CMC vs RS: Correlation
How closely do Commercial Metals Company (CMC) and Reliance, Inc. (RS) trade together? Their weekly returns over three years give a correlation of 0.75, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CMC and RS?
On 3 years of weekly data the CMC/RS correlation comes out at 0.75, strong. Little has changed lately, as the 1-year reading of 0.72 lands near the 3-year figure. The 5-year figure is 0.73, and annualized covariance runs at 632.6 %².
Few assets follow CMC as closely as RS, which ranks #1 of 19 tracked partners. Over the last 12 months RS came out ahead by 12.7 percentage points (+22.0% against +34.7%).
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.
CMC vs RS: side by side
| CMC (Commercial Metals Company) | RS (Reliance, Inc.) | |
|---|---|---|
| 1-year return | +22.0% | +34.7% |
| 5-year return | +119.5% | +177.9% |
| Volatility (ann.) | 33.3% | 25.5% |
| Beta vs S&P 500 | 1.26 | 0.77 |
| Max drawdown (3Y) | -37.6% | -22.3% |
| Market cap | – | $20.0B |
| P/E (trailing) | 12.9 | 22.8 |
| Dividend yield | 1.08% | 1.25% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CMC | RS |
|---|---|---|
| 2022 | +35.0% | +27.1% |
| 2023 | +5.0% | +40.3% |
| 2024 | +0.4% | -2.3% |
| 2025 | +41.5% | +9.1% |
| 2026 | +0.2% | +37.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMC and RS good diversifiers for each other?
Somewhat, no more. With 0.75 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between CMC and RS?
As of 2026-08-27, the correlation of weekly returns between CMC and RS is 0.75 over 3 years, 0.72 over 1 year and 0.73 over 5 years.
Is RS a good diversifier for CMC?
Somewhat, no more. With 0.75 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.75 mean?
A reading of 0.75 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cmc-vs-rs.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cmc-vs-rs/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CMC correlations · RS correlations
