FSS vs. VOO
FSS (Federal Signal Corporation) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, FSS returned 26.19%/yr vs 15.77%/yr for VOO. A 0.56 correlation means they provide meaningful diversification when combined.
Performance
FSS vs. VOO - Performance Comparison
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Returns By Period
In the year-to-date period, FSS achieves a 8.44% return, which is significantly lower than VOO's 9.75% return. Over the past 10 years, FSS has outperformed VOO with an annualized return of 26.19%, while VOO has yielded a comparatively lower 15.77% annualized return.
FSS
- 1D
- -0.91%
- 1M
- 4.29%
- YTD
- 8.44%
- 6M
- 4.00%
- 1Y
- 16.83%
- 3Y*
- 24.44%
- 5Y*
- 24.98%
- 10Y*
- 26.19%
VOO
- 1D
- -0.29%
- 1M
- 0.08%
- YTD
- 9.75%
- 6M
- 9.30%
- 1Y
- 26.77%
- 3Y*
- 21.36%
- 5Y*
- 13.58%
- 10Y*
- 15.77%
FSS vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FSS Federal Signal Corporation | 8.44% | 18.21% | 21.05% | 66.26% | 8.22% | 31.80% | 3.99% | 63.92% | 0.39% | 30.79% |
VOO Vanguard S&P 500 ETF | 9.75% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Correlation
The correlation between FSS and VOO is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.49 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.55 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.56 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.54 |
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010 | 0.56 |
The correlation between FSS and VOO has been stable across timeframes, ranging from 0.49 to 0.56 - a consistent structural relationship.
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Return for Risk
FSS vs. VOO — Risk / Return Rank
FSS
VOO
FSS vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Federal Signal Corporation (FSS) 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.
| FSS | VOO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.70 | ||
| Sortino ratioReturn per unit of downside risk | -1.94 | ||
| Omega ratioGain probability vs. loss probability | 1.12 | 1.39 | -0.27 |
| Calmar ratioReturn relative to maximum drawdown | 0.89 | 3.02 | -2.13 |
| Martin ratioReturn relative to average drawdown | 1.54 | 13.58 | -12.04 |
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Drawdowns
FSS vs. VOO - Drawdown Comparison
The maximum FSS drawdown since its inception was -83.43%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for FSS and VOO.
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Drawdown Indicators
| FSS | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -83.43% | -33.99% | -49.44% |
Max Drawdown (1Y)Largest decline over 1 year | -19.04% | -8.90% | -10.14% |
Max Drawdown (3Y)Largest decline over 3 years | -31.54% | -18.69% | -12.85% |
Max Drawdown (5Y)Largest decline over 5 years | -32.96% | -24.52% | -8.44% |
Max Drawdown (10Y)Largest decline over 10 years | -32.96% | -33.99% | +1.03% |
Current DrawdownCurrent decline from peak | -9.13% | -1.74% | -7.39% |
Average DrawdownAverage peak-to-trough decline | -22.56% | -3.68% | -18.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 10.96% | 1.98% | +8.98% |
Volatility
FSS vs. VOO - Volatility Comparison
Federal Signal Corporation (FSS) has a higher volatility of 9.95% compared to Vanguard S&P 500 ETF (VOO) at 4.60%. This indicates that FSS's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FSS | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.95% | 4.60% | +5.35% |
Volatility (6M)Calculated over the trailing 6-month period | 23.76% | 9.73% | +14.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 35.67% | 12.39% | +23.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 30.75% | 16.90% | +13.85% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 31.67% | 18.05% | +13.62% |
Dividends
FSS vs. VOO - Dividend Comparison
FSS's dividend yield for the trailing twelve months is around 0.49%, less than VOO's 1.04% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FSS Federal Signal Corporation | 0.49% | 0.52% | 0.52% | 0.51% | 0.77% | 0.83% | 0.96% | 0.99% | 1.56% | 1.39% | 1.79% | 1.58% |
VOO Vanguard S&P 500 ETF | 1.04% | 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
FSS and VOO have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FSS has higher volatility (9.95%) compared to VOO (4.60%). In terms of maximum drawdown, FSS dropped -83.43% vs VOO's -33.99%.
VOO currently has the higher Sharpe Ratio (2.17 vs 0.47), 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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