FSS vs FTDR: Correlation
How closely do Federal Signal Corporation (FSS) and Frontdoor, Inc. (FTDR) trade together? Their weekly returns over three years give a correlation of 0.48, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FSS and FTDR?
On 3 years of weekly data the FSS/FTDR correlation comes out at 0.48, moderate. The relationship has been stable: the 1-year correlation (0.40) sits close to the 3-year figure. The 5-year figure is 0.41, and annualized covariance runs at 660.2 %².
Within FSS's tracked universe of 15 assets, FTDR comes in at #8 by 3-year correlation. Correlation aside, the last 12 months split them widely, with FTDR ahead by 38.9 points (-5.3% versus +33.6%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
FSS vs FTDR: side by side
| FSS (Federal Signal Corporation) | FTDR (Frontdoor, Inc.) | |
|---|---|---|
| 1-year return | -5.3% | +33.6% |
| 5-year return | +203.9% | +91.0% |
| Volatility (ann.) | 31.2% | 43.8% |
| Beta vs S&P 500 | 1.02 | 1.31 |
| Max drawdown (3Y) | -31.5% | -40.6% |
| Market cap | $7.3B | $5.7B |
| P/E (trailing) | 26.2 | 21.9 |
| Dividend yield | 0.48% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FSS | FTDR |
|---|---|---|
| 2022 | +8.2% | -43.2% |
| 2023 | +66.3% | +69.3% |
| 2024 | +21.1% | +55.2% |
| 2025 | +18.2% | +5.5% |
| 2026 | +11.3% | +43.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FSS and FTDR good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between FSS and FTDR?
As of 2026-08-27, the correlation of weekly returns between FSS and FTDR is 0.48 over 3 years, 0.40 over 1 year and 0.41 over 5 years.
Is FTDR a good diversifier for FSS?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: FSS correlations · FTDR correlations
