ATRC vs RUSHA: Correlation
How closely do AtriCure, Inc. (ATRC) and Rush Enterprises, Inc. (RUSHA) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ATRC and RUSHA?
Over the past 3 years, ATRC and RUSHA moved with a correlation of 0.42, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.28 versus 0.42 over 3 years. Over 5 years the correlation is 0.37, and the annualized covariance of weekly returns is 594.6 %².
Among the 10 assets we track against ATRC, RUSHA ranks #5 by 3-year correlation. Neither side won the trailing year by much: +32.1% against +31.8%.
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.
ATRC vs RUSHA: side by side
| ATRC (AtriCure, Inc.) | RUSHA (Rush Enterprises, Inc.) | |
|---|---|---|
| 1-year return | +32.1% | +31.8% |
| 5-year return | -33.3% | +177.5% |
| Volatility (ann.) | 45.4% | 31.3% |
| Beta vs S&P 500 | 0.97 | 0.93 |
| Max drawdown (3Y) | -57.3% | -26.8% |
| Market cap | $2.5B | $8.3B |
| P/E (trailing) | 224.0 | 23.2 |
| Dividend yield | 0.00% | 0.99% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ATRC | RUSHA |
|---|---|---|
| 2022 | -36.2% | -4.5% |
| 2023 | -19.6% | +46.7% |
| 2024 | -14.4% | +10.4% |
| 2025 | +29.5% | -0.2% |
| 2026 | +24.5% | +42.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ATRC and RUSHA good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ATRC and RUSHA?
The ATRC/RUSHA correlation stands at 0.42 on a 3-year window (1 year: 0.28, 5 years: 0.37), computed from weekly returns as of 2026-08-27.
Is RUSHA a good diversifier for ATRC?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 mean?
On the −1 to +1 scale, 0.42 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: ATRC correlations · RUSHA correlations
