FZROX vs. VOO
FZROX (Fidelity ZERO Total Market Index Fund) and VOO (Vanguard S&P 500 ETF) are both funds - FZROX is a Large Cap Blend Equities fund managed by Fidelity, while VOO is a S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, FZROX returned 11.92%/yr vs 13.30%/yr for VOO. With a 0.99 correlation, they move nearly in lockstep. FZROX charges 0.00%/yr vs 0.03%/yr for VOO.
Performance
FZROX vs. VOO - Performance Comparison
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Returns By Period
In the year-to-date period, FZROX achieves a 7.11% return, which is significantly lower than VOO's 8.49% return.
FZROX
- 1D
- -1.63%
- 1M
- -1.33%
- YTD
- 7.11%
- 6M
- 5.99%
- 1Y
- 22.32%
- 3Y*
- 20.46%
- 5Y*
- 11.92%
- 10Y*
- —
VOO
- 1D
- 1.68%
- 1M
- -0.06%
- YTD
- 8.49%
- 6M
- 7.67%
- 1Y
- 24.15%
- 3Y*
- 20.99%
- 5Y*
- 13.30%
- 10Y*
- 15.41%
FZROX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
FZROX Fidelity ZERO Total Market Index Fund | 7.11% | 17.23% | 23.94% | 26.20% | -19.21% | 26.00% | 20.51% | 31.15% | -12.72% |
VOO Vanguard S&P 500 ETF | 8.49% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -10.35% |
Correlation
The correlation between FZROX and VOO is 0.99 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.99 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.98 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.99 |
Correlation (All Time) Calculated using the full available price history since Aug 16, 2018 | 0.99 |
The correlation between FZROX and VOO has been stable across timeframes, ranging from 0.98 to 0.99 - a consistent structural relationship.
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Return for Risk
FZROX vs. VOO — Risk / Return Rank
FZROX
VOO
FZROX vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity ZERO Total Market Index Fund (FZROX) and Vanguard S&P 500 ETF (VOO). 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.
| FZROX | VOO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.23 | ||
| Sortino ratioReturn per unit of downside risk | -0.29 | ||
| Omega ratioGain probability vs. loss probability | 1.32 | 1.36 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 2.49 | 2.73 | -0.24 |
| Martin ratioReturn relative to average drawdown | 11.22 | 12.33 | -1.11 |
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Drawdowns
FZROX vs. VOO - Drawdown Comparison
The maximum FZROX drawdown since its inception was -34.96%, roughly equal to the maximum VOO drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for FZROX and VOO.
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Drawdown Indicators
| FZROX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.96% | -33.99% | -0.97% |
Max Drawdown (1Y)Largest decline over 1 year | -8.89% | -8.90% | +0.01% |
Max Drawdown (3Y)Largest decline over 3 years | -19.38% | -18.69% | -0.69% |
Max Drawdown (5Y)Largest decline over 5 years | -25.12% | -24.52% | -0.60% |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.99% | — |
Current DrawdownCurrent decline from peak | -4.38% | -2.87% | -1.51% |
Average DrawdownAverage peak-to-trough decline | -5.50% | -3.69% | -1.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.97% | 1.96% | +0.01% |
Volatility
FZROX vs. VOO - Volatility Comparison
Fidelity ZERO Total Market Index Fund (FZROX) and Vanguard S&P 500 ETF (VOO) have volatilities of 4.24% and 4.34%, 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
| FZROX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.24% | 4.34% | -0.10% |
Volatility (6M)Calculated over the trailing 6-month period | 9.81% | 9.58% | +0.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.64% | 12.27% | +0.37% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.50% | 16.88% | +0.62% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.13% | 18.03% | +2.10% |
FZROX vs. VOO - Expense Ratio Comparison
FZROX has a 0.00% expense ratio, which is lower than VOO's 0.03% 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
FZROX vs. VOO - Dividend Comparison
FZROX's dividend yield for the trailing twelve months is around 0.96%, less than VOO's 1.05% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FZROX Fidelity ZERO Total Market Index Fund | 0.96% | 1.02% | 1.16% | 1.36% | 1.57% | 1.25% | 1.27% | 1.51% | 0.00% | 0.00% | 0.00% | 0.00% |
VOO Vanguard S&P 500 ETF | 1.05% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Frequently Asked Questions
With a correlation of 0.99, FZROX and VOO 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.
VOO has higher volatility (4.34%) compared to FZROX (4.24%). In terms of maximum drawdown, FZROX dropped -34.96% vs VOO's -33.99%.
VOO currently has the higher Sharpe Ratio (1.98 vs 1.75), 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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