SSFEX vs. TLT
Compare and contrast key facts about State Street Aggregate Bond Index Fund Class K (SSFEX) and iShares 20+ Year Treasury Bond ETF (TLT).
SSFEX is managed by State Street. TLT is a passively managed fund by iShares that tracks the performance of the ICE U.S. Treasury 20+ Year Bond Index. It was launched on Jul 22, 2002.
Performance
SSFEX vs. TLT - Performance Comparison
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SSFEX vs. TLT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SSFEX State Street Aggregate Bond Index Fund Class K | -0.17% | 6.80% | 1.35% | 5.61% | -13.19% | -1.78% | -89.22% | 9.45% | -0.10% | 3.30% |
TLT iShares 20+ Year Treasury Bond ETF | 0.17% | 4.25% | -8.05% | 2.77% | -31.23% | -4.60% | 18.15% | 14.12% | -1.61% | 9.18% |
Returns By Period
In the year-to-date period, SSFEX achieves a -0.17% return, which is significantly lower than TLT's 0.17% return. Over the past 10 years, SSFEX has underperformed TLT with an annualized return of -19.27%, while TLT has yielded a comparatively higher -1.38% annualized return.
SSFEX
- 1D
- 0.53%
- 1M
- -1.96%
- YTD
- -0.17%
- 6M
- 0.82%
- 1Y
- 4.12%
- 3Y*
- 3.42%
- 5Y*
- 0.17%
- 10Y*
- -19.27%
TLT
- 1D
- -0.10%
- 1M
- -4.23%
- YTD
- 0.17%
- 6M
- -0.87%
- 1Y
- -0.49%
- 3Y*
- -2.78%
- 5Y*
- -5.85%
- 10Y*
- -1.38%
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SSFEX vs. TLT - Expense Ratio Comparison
SSFEX has a 0.03% expense ratio, which is lower than TLT's 0.15% expense ratio. Despite the difference, 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
SSFEX vs. TLT — Risk / Return Rank
SSFEX
TLT
SSFEX vs. TLT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for State Street Aggregate Bond Index Fund Class K (SSFEX) and iShares 20+ Year Treasury Bond ETF (TLT). 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.
| SSFEX | TLT | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.04 | -0.04 | +1.08 |
Sortino ratioReturn per unit of downside risk | 1.49 | 0.02 | +1.47 |
Omega ratioGain probability vs. loss probability | 1.18 | 1.00 | +0.18 |
Calmar ratioReturn relative to maximum drawdown | 1.96 | 0.05 | +1.91 |
Martin ratioReturn relative to average drawdown | 5.43 | 0.11 | +5.32 |
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
| SSFEX | TLT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.04 | -0.04 | +1.08 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.03 | -0.37 | +0.40 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.61 | -0.09 | -0.51 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.56 | 0.26 | -0.82 |
Correlation
The correlation between SSFEX and TLT is 0.89, 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
SSFEX vs. TLT - Dividend Comparison
SSFEX's dividend yield for the trailing twelve months is around 4.04%, less than TLT's 4.49% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SSFEX State Street Aggregate Bond Index Fund Class K | 4.04% | 3.66% | 3.76% | 3.14% | 2.48% | 3.32% | 9.59% | 3.56% | 2.79% | 2.43% | 2.19% | 4.67% |
TLT iShares 20+ Year Treasury Bond ETF | 4.49% | 4.43% | 4.30% | 3.38% | 2.67% | 1.50% | 1.50% | 2.27% | 2.63% | 2.43% | 2.60% | 2.61% |
Drawdowns
SSFEX vs. TLT - Drawdown Comparison
The maximum SSFEX drawdown since its inception was -92.70%, which is greater than TLT's maximum drawdown of -48.35%. Use the drawdown chart below to compare losses from any high point for SSFEX and TLT.
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Drawdown Indicators
| SSFEX | TLT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -92.70% | -48.35% | -44.35% |
Max Drawdown (1Y)Largest decline over 1 year | -2.52% | -9.23% | +6.71% |
Max Drawdown (5Y)Largest decline over 5 years | -17.99% | -43.70% | +25.71% |
Max Drawdown (10Y)Largest decline over 10 years | -92.70% | -48.35% | -44.35% |
Current DrawdownCurrent decline from peak | -90.11% | -40.17% | -49.94% |
Average DrawdownAverage peak-to-trough decline | -47.36% | -13.62% | -33.74% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.91% | 4.38% | -3.47% |
Volatility
SSFEX vs. TLT - Volatility Comparison
The current volatility for State Street Aggregate Bond Index Fund Class K (SSFEX) is 1.61%, while iShares 20+ Year Treasury Bond ETF (TLT) has a volatility of 3.71%. This indicates that SSFEX experiences smaller price fluctuations and is considered to be less risky than TLT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SSFEX | TLT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.61% | 3.71% | -2.10% |
Volatility (6M)Calculated over the trailing 6-month period | 2.50% | 6.61% | -4.11% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.20% | 11.44% | -7.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.91% | 15.90% | -9.99% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 31.83% | 14.93% | +16.90% |