CTRM vs PYPD: Correlation
How closely do Castor Maritime Inc. (CTRM) and PolyPid Ltd. (PYPD) trade together? Their weekly returns over three years give a correlation of 0.37, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTRM and PYPD?
Across a 3-year window, the weekly returns of CTRM and PYPD correlate at 0.37, moderate. The past 12 months show a weaker link (0.09) than the 3-year average (0.37). Stretching to 5 years gives 0.32, with an annualized covariance of 1561.2 %².
Few assets follow CTRM as closely as PYPD, which ranks #2 of 12 tracked partners. Correlation aside, the last 12 months split them widely, with PYPD ahead by 37.6 points (+12.1% versus +49.7%). Risk is not evenly split, since PYPD carries 1.6 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.
CTRM vs PYPD: side by side
| CTRM (Castor Maritime Inc.) | PYPD (PolyPid Ltd.) | |
|---|---|---|
| 1-year return | +12.1% | +49.7% |
| 5-year return | -89.2% | -98.1% |
| Volatility (ann.) | 51.7% | 81.4% |
| Beta vs S&P 500 | 0.35 | 0.49 |
| Max drawdown (3Y) | -72.3% | -74.1% |
| Market cap | – | $0.1B |
| P/E (trailing) | 0.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CTRM | PYPD |
|---|---|---|
| 2022 | -21.1% | -87.8% |
| 2023 | -62.1% | -81.9% |
| 2024 | -35.3% | -20.0% |
| 2025 | -24.7% | +42.8% |
| 2026 | +15.9% | +18.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTRM and PYPD good diversifiers for each other?
Reasonably. At 0.37, CTRM and PYPD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CTRM and PYPD?
Using weekly returns as of 2026-08-27: 0.37 over 3 years, with 0.09 over the last year and 0.32 over 5 years.
Is PYPD a good diversifier for CTRM?
Reasonably. At 0.37, CTRM and PYPD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.37 mean?
A reading of 0.37 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/ctrm-vs-pypd.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ctrm-vs-pypd/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CTRM correlations · PYPD correlations
