SPAB vs. SSAFX
Compare and contrast key facts about SPDR Portfolio Aggregate Bond ETF (SPAB) and State Street Aggregate Bond Index Portfolio (SSAFX).
SPAB is a passively managed fund by State Street that tracks the performance of the Bloomberg U.S. Aggregate Bond Index. It was launched on May 23, 2007. SSAFX is managed by State Street. It was launched on Sep 19, 2014.
Performance
SPAB vs. SSAFX - Performance Comparison
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SPAB vs. SSAFX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SPAB SPDR Portfolio Aggregate Bond ETF | 0.13% | 7.25% | 1.25% | 5.56% | -13.04% | -1.77% | 7.39% | 8.67% | -0.18% | 3.71% |
SSAFX State Street Aggregate Bond Index Portfolio | -0.18% | 6.81% | 1.34% | 5.61% | -13.30% | -1.72% | 978.57% | 8.69% | -0.12% | 3.38% |
Returns By Period
In the year-to-date period, SPAB achieves a 0.13% return, which is significantly higher than SSAFX's -0.18% return. Over the past 10 years, SPAB has underperformed SSAFX with an annualized return of 1.64%, while SSAFX has yielded a comparatively higher 27.88% annualized return.
SPAB
- 1D
- 0.27%
- 1M
- -1.75%
- YTD
- 0.13%
- 6M
- 1.09%
- 1Y
- 4.38%
- 3Y*
- 3.62%
- 5Y*
- 0.21%
- 10Y*
- 1.64%
SSAFX
- 1D
- 0.53%
- 1M
- -1.96%
- YTD
- -0.18%
- 6M
- 0.82%
- 1Y
- 4.12%
- 3Y*
- 3.42%
- 5Y*
- 0.15%
- 10Y*
- 27.88%
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SPAB vs. SSAFX - Expense Ratio Comparison
SPAB has a 0.03% expense ratio, which is higher than SSAFX's 0.02% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
SPAB vs. SSAFX — Risk / Return Rank
SPAB
SSAFX
SPAB vs. SSAFX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR Portfolio Aggregate Bond ETF (SPAB) and State Street Aggregate Bond Index Portfolio (SSAFX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| SPAB | SSAFX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.03 | 1.04 | -0.01 |
Sortino ratioReturn per unit of downside risk | 1.47 | 1.49 | -0.02 |
Omega ratioGain probability vs. loss probability | 1.18 | 1.18 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.82 | 1.96 | -0.14 |
Martin ratioReturn relative to average drawdown | 5.08 | 5.43 | -0.35 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| SPAB | SSAFX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.03 | 1.04 | -0.01 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.04 | 0.02 | +0.01 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.30 | 0.10 | +0.20 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.51 | 0.09 | +0.41 |
Correlation
The correlation between SPAB and SSAFX is 0.92, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
SPAB vs. SSAFX - Dividend Comparison
SPAB's dividend yield for the trailing twelve months is around 3.98%, less than SSAFX's 4.08% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SPAB SPDR Portfolio Aggregate Bond ETF | 3.98% | 3.97% | 3.86% | 3.34% | 2.59% | 2.11% | 2.43% | 2.92% | 2.96% | 2.67% | 2.63% | 2.59% |
SSAFX State Street Aggregate Bond Index Portfolio | 4.08% | 3.70% | 3.76% | 3.16% | 2.49% | 1.90% | 2.41% | 2.88% | 2.82% | 2.42% | 2.21% | 3.21% |
Drawdowns
SPAB vs. SSAFX - Drawdown Comparison
The maximum SPAB drawdown since its inception was -18.56%, roughly equal to the maximum SSAFX drawdown of -18.74%. Use the drawdown chart below to compare losses from any high point for SPAB and SSAFX.
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Drawdown Indicators
| SPAB | SSAFX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.56% | -18.74% | +0.18% |
Max Drawdown (1Y)Largest decline over 1 year | -2.52% | -2.52% | 0.00% |
Max Drawdown (5Y)Largest decline over 5 years | -17.96% | -18.10% | +0.14% |
Max Drawdown (10Y)Largest decline over 10 years | -18.56% | -18.74% | +0.18% |
Current DrawdownCurrent decline from peak | -2.43% | -3.20% | +0.77% |
Average DrawdownAverage peak-to-trough decline | -3.09% | -4.44% | +1.35% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.90% | 0.91% | -0.01% |
Volatility
SPAB vs. SSAFX - Volatility Comparison
SPDR Portfolio Aggregate Bond ETF (SPAB) and State Street Aggregate Bond Index Portfolio (SSAFX) have volatilities of 1.58% and 1.60%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SPAB | SSAFX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.58% | 1.60% | -0.02% |
Volatility (6M)Calculated over the trailing 6-month period | 2.51% | 2.50% | +0.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.29% | 4.20% | +0.09% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.91% | 5.92% | -0.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.54% | 277.46% | -271.92% |