ELFTX vs. SSFEX
Compare and contrast key facts about Elfun Tax Exempt Income Fund (ELFTX) and State Street Aggregate Bond Index Fund Class K (SSFEX).
ELFTX is managed by State Street. It was launched on Jan 1, 1980. SSFEX is managed by State Street.
Performance
ELFTX vs. SSFEX - Performance Comparison
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ELFTX vs. SSFEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ELFTX Elfun Tax Exempt Income Fund | -0.77% | 3.29% | -0.14% | 4.27% | -8.97% | 0.87% | 4.50% | 7.13% | 0.91% | 4.72% |
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% |
Returns By Period
In the year-to-date period, ELFTX achieves a -0.77% return, which is significantly lower than SSFEX's -0.17% return. Over the past 10 years, ELFTX has outperformed SSFEX with an annualized return of 1.37%, while SSFEX has yielded a comparatively lower -19.27% annualized return.
ELFTX
- 1D
- 0.21%
- 1M
- -2.59%
- YTD
- -0.77%
- 6M
- 0.94%
- 1Y
- 3.35%
- 3Y*
- 1.40%
- 5Y*
- -0.22%
- 10Y*
- 1.37%
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%
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ELFTX vs. SSFEX - Expense Ratio Comparison
ELFTX has a 0.21% expense ratio, which is higher than SSFEX'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%.
Return for Risk
ELFTX vs. SSFEX — Risk / Return Rank
ELFTX
SSFEX
ELFTX vs. SSFEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Elfun Tax Exempt Income Fund (ELFTX) and State Street Aggregate Bond Index Fund Class K (SSFEX). 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.
| ELFTX | SSFEX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.79 | 1.04 | -0.25 |
Sortino ratioReturn per unit of downside risk | 1.08 | 1.49 | -0.42 |
Omega ratioGain probability vs. loss probability | 1.22 | 1.18 | +0.04 |
Calmar ratioReturn relative to maximum drawdown | 0.85 | 1.96 | -1.11 |
Martin ratioReturn relative to average drawdown | 2.58 | 5.43 | -2.85 |
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
| ELFTX | SSFEX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.79 | 1.04 | -0.25 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.06 | 0.03 | -0.08 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.36 | -0.61 | +0.97 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.71 | -0.56 | +1.26 |
Correlation
The correlation between ELFTX and SSFEX is 0.51, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
ELFTX vs. SSFEX - Dividend Comparison
ELFTX's dividend yield for the trailing twelve months is around 3.70%, less than SSFEX's 4.04% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ELFTX Elfun Tax Exempt Income Fund | 3.70% | 3.99% | 2.66% | 2.88% | 3.09% | 2.61% | 3.24% | 3.78% | 4.09% | 4.00% | 4.00% | 3.82% |
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% |
Drawdowns
ELFTX vs. SSFEX - Drawdown Comparison
The maximum ELFTX drawdown since its inception was -19.15%, smaller than the maximum SSFEX drawdown of -92.70%. Use the drawdown chart below to compare losses from any high point for ELFTX and SSFEX.
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Drawdown Indicators
| ELFTX | SSFEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.15% | -92.70% | +73.55% |
Max Drawdown (1Y)Largest decline over 1 year | -5.23% | -2.52% | -2.71% |
Max Drawdown (5Y)Largest decline over 5 years | -13.59% | -17.99% | +4.40% |
Max Drawdown (10Y)Largest decline over 10 years | -13.59% | -92.70% | +79.11% |
Current DrawdownCurrent decline from peak | -3.44% | -90.11% | +86.67% |
Average DrawdownAverage peak-to-trough decline | -3.42% | -47.36% | +43.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.73% | 0.91% | +0.82% |
Volatility
ELFTX vs. SSFEX - Volatility Comparison
The current volatility for Elfun Tax Exempt Income Fund (ELFTX) is 1.04%, while State Street Aggregate Bond Index Fund Class K (SSFEX) has a volatility of 1.61%. This indicates that ELFTX experiences smaller price fluctuations and is considered to be less risky than SSFEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ELFTX | SSFEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.04% | 1.61% | -0.57% |
Volatility (6M)Calculated over the trailing 6-month period | 1.66% | 2.50% | -0.84% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.12% | 4.20% | +0.92% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.86% | 5.91% | -2.05% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.84% | 31.83% | -27.99% |