BITSX vs. FSUVX
BITSX (iShares Total U.S. Stock Market Index Fund) and FSUVX (Fidelity SAI U.S. Low Volatility Index Fund) are both Large Cap Blend Equities funds. Over the past 10 years, BITSX returned 15.11%/yr vs 11.21%/yr for FSUVX. Their correlation of 0.86 suggests significant overlap in exposure. BITSX charges 0.08%/yr vs 0.11%/yr for FSUVX.
Performance
BITSX vs. FSUVX - Performance Comparison
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Returns By Period
In the year-to-date period, BITSX achieves a 8.62% return, which is significantly higher than FSUVX's 3.77% return. Over the past 10 years, BITSX has outperformed FSUVX with an annualized return of 15.11%, while FSUVX has yielded a comparatively lower 11.21% annualized return.
BITSX
- 1D
- -1.32%
- 1M
- -0.85%
- YTD
- 8.62%
- 6M
- 7.17%
- 1Y
- 22.40%
- 3Y*
- 20.54%
- 5Y*
- 11.96%
- 10Y*
- 15.11%
FSUVX
- 1D
- 0.30%
- 1M
- -2.47%
- YTD
- 3.77%
- 6M
- 2.91%
- 1Y
- 9.99%
- 3Y*
- 13.54%
- 5Y*
- 9.12%
- 10Y*
- 11.21%
BITSX vs. FSUVX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BITSX iShares Total U.S. Stock Market Index Fund | 8.62% | 17.10% | 23.79% | 25.97% | -19.10% | 25.50% | 20.76% | 31.06% | -5.42% | 20.99% |
FSUVX Fidelity SAI U.S. Low Volatility Index Fund | 3.77% | 11.03% | 17.40% | 14.80% | -10.93% | 21.51% | 9.86% | 27.73% | 1.35% | 17.68% |
Correlation
The correlation between BITSX and FSUVX is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.73 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.80 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.85 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.86 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016 | 0.86 |
The correlation between BITSX and FSUVX shifts across timeframes, from 0.73 (1 year) to 0.86 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
BITSX vs. FSUVX — Risk / Return Rank
BITSX
FSUVX
BITSX vs. FSUVX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Total U.S. Stock Market Index Fund (BITSX) and Fidelity SAI U.S. Low Volatility Index Fund (FSUVX). 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.
| BITSX | FSUVX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.60 | ||
| Sortino ratioReturn per unit of downside risk | +0.74 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.22 | +0.11 |
| Calmar ratioReturn relative to maximum drawdown | 2.70 | 1.49 | +1.21 |
| Martin ratioReturn relative to average drawdown | 11.99 | 6.17 | +5.82 |
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Drawdowns
BITSX vs. FSUVX - Drawdown Comparison
The maximum BITSX drawdown since its inception was -34.97%, which is greater than FSUVX's maximum drawdown of -32.41%. Use the drawdown chart below to compare losses from any high point for BITSX and FSUVX.
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Drawdown Indicators
| BITSX | FSUVX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.97% | -32.41% | -2.56% |
Max Drawdown (1Y)Largest decline over 1 year | -8.87% | -7.28% | -1.59% |
Max Drawdown (3Y)Largest decline over 3 years | -19.29% | -11.55% | -7.74% |
Max Drawdown (5Y)Largest decline over 5 years | -25.00% | -19.48% | -5.52% |
Max Drawdown (10Y)Largest decline over 10 years | -34.97% | -32.41% | -2.56% |
Current DrawdownCurrent decline from peak | -2.77% | -2.47% | -0.30% |
Average DrawdownAverage peak-to-trough decline | -4.52% | -3.27% | -1.25% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.99% | 1.75% | +0.24% |
Volatility
BITSX vs. FSUVX - Volatility Comparison
iShares Total U.S. Stock Market Index Fund (BITSX) has a higher volatility of 4.88% compared to Fidelity SAI U.S. Low Volatility Index Fund (FSUVX) at 2.68%. This indicates that BITSX's price experiences larger fluctuations and is considered to be riskier than FSUVX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BITSX | FSUVX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.88% | 2.68% | +2.20% |
Volatility (6M)Calculated over the trailing 6-month period | 10.05% | 6.54% | +3.51% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.84% | 8.58% | +4.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.49% | 12.97% | +4.52% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.43% | 15.18% | +3.25% |
BITSX vs. FSUVX - Expense Ratio Comparison
BITSX has a 0.08% expense ratio, which is lower than FSUVX's 0.11% 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%.
Dividends
BITSX vs. FSUVX - Dividend Comparison
BITSX's dividend yield for the trailing twelve months is around 1.04%, less than FSUVX's 4.29% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BITSX iShares Total U.S. Stock Market Index Fund | 1.04% | 1.10% | 1.24% | 1.42% | 1.59% | 1.53% | 1.47% | 2.11% | 2.44% | 2.14% | 1.51% | 0.00% |
FSUVX Fidelity SAI U.S. Low Volatility Index Fund | 4.29% | 4.45% | 2.25% | 1.74% | 4.12% | 3.52% | 1.31% | 3.80% | 2.63% | 2.94% | 2.23% | 1.17% |
Frequently Asked Questions
BITSX and FSUVX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BITSX has higher volatility (4.88%) compared to FSUVX (2.68%). In terms of maximum drawdown, BITSX dropped -34.97% vs FSUVX's -32.41%.
BITSX currently has the higher Sharpe Ratio (1.87 vs 1.27), 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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