SPAB:what it yields, how rates move it and what it holds
State Street SPDR Portfolio Aggregate Bond ETF. Portfolio as of June 30, 2026, from the fund's SEC filing (Form N-PORT).
Broad bond market. A mix of Treasury, corporate and mortgage bonds, usually following the index of the whole US bond market.
Yield to maturity (YTM)
not computed
25% of the fund is in mortgage-backed bonds. Their yield depends on when homeowners repay early, which public data does not show. Rather than a wrong number, we show none.
- If rates rise 1 pointestimated from its duration, 5.9 years
- -5.9%
- Investment gradeof the credit risk, BBB or better
- 99%
- Size8,303 positions
- $9.6B
In a few words
SPAB holds 8,303 positions. 45% of the portfolio is US Treasury bonds. We show no yield to maturity, because much of it is in bonds whose yield public data cannot give correctly. Its duration is 5.9 years: if rates rise by 1 percentage point, its price falls about 5.9%. In 2022, when rates rose sharply, its total return was -13.2%.
Every ETF in Broad bond marketIf rates change
A rough estimate, if rates moved at once and equally at every maturity.
Price, at once
-5.9%
Ready-made moves
| Change in rates | At once |
|---|---|
| +5.9% | |
| +3.0% | |
| 0.0% | |
| -3.0% | |
| -5.9% | |
| -11.8% |
Past returns
The ETF's total return, price change plus distributions, as the fund reports it to the SEC.
Last 12 months
+3.8%
3 years, average per year
+4.2%
Worst 12 months
-15.7%
Largest fall from a peak
-17.2%
100 at the start 108.5 at the end, distributions reinvested
What it holds
Portfolio as of June 30, 2026: who issued the bonds, when they mature and the largest issuers.
Who issued the bonds
Largest issuers
The 10 largest are 70.9% of the fund.
When they mature
Details
- Positions
- 8,303
- Average coupon
- 3.93%
- Floating rate
- 0.6%
- In other currencies
- 0.0%
- Mortgage-backed
- 24.7%
- In default
- 0.00%
- Hard to value
- 0.00%
- Cash and cash funds
- 4.3%
Maturities as stated on the bonds. Mortgage bonds, many corporate bonds and city bonds can be repaid early, so in practice they mature sooner.
Similar bond ETFs
Same kind as SPAB, nearest in rate sensitivity.
- JCPBJPMorgan Core Plus Bond ETFIf rates +1%-5.9%
- BIVVanguard Intermediate-Term Bond ETFIf rates +1%-5.9%
- DFCFDimensional Core Fixed Income ETFIf rates +1%-5.9%
- SCHZSchwab U.S. Aggregate Bond ETFIf rates +1%-5.8%
- JBNDJPMorgan Active Bond ETFIf rates +1%-6.1%
- AGGiShares Core U.S. Aggregate Bond ETFIf rates +1%-5.8%
| ETF | Yield (YTM) | If rates +1% | 2022 | Size |
|---|---|---|---|---|
| JCPBJPMorgan Core Plus Bond ETF | not computed | -5.9% | -12.6% | $14.6B |
| BIVVanguard Intermediate-Term Bond ETF | 4.66% | -5.9% | -13.3% | $52.4B |
| DFCFDimensional Core Fixed Income ETF | not computed | -5.9% | -15.0% | $11.0B |
| SCHZSchwab U.S. Aggregate Bond ETF | not computed | -5.8% | -13.1% | $10.6B |
| JBNDJPMorgan Active Bond ETF | not computed | -6.1% | – | $8.7B |
| AGGiShares Core U.S. Aggregate Bond ETF | not computed | -5.8% | -13.1% | $138B |
The full analysis
And what about stocks?
Bonds are only one side of investing. With Ploutos AI you can analyse a company through its official SEC filings, look into its financials and understand what lies behind the numbers. Every finding comes with a reference to its source, so you can check the data behind the analysis.
- A fair value range built from the filings
- Earnings quality, debt and red flags
- Insider and institutional moves
- The case for and the case against
How much would SPAB fall if rates rose?
With a duration of 5.9 years, an immediate one-point rise in rates would take about 5.9% off its price. An equal fall would add about the same.
What is SPAB's yield?
For this fund we show no yield to maturity, because much of it is in bonds whose yield public data cannot give correctly.
How did SPAB do in 2022?
In 2022 SPAB returned -13.2% in total, as the fund reports it.
Related pages
This page describes what bond ETFs hold, based on their SEC filings. Bond prices change every day and past returns do not say what comes next.