fund still sits in the lower half of a crowded aggregate-bond field.
• Shares trade thinly. Spreads and order type matter more here than with the giant core bond ETFs.

• SPIB Pure corporate credit. No Treasuries or agency paper in the mix to cushion a widening in company spreads.
• Intermediate maturities move more on rate swings than a short-dated corporate fund such as IGSB.
• The monthly payout floats with market yields and the bonds the index holds. It is not a fixed amount.

Full CAFX profile⁠

Full SPIB profile⁠