FBRX vs PRFX: Correlation
Measured on weekly returns over the past three years, Forte Biosciences, Inc. (FBRX) and PRF Technologies Ltd. (PRFX) carry a correlation of 0.61, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FBRX and PRFX?
Over the past 3 years, FBRX and PRFX moved with a correlation of 0.61, which is strong. Lately the two have drifted apart, with the 1-year correlation at 0.09 versus 0.61 over 3 years. Over 5 years the correlation is 0.57, and the annualized covariance of weekly returns is 27759.8 %².
Few assets follow FBRX as closely as PRFX, which ranks #2 of 11 tracked partners. Correlation aside, the last 12 months split them widely, with FBRX ahead by 671.4 points (+583.7% versus -87.7%). Note the risk asymmetry: PRFX runs 1.9 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
FBRX vs PRFX: side by side
| FBRX (Forte Biosciences, Inc.) | PRFX (PRF Technologies Ltd.) | |
|---|---|---|
| 1-year return | +583.7% | -87.7% |
| 5-year return | -89.5% | -99.9% |
| Volatility (ann.) | 157.4% | 291.2% |
| Beta vs S&P 500 | 1.45 | 2.46 |
| Max drawdown (3Y) | -81.2% | -99.3% |
| Market cap | $1.6B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FBRX | PRFX |
|---|---|---|
| 2022 | -53.3% | -68.9% |
| 2023 | -17.8% | -33.4% |
| 2024 | +10.5% | -79.7% |
| 2025 | +20.1% | -80.9% |
| 2026 | +182.3% | -69.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FBRX and PRFX good diversifiers for each other?
To a limited degree. At 0.61 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between FBRX and PRFX?
The FBRX/PRFX correlation stands at 0.61 on a 3-year window (1 year: 0.09, 5 years: 0.57), computed from weekly returns as of 2026-08-27.
Is PRFX a good diversifier for FBRX?
To a limited degree. At 0.61 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.61 mean?
On the −1 to +1 scale, 0.61 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/fbrx-vs-prfx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/fbrx-vs-prfx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FBRX correlations · PRFX correlations
