SPSB vs ZTWO

SPSBAState Street SPDR Portfolio Short Term Corporate Bond ETF

ZTWO—F/M 2-Year Investment Grade Corporate Bond Etf

In short

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.

ZTWO Most funds in the target-maturity aisle have an expiration date. ZTWO doesn't: it keeps rolling, always holding investment-grade corporate bonds 1.5 to under 2.5 years from maturity, so the two-year rung never empties.

Stated mandate

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.

ZTWO The fund is passively managed and seeks to track, before fees and expenses, the price and yield performance of the ICE 2-Year US Target Maturity Corporate Index. It normally invests at least 80% of net assets in investment-grade corporate bonds with 1.5 to less than 2.5 years remaining to maturity.

Why people hold it

• 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.

• ZTWO No maturity date. The index resets, so the fund always holds corporates 1.5 to under 2.5 years out instead of liquidating on a set date and handing back cash to redeploy.yahoo.com
• Roughly 300 investment-grade corporate bonds, index-picked. No single-issuer wager, and one of the cleaner, better-diversified portfolios in its peer group.
• Short maturities mean less price movement when rates swing than longer corporate bond funds, and interest is passed through monthly.

Worth knowing

• 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

• ZTWO 0.15% a year. The big defined-maturity ladders (IBDU, BSCT) run cheaper; that gap is the toll for the rolling structure.
• Nothing matures. Ladder builders who want a dated return-of-principal moment get that from BulletShares and iBonds, not from a perpetual fund.
• Young, small and lightly traded next to the iShares and Invesco lineups, so spreads can widen. Limit orders earn their keep.

Full SPSB profile⁠

Full ZTWO profile⁠