BCTX vs RNR: Correlation
Measured on weekly returns over the past three years, BriaCell Therapeutics Corp. (BCTX) and RenaissanceRe Holdings Ltd. (RNR) carry a correlation of -0.25, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCTX and RNR?
On 3 years of weekly data the BCTX/RNR correlation comes out at -0.25, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.03) than the 3-year average (-0.25). The 5-year figure is -0.14, and annualized covariance runs at -3545.9 %².
Within BCTX's tracked universe of 31 assets, RNR comes in at #23 by 3-year correlation. The last year tells two different stories: RNR led by 87.0 percentage points, -51.2% for BCTX against +35.8% for RNR. One caveat on sizing: BCTX is 32.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
BCTX vs RNR: side by side
| BCTX (BriaCell Therapeutics Corp.) | RNR (RenaissanceRe Holdings Ltd.) | |
|---|---|---|
| 1-year return | -51.2% | +35.8% |
| 5-year return | -94.5% | +120.0% |
| Volatility (ann.) | 676.8% | 21.1% |
| Beta vs S&P 500 | -1.17 | 0.09 |
| Max drawdown (3Y) | -96.3% | -23.1% |
| Market cap | – | $13.7B |
| P/E (trailing) | – | 5.7 |
| Dividend yield | 0.00% | 0.49% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BCTX | RNR |
|---|---|---|
| 2022 | -47.2% | +9.9% |
| 2023 | +33.9% | +7.2% |
| 2024 | -90.4% | +27.8% |
| 2025 | +27.0% | +13.6% |
| 2026 | -47.8% | +17.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCTX and RNR good diversifiers for each other?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BCTX and RNR?
Using weekly returns as of 2026-08-27: -0.25 over 3 years, with 0.03 over the last year and -0.14 over 5 years.
Is RNR a good diversifier for BCTX?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.25 mean?
On the −1 to +1 scale, -0.25 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/bctx-vs-rnr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bctx-vs-rnr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BCTX correlations · RNR correlations
