CRBU vs MCRB: Correlation
How closely do Caribou Biosciences, Inc. (CRBU) and Seres Therapeutics, Inc. (MCRB) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CRBU and MCRB?
Over the past 3 years, CRBU and MCRB moved with a correlation of 0.39, which is moderate. The past 12 months show a weaker link (0.23) than the 3-year average (0.39). Over 5 years the correlation is 0.33, and the annualized covariance of weekly returns is 3262.7 %².
By 3-year correlation, MCRB places #12 of the 17 assets tracked against CRBU. Correlation aside, the last 12 months split them widely, with CRBU ahead by 57.6 points (-16.2% versus -73.8%).
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.
CRBU vs MCRB: side by side
| CRBU (Caribou Biosciences, Inc.) | MCRB (Seres Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | -16.2% | -73.8% |
| 5-year return | -93.2% | -96.0% |
| Volatility (ann.) | 80.5% | 103.2% |
| Beta vs S&P 500 | 2.52 | 1.38 |
| Max drawdown (3Y) | -91.1% | -94.0% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CRBU | MCRB |
|---|---|---|
| 2022 | -58.4% | -32.8% |
| 2023 | -8.8% | -75.0% |
| 2024 | -72.3% | -40.6% |
| 2025 | +0.0% | -10.5% |
| 2026 | +4.4% | -66.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CRBU and MCRB good diversifiers for each other?
Reasonably. At 0.39, CRBU and MCRB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CRBU and MCRB?
Using weekly returns as of 2026-08-27: 0.39 over 3 years, with 0.23 over the last year and 0.33 over 5 years.
Is MCRB a good diversifier for CRBU?
Reasonably. At 0.39, CRBU and MCRB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 mean?
On the −1 to +1 scale, 0.39 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/crbu-vs-mcrb.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/crbu-vs-mcrb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CRBU correlations · MCRB correlations
