CTRM vs ZIM: Correlation
Castor Maritime Inc. (CTRM) and ZIM Integrated Shipping Services Ltd. (ZIM) show a moderate relationship: their 3-year correlation of weekly returns is 0.42.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTRM and ZIM?
On 3 years of weekly data the CTRM/ZIM correlation comes out at 0.42, moderate. The relationship has been stable: the 1-year correlation (0.33) sits close to the 3-year figure. The 5-year figure is 0.33, and annualized covariance runs at 1593.1 %².
ZIM is one of the assets that tracks CTRM most closely: it ranks #1 out of the 12 assets we track against CTRM. The last year tells two different stories: ZIM led by 91.0 percentage points, +12.1% for CTRM against +103.1% for ZIM.
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 ZIM: side by side
| CTRM (Castor Maritime Inc.) | ZIM (ZIM Integrated Shipping Services Ltd.) | |
|---|---|---|
| 1-year return | +12.1% | +103.1% |
| 5-year return | -89.2% | +125.1% |
| Volatility (ann.) | 51.7% | 73.9% |
| Beta vs S&P 500 | 0.35 | 1.32 |
| Max drawdown (3Y) | -72.3% | -46.2% |
| Market cap | – | $3.4B |
| P/E (trailing) | 0.7 | 24.1 |
| Dividend yield | 0.00% | 4.31% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CTRM | ZIM |
|---|---|---|
| 2022 | -21.1% | -52.7% |
| 2023 | -62.1% | -21.1% |
| 2024 | -35.3% | +176.9% |
| 2025 | -24.7% | +25.6% |
| 2026 | +15.9% | +35.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTRM and ZIM good diversifiers for each other?
A fair diversifier. At 0.42, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CTRM and ZIM?
The CTRM/ZIM correlation stands at 0.42 on a 3-year window (1 year: 0.33, 5 years: 0.33), computed from weekly returns as of 2026-08-27.
Is ZIM a good diversifier for CTRM?
A fair diversifier. At 0.42, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.42 mean?
A reading of 0.42 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-zim.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ctrm-vs-zim/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CTRM correlations · ZIM correlations
