SPAB vs TAGG

SPABAState Street SPDR Portfolio Aggregate Bond ETF

TAGGAT. Rowe Price QM U.S. Bond ETF

In short

SPAB A 2007-vintage core bond fund priced at 0.03%: roughly 8,500 US investment-grade bonds in one ticket, at the same rock-bottom fee the household names charge for the same index.

TAGG Active bond management at index-fund pricing. T. Rowe Price runs quant models plus human credit research across roughly 600 U.S. investment-grade bonds, aiming to beat the Agg rather than copy it, for 0.08% a year.

Stated mandate

SPAB The fund seeks to track the price and yield performance of the Bloomberg U.S. Aggregate Bond Index before fees and expenses, providing broad exposure to U.S.-dollar-denominated investment-grade bonds.

TAGG The fund seeks total returns above the U.S. investment-grade bond market by investing primarily in U.S. bonds and using quantitative models alongside fundamental bond research.

Why people hold it

• SPAB 0.03% a year against a 0.36% median for its peer group, and the same ticket price as AGG, SCHZ and BBAG on the identical index.
• Roughly 8,500 dollar-denominated investment-grade bonds in one line item, tracking the Bloomberg U.S. Aggregate Bond Index. Diversification you could not assemble bond by bond.ssga.com
• Trades actively and has tracked its index closely, putting it among the stronger implementations in the core-bond group.
• Running since 2007, now a multi-billion-dollar fund, and it pays monthly rather than quarterly.

• TAGG 0.08% a year, a fraction of the typical fund in the aggregate-bond group and within shouting distance of plain index trackers. Rare pricing for an actively run portfolio.
• The mandate is to exceed the Bloomberg U.S. Aggregate Bond Index, not mirror it, using quantitative models alongside fundamental bond research.troweprice.com
• Roughly 600 investment-grade U.S. bonds under one ticker, with distributions paid monthly.
• Live since 2021 and now a multi-billion-dollar fund, and it does what its prospectus describes closely enough to rank among the stronger builds in a crowded core-bond field.

Worth knowing

• SPAB Bond prices move opposite yields. When rates rise the index falls and the fund follows it down; a 0.03% fee cannot cushion that.
• AGG, SCHZ and BBAG hold the same declared index at the same 0.03%. Picking among them comes down to spreads and platform, not the portfolio.
• Investment grade and US dollar only by mandate: high yield and foreign-currency debt sit outside the remit.ssga.com

• TAGG Active means drift. Sector and credit weights can sit away from the index, so returns can land on either side of the Agg.
• Straight index exposure to the same market costs less: BND, SPAB and SCHZ each charge 0.03%.
• It is a bond fund, so it moves with interest rates and carries credit risk, including possible loss of principal.troweprice.com

Full SPAB profile⁠

Full TAGG profile⁠