LDRC vs SPSB

LDRC—iShares iBonds 1-5 Year Corporate Ladder ETF

SPSBAState Street SPDR Portfolio Short Term Corporate Bond ETF

In short

LDRC A bond ladder, prebuilt. LDRC holds a stack of iShares iBonds term funds, so investment-grade corporate maturities under six years sit inside one ticker at 0.10% a year.

SPSB The short end of the corporate bond market, bought wholesale: roughly 1,600 investment-grade corporate bonds maturing in one to three years, for four basis points. Built as a cash-adjacent building block, not a yield swing.

Stated mandate

LDRC The fund seeks to track an index of iShares iBonds Corporate ETFs with maturities under six years, providing an investment-grade corporate-credit bond ladder.

SPSB The fund seeks to track the price and yield performance of the Bloomberg U.S. 1-3 Year Corporate Bond Index before fees and expenses.

Why people hold it

• LDRC One ticker, one ladder: it tracks an index of iShares iBonds corporate funds, each holding bonds that mature in a set year, stretching out to just under six years.ishares.com
• 0.10% a year, below the median fee in the investment-grade corporate bond group, and modest for a wrapper that bundles several underlying funds.
• Maturities stay under six years, keeping it off the long end of the corporate curve where prices move most when rates shift. Income is paid monthly.

• SPSB Costs 0.04% a year against a 0.19% median for investment-grade corporate bond funds. At the short end, where yields are thin, that gap is a real slice of what you keep.
• Nothing in the index matures past three years, so rate moves push the price around less than they do at intermediate corporate funds like SPIB or VCIT.ssga.com
• Roughly 1,600 bonds, market-cap weighted, reconstituted at each month end, with a $300 million minimum issue size. Income arrives monthly.ssga.com
• Trading since 2009 and now a multi-billion-dollar fund that changes hands actively, one of the sturdier implementations in its peer group.

Worth knowing

• LDRC Young (launched November 2024) and thinly traded next to the category's household names, which can mean wider spreads at the moment you trade.
• Cost is the trade-off for structure: plain short-term corporate funds such as IGSB charge less, but hold one bucket of maturities instead of dated rungs.
• Still corporate credit. Investment grade, but downgrades and widening spreads show up in the price, and a fund-of-funds layer sits between you and the bonds.

• SPSB Pure corporate credit, no Treasury ballast. Investment-grade paper still reprices when spreads widen, short maturities or not.ssga.com
• Bonds roll off fast and get replaced at whatever the market pays, so the income stream follows prevailing rates in both directions.ssga.com
• The manager samples the index rather than buying every bond in it, so the portfolio can drift modestly from the benchmark.sec.gov

Full LDRC profile⁠

Full SPSB profile⁠