CRL vs TECH: Correlation
How closely do Charles River Laboratories (CRL) and Bio-Techne (TECH) trade together? Their weekly returns over three years give a correlation of 0.61, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CRL and TECH?
Across a 3-year window, the weekly returns of CRL and TECH correlate at 0.61, strong. Little has changed lately, as the 1-year reading of 0.68 lands near the 3-year figure. Stretching to 5 years gives 0.64, with an annualized covariance of 1223.4 %².
Few assets follow CRL as closely as TECH, which ranks #2 of 33 tracked partners. Correlation aside, the last 12 months split them widely, with CRL ahead by 52.5 points (+82.1% versus +29.6%). On a rolling one-year basis the correlation drifted between 0.43 and 0.75, a moderate band.
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.
CRL vs TECH: side by side
| CRL (Charles River Laboratories) | TECH (Bio-Techne) | |
|---|---|---|
| 1-year return | +82.1% | +29.6% |
| 5-year return | -33.3% | -41.4% |
| Volatility (ann.) | 47.9% | 41.9% |
| Beta vs S&P 500 | 0.92 | 0.90 |
| Max drawdown (3Y) | -63.5% | -48.1% |
| Market cap | $14.3B | $11.4B |
| P/E (trailing) | – | 62.5 |
| Dividend yield | 0.00% | 0.44% |
| Sector / category | Health Care | Health Care |
Year-by-year returns
| Year | CRL | TECH |
|---|---|---|
| 2022 | -42.2% | -35.7% |
| 2023 | +8.5% | -6.5% |
| 2024 | -21.9% | -6.2% |
| 2025 | +8.1% | -17.9% |
| 2026 | +48.6% | +23.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CRL and TECH good diversifiers for each other?
Only partially. A correlation of 0.61 means CRL and TECH share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between CRL and TECH?
As of 2026-08-27, the correlation of weekly returns between CRL and TECH is 0.61 over 3 years, 0.68 over 1 year and 0.64 over 5 years.
Is TECH a good diversifier for CRL?
Only partially. A correlation of 0.61 means CRL and TECH share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.61 mean?
A reading of 0.61 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/crl-vs-tech.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/crl-vs-tech/)
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Related comparisons
Hubs: CRL correlations · TECH correlations
