SSFDX vs. BND
SSFDX (State Street Aggregate Bond Index Fund) and BND (Vanguard Total Bond Market ETF) are both funds - SSFDX is a Intermediate Core Bond fund managed by State Street, while BND is a Total Bond Market fund tracking the Bloomberg U.S. Aggregate Float Adjusted Index. Over the past 10 years, SSFDX returned 1.24%/yr vs 1.36%/yr for BND. Their correlation of 0.94 means they have usually moved in the same direction. SSFDX charges 0.23%/yr vs 0.03%/yr for BND.
Performance
SSFDX vs. BND - Performance Comparison
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Returns By Period
In the year-to-date period, SSFDX achieves a -0.34% return, which is significantly higher than BND's -0.54% return. Over the past 10 years, SSFDX has underperformed BND with an annualized return of 1.24%, while BND has yielded a comparatively higher 1.36% annualized return.
SSFDX
- 1D
- 0.06%
- 1M
- -0.87%
- 6M
- -0.53%
- YTD
- -0.34%
- 1Y
- 2.14%
- 3Y*
- 3.65%
- 5Y*
- -0.54%
- 10Y*
- 1.24%
- ALL TIME*
- 1.72%
BND
- 1D
- -0.26%
- 1M
- -1.20%
- 6M
- -0.75%
- YTD
- -0.54%
- 1Y
- 1.75%
- 3Y*
- 3.92%
- 5Y*
- -0.42%
- 10Y*
- 1.36%
- ALL TIME*
- 2.99%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $451.00M | $507.49M | $592.68M | |
| $0.00 | $0.00 | $0.00 |
SSFDX vs. BND - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SSFDX State Street Aggregate Bond Index Fund | -0.34% | 6.80% | 1.36% | 5.39% | -13.36% | -1.98% | 7.57% | 8.98% | -0.20% | 3.29% |
BND Vanguard Total Bond Market ETF | -0.54% | 7.08% | 1.38% | 5.65% | -13.11% | -1.86% | 7.71% | 8.84% | -0.12% | 3.57% |
Correlation
The correlation between SSFDX and BND is 0.98 - they have historically moved very closely together. At this level, their price movements offset little of one another.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.98 |
Correlation (3Y) Balances recent behavior with more history. | 0.98 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.98 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.95 |
Correlation (All Time) Calculated using the full available price history since Sep 22, 2014 | 0.94 |
The correlation between SSFDX and BND has been stable across timeframes, ranging from 0.94 to 0.98 - a consistent structural relationship.
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Return for Risk
SSFDX vs. BND — Risk / Return Rank
SSFDX
BND
SSFDX vs. BND - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for State Street Aggregate Bond Index Fund (SSFDX) and Vanguard Total Bond Market ETF (BND). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| SSFDX | BND | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.11 | ||
| Sortino ratioReturn per unit of downside risk | +0.16 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.12 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 1.10 | 0.99 | +0.11 |
| Martin ratioReturn relative to average drawdown | 2.76 | 2.48 | +0.29 |
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Drawdowns
SSFDX vs. BND - Drawdown Comparison
The maximum SSFDX drawdown since its inception was -26.93%, which is greater than BND's maximum drawdown of -18.58%. Use the drawdown chart below to compare losses from any high point for SSFDX and BND.
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Drawdown Indicators
| SSFDX | BND | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -26.93% | -18.58% | -8.35% |
Max Drawdown (1Y)Largest decline over 1 year | -2.75% | -2.68% | -0.07% |
Max Drawdown (3Y)Largest decline over 3 years | -5.00% | -4.81% | -0.19% |
Max Drawdown (5Y)Largest decline over 5 years | -18.18% | -17.91% | -0.27% |
Max Drawdown (10Y)Largest decline over 10 years | -26.93% | -18.58% | -8.35% |
Current DrawdownCurrent decline from peak | -3.98% | -3.15% | -0.83% |
Average DrawdownAverage peak-to-trough decline | -4.65% | -3.06% | -1.59% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.09% | 1.07% | +0.02% |
Volatility
SSFDX vs. BND - Volatility Comparison
State Street Aggregate Bond Index Fund (SSFDX) and Vanguard Total Bond Market ETF (BND) have volatilities of 0.97% and 0.98%, 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
| SSFDX | BND | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.97% | 0.98% | -0.01% |
Volatility (6M)Calculated over the trailing 6-month period | 2.87% | 2.90% | -0.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.67% | 3.70% | -0.03% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.93% | 6.03% | -0.10% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 14.11% | 5.53% | +8.58% |
SSFDX vs. BND - Expense Ratio Comparison
SSFDX has a 0.23% expense ratio, which is higher than BND's 0.03% 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%.
Dividends
SSFDX vs. BND - Dividend Comparison
SSFDX's dividend yield for the trailing twelve months is around 4.15%, more than BND's 4.03% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BND Vanguard Total Bond Market ETF | 3.69% | 3.86% | 3.67% | 3.09% | 2.60% | 2.12% | 2.38% | 2.72% | 2.81% | 2.54% | 2.51% | 2.57% |
SSFDX State Street Aggregate Bond Index Fund | 4.15% | 3.64% | 3.59% | 2.95% | 2.27% | 3.12% | 3.00% | 3.15% | 2.79% | 2.43% | 2.19% | 4.63% |
Frequently Asked Questions
With a correlation of 0.98, SSFDX and BND move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
BND has higher volatility (0.98%) compared to SSFDX (0.97%). In terms of maximum drawdown, SSFDX dropped -26.93% vs BND's -18.58%.
SSFDX currently has the higher Sharpe Ratio (0.82 vs 0.72), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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