PROF vs WPRT: Correlation
Profound Medical Corp. (PROF) and Westport Fuel Systems Inc (WPRT) show a moderate relationship: their 3-year correlation of weekly returns is 0.33.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PROF and WPRT?
Over the past 3 years, PROF and WPRT moved with a correlation of 0.33, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.15 versus 0.33 over 3 years. Over 5 years the correlation is 0.19, and the annualized covariance of weekly returns is 1012.4 %².
By 3-year correlation, WPRT places #5 of the 10 assets tracked against PROF. Correlation aside, the last 12 months split them widely, with PROF ahead by 89.5 points (+54.0% versus -35.5%).
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.
PROF vs WPRT: side by side
| PROF (Profound Medical Corp.) | WPRT (Westport Fuel Systems Inc) | |
|---|---|---|
| 1-year return | +54.0% | -35.5% |
| 5-year return | -53.1% | -95.2% |
| Volatility (ann.) | 59.6% | 51.7% |
| Beta vs S&P 500 | 0.92 | 1.44 |
| Max drawdown (3Y) | -65.4% | -80.0% |
| Market cap | $0.3B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PROF | WPRT |
|---|---|---|
| 2022 | -3.0% | -67.5% |
| 2023 | -22.0% | -14.0% |
| 2024 | -11.5% | -45.9% |
| 2025 | +4.8% | -56.1% |
| 2026 | -11.6% | +17.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PROF and WPRT good diversifiers for each other?
A fair diversifier. At 0.33, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between PROF and WPRT?
Using weekly returns as of 2026-08-27: 0.33 over 3 years, with 0.15 over the last year and 0.19 over 5 years.
Is WPRT a good diversifier for PROF?
A fair diversifier. At 0.33, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.33 mean?
A reading of 0.33 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/prof-vs-wprt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/prof-vs-wprt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: PROF correlations · WPRT correlations
