FZFLX vs. FXAIX
Compare and contrast key facts about Fidelity SAI Small-Mid Cap 500 Index Fund (FZFLX) and Fidelity 500 Index Fund (FXAIX).
FZFLX is managed by Fidelity. It was launched on Aug 12, 2015. FXAIX is a passively managed fund by Fidelity that tracks the performance of the S&P 500 Index. It was launched on Feb 17, 1988.
Performance
FZFLX vs. FXAIX - Performance Comparison
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FZFLX vs. FXAIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FZFLX Fidelity SAI Small-Mid Cap 500 Index Fund | 7.81% | 10.76% | 15.52% | 17.75% | -15.62% | 20.40% | 19.78% | 31.96% | -9.25% | 18.41% |
FXAIX Fidelity 500 Index Fund | -4.34% | 17.84% | 25.01% | 26.29% | -18.14% | 28.71% | 18.42% | 31.48% | -4.43% | 21.82% |
Returns By Period
In the year-to-date period, FZFLX achieves a 7.81% return, which is significantly higher than FXAIX's -4.34% return. Over the past 10 years, FZFLX has underperformed FXAIX with an annualized return of 12.08%, while FXAIX has yielded a comparatively higher 14.08% annualized return.
FZFLX
- 1D
- 5.00%
- 1M
- -6.21%
- YTD
- 7.81%
- 6M
- 9.60%
- 1Y
- 26.35%
- 3Y*
- 16.05%
- 5Y*
- 8.15%
- 10Y*
- 12.08%
FXAIX
- 1D
- 2.92%
- 1M
- -5.02%
- YTD
- -4.34%
- 6M
- -2.14%
- 1Y
- 17.32%
- 3Y*
- 18.30%
- 5Y*
- 11.79%
- 10Y*
- 14.08%
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FZFLX vs. FXAIX - Expense Ratio Comparison
FZFLX has a 0.05% expense ratio, which is higher than FXAIX'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
FZFLX vs. FXAIX — Risk / Return Rank
FZFLX
FXAIX
FZFLX vs. FXAIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity SAI Small-Mid Cap 500 Index Fund (FZFLX) and Fidelity 500 Index Fund (FXAIX). 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.
| FZFLX | FXAIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.13 | 0.97 | +0.15 |
Sortino ratioReturn per unit of downside risk | 1.66 | 1.49 | +0.17 |
Omega ratioGain probability vs. loss probability | 1.23 | 1.23 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.73 | 1.52 | +0.21 |
Martin ratioReturn relative to average drawdown | 7.43 | 7.30 | +0.14 |
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
| FZFLX | FXAIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.13 | 0.97 | +0.15 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.40 | 0.70 | -0.31 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.58 | 0.78 | -0.20 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.54 | 0.76 | -0.23 |
Correlation
The correlation between FZFLX and FXAIX is 0.87, 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
FZFLX vs. FXAIX - Dividend Comparison
FZFLX's dividend yield for the trailing twelve months is around 53.58%, more than FXAIX's 1.16% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FZFLX Fidelity SAI Small-Mid Cap 500 Index Fund | 53.58% | 57.77% | 10.20% | 2.35% | 79.79% | 50.77% | 7.19% | 6.49% | 7.69% | 1.68% | 0.93% | 0.67% |
FXAIX Fidelity 500 Index Fund | 1.16% | 1.11% | 1.25% | 1.45% | 1.69% | 1.22% | 1.60% | 2.06% | 2.72% | 1.97% | 2.52% | 2.83% |
Drawdowns
FZFLX vs. FXAIX - Drawdown Comparison
The maximum FZFLX drawdown since its inception was -42.03%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for FZFLX and FXAIX.
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Drawdown Indicators
| FZFLX | FXAIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -42.03% | -33.79% | -8.24% |
Max Drawdown (1Y)Largest decline over 1 year | -14.54% | -12.13% | -2.41% |
Max Drawdown (5Y)Largest decline over 5 years | -24.77% | -24.50% | -0.27% |
Max Drawdown (10Y)Largest decline over 10 years | -42.03% | -33.79% | -8.24% |
Current DrawdownCurrent decline from peak | -6.21% | -6.23% | +0.02% |
Average DrawdownAverage peak-to-trough decline | -5.81% | -3.83% | -1.98% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.38% | 2.53% | +0.85% |
Volatility
FZFLX vs. FXAIX - Volatility Comparison
Fidelity SAI Small-Mid Cap 500 Index Fund (FZFLX) has a higher volatility of 11.32% compared to Fidelity 500 Index Fund (FXAIX) at 5.34%. This indicates that FZFLX's price experiences larger fluctuations and is considered to be riskier than FXAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FZFLX | FXAIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.32% | 5.34% | +5.98% |
Volatility (6M)Calculated over the trailing 6-month period | 16.31% | 9.53% | +6.78% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.32% | 18.32% | +6.00% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.78% | 16.92% | +3.86% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.91% | 18.05% | +2.86% |