BCTX vs IRWD: Correlation
BriaCell Therapeutics Corp. (BCTX) and Ironwood Pharmaceuticals, Inc. (IRWD) show a negative relationship: their 3-year correlation of weekly returns is -0.22.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCTX and IRWD?
On 3 years of weekly data the BCTX/IRWD correlation comes out at -0.22, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.00) than the 3-year average (-0.22). The 5-year figure is -0.22, and annualized covariance runs at -13399.7 %².
Within BCTX's tracked universe of 31 assets, IRWD comes in at #17 by 3-year correlation. The last year tells two different stories: IRWD led by 287.7 percentage points, -51.2% for BCTX against +236.5% for IRWD. Risk is not evenly split, since BCTX carries 7.7 times the volatility of the other side.
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 IRWD: side by side
| BCTX (BriaCell Therapeutics Corp.) | IRWD (Ironwood Pharmaceuticals, Inc.) | |
|---|---|---|
| 1-year return | -51.2% | +236.5% |
| 5-year return | -94.5% | -68.1% |
| Volatility (ann.) | 676.8% | 88.3% |
| Beta vs S&P 500 | -1.17 | 0.81 |
| Max drawdown (3Y) | -96.3% | -96.3% |
| Market cap | – | $0.7B |
| P/E (trailing) | – | 5.4 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BCTX | IRWD |
|---|---|---|
| 2022 | -47.2% | +6.3% |
| 2023 | +33.9% | -7.7% |
| 2024 | -90.4% | -61.3% |
| 2025 | +27.0% | -23.9% |
| 2026 | -47.8% | +25.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCTX and IRWD good diversifiers for each other?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BCTX and IRWD?
Using weekly returns as of 2026-08-27: -0.22 over 3 years, with 0.00 over the last year and -0.22 over 5 years.
Is IRWD a good diversifier for BCTX?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.22 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/bctx-vs-irwd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bctx-vs-irwd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BCTX correlations · IRWD correlations
