BIO vs RGEN: Correlation
Measured on weekly returns over the past three years, Bio-Rad Laboratories, Inc. (BIO) and Repligen Corporation (RGEN) carry a correlation of 0.60, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BIO and RGEN?
On 3 years of weekly data the BIO/RGEN correlation comes out at 0.60, strong. Recent behaviour matches the longer record: 0.65 over 1 year against 0.60 over 3. The 5-year figure is 0.61, and annualized covariance runs at 1139.3 %².
Among the 13 assets we track against BIO, RGEN ranks #5 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months RGEN outperformed by 19.9 percentage points (+33.2% for BIO against +53.1% for RGEN).
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.
BIO vs RGEN: side by side
| BIO (Bio-Rad Laboratories, Inc.) | RGEN (Repligen Corporation) | |
|---|---|---|
| 1-year return | +33.2% | +53.1% |
| 5-year return | -52.1% | -35.6% |
| Volatility (ann.) | 38.4% | 49.5% |
| Beta vs S&P 500 | 0.85 | 1.35 |
| Max drawdown (3Y) | -45.9% | -50.6% |
| Market cap | $10.4B | $10.3B |
| P/E (trailing) | 47.4 | 252.8 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BIO | RGEN |
|---|---|---|
| 2022 | -44.3% | -36.1% |
| 2023 | -23.2% | +6.2% |
| 2024 | +1.7% | -19.9% |
| 2025 | -7.8% | +13.8% |
| 2026 | +28.7% | +11.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BIO and RGEN good diversifiers for each other?
Only partially. A correlation of 0.60 means BIO and RGEN 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 BIO and RGEN?
As of 2026-08-27, the correlation of weekly returns between BIO and RGEN is 0.60 over 3 years, 0.65 over 1 year and 0.61 over 5 years.
Is RGEN a good diversifier for BIO?
Only partially. A correlation of 0.60 means BIO and RGEN share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.60 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/bio-vs-rgen.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bio-vs-rgen/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BIO correlations · RGEN correlations
