SPAB
US Aggregate BondState Street SPDR Portfolio Aggregate Bond ETF
State Street · Tracks Bloomberg US Aggregate Bond Index · Inception May 23, 2007
Composite score
Based on a 0.030% expense ratio.
Based on $9.63B in net assets.
Top-10 holdings represent 9.3% of net assets.
US Aggregate Bond base · ETF wrapper · 4.08% TTM yield.
Tracking error vs. the largest catalog peer tracking the same index. Not yet part of the composite — see methodology.
The composite is a weighted average of the four core sub-scores above (cost, tax efficiency, liquidity, concentration). Missing sub-scores fall back to the per-category median when the category has at least 50% data coverage, so funds without (e.g.) parsed N-PORT holdings aren't accidentally boosted by renormalization. Tracking quality is shown where computable but isn't currently part of the composite weighting. See methodology for formulas, the tracking-quality partial-coverage rationale, and the dimensions we deliberately don't score (methodology v0.5.1).
Use SPAB in our tools
Tool · Cost
Compare SPAB's fee against another fund
Compounds the 0.030% expense ratio against a peer over decades.
Tool · Overlap
Compare SPAB's holdings with peers
Pairwise holdings heatmap, pre-loaded with similar US Aggregate Bond funds.
Tool · TLH
Find a tax-loss harvesting partner for SPAB
Ranks every catalog fund by holdings overlap, flags wash-sale risk.
Tool · Placement
Where should this fund live across your accounts?
Asset-location optimizer — places each fund in taxable / tax-deferred / Roth.
Top holdings
| # | Holding | Weight |
|---|---|---|
| 1 | State Street Global Advisors | 2.68% |
| 2 | State Street Global Advisors | 2.12% |
| 3 | State Street Global Advisors | 1.15% |
| 4 | United States Treasury | 0.85% |
| 5 | United States Treasury | 0.45% |
| 6 | United States Treasury | 0.44% |
| 7 | United States Treasury | 0.43% |
| 8 | United States Treasury | 0.42% |
| 9 | United States Treasury | 0.39% |
| 10 | UMBS, TBA | 0.38% |
Compare SPAB with another fund
Or skim the closest-overlap funds below.
Similar ETFs by holdings overlap
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