FSS vs TRS: Correlation
How closely do Federal Signal Corporation (FSS) and TriMas Corporation (TRS) trade together? Their weekly returns over three years give a correlation of 0.52, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FSS and TRS?
Over the past 3 years, FSS and TRS moved with a correlation of 0.52, which is moderate. Recent behaviour matches the longer record: 0.48 over 1 year against 0.52 over 3. Over 5 years the correlation is 0.53, and the annualized covariance of weekly returns is 543.0 %².
Among the 15 assets we track against FSS, TRS ranks #7 by 3-year correlation. Over the last 12 months TRS came out ahead by 8.1 percentage points (-5.3% against +2.8%).
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 TRS: side by side
| FSS (Federal Signal Corporation) | TRS (TriMas Corporation) | |
|---|---|---|
| 1-year return | -5.3% | +2.8% |
| 5-year return | +203.9% | +25.8% |
| Volatility (ann.) | 31.2% | 33.3% |
| Beta vs S&P 500 | 1.02 | 0.76 |
| Max drawdown (3Y) | -31.5% | -29.5% |
| Market cap | $7.3B | $1.4B |
| P/E (trailing) | 26.2 | 19.2 |
| Dividend yield | 0.48% | 0.40% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FSS | TRS |
|---|---|---|
| 2022 | +8.2% | -24.6% |
| 2023 | +66.3% | -8.1% |
| 2024 | +21.1% | -2.3% |
| 2025 | +18.2% | +45.0% |
| 2026 | +11.3% | +12.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FSS and TRS good diversifiers for each other?
To a limited degree. At 0.52 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between FSS and TRS?
Using weekly returns as of 2026-08-27: 0.52 over 3 years, with 0.48 over the last year and 0.53 over 5 years.
Is TRS a good diversifier for FSS?
To a limited degree. At 0.52 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.52 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/fss-vs-trs.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fss-vs-trs/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FSS correlations · TRS correlations
