CORP vs SPBO

CORPBPIMCO Investment Grade Corporate Bond Index Exchange-Traded Fund

SPBOAState Street SPDR Portfolio Corporate Bond ETF

In short

CORP PIMCO is famous for active bond management. CORP is the opposite: since 2010 it has simply followed the ICE BofA US Corporate Index across roughly 1,400 investment grade corporate bonds, paying income monthly.

SPBO The whole investment-grade corporate bond market in one ticker for three basis points. Most rivals sell you a maturity slice; SPBO owns the lot, and it undercuts other funds tracking the very same Bloomberg index.

Stated mandate

CORP The Fund seeks total return that closely follows the ICE BofA US Corporate Index before fees and expenses, normally investing at least 80% of assets in the index's component securities.

SPBO The fund seeks investment results that generally correspond, before fees and expenses, to the price and yield performance of the Bloomberg U.S. Corporate Bond Index.

Why people hold it

• CORP Narrow mandate, honored: at least 80% of assets in components of the ICE BofA US Corporate Index, and it has tracked that benchmark closely.
• Whole-market credit exposure, roughly 1,400 bonds across the maturity curve, while highly ranked peers like IGSB and IGIB carve off a single maturity band.
• Trading since 2010, a billion-dollar-plus fund that distributes monthly inside a standard 1940 Act ETF wrapper.

• SPBO 0.03% a year against a category median of 0.19%. In bond land, where the yield does the heavy lifting, that fee gap is not a rounding error.
• Thousands of corporate bonds across the full maturity range, so you hold the broad IG corporate market instead of one duration bucket.ssga.com
• Same index, very different tolls: KORP charges 0.29%, JLQD 0.35%, JHCB 0.53%. SPBO sits at the cheap end of that list.
• Running since 2011, pays monthly, and tracks its benchmark about as closely as anything in the investment-grade corporate group.

Worth knowing

• CORP Price is the trade-off: 0.41% a year against a 0.19% cohort median, and USIG follows the same index for 0.04%.
• Moderately traded rather than a volume leader, so spreads can widen in choppy markets. Limit orders are the usual tool.
• Full maturity range means more interest-rate sensitivity than short-duration corporate peers such as IGSB.

• SPBO Full maturity range means long-dated paper is in the mix, so the price moves more when rates move than short-maturity peers like IGSB or SPIB.
• Corporate credit only. No Treasuries or mortgages to lean on, so the fund rides the health of corporate borrowers as well as the rate cycle.ssga.com
• Investment grade by design, US issuers only. No high-yield or emerging-market bonds in the basket.

Full CORP profile⁠

Full SPBO profile⁠