CLPR vs ZTEK: Correlation
Measured on weekly returns over the past three years, Clipper Realty Inc. (CLPR) and Zentek Ltd. (ZTEK) carry a correlation of -0.25, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CLPR and ZTEK?
Across a 3-year window, the weekly returns of CLPR and ZTEK correlate at -0.25, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.16 over 1 year against -0.25 over 3. Stretching to 5 years gives -0.15, with an annualized covariance of -905.5 %².
ZTEK is close to the least connected end of CLPR's tracked universe, ranking #12 of 12. Their 12-month results are close: -14.6% for CLPR against -17.6% for ZTEK. Risk is not evenly split, since ZTEK carries 1.8 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.
CLPR vs ZTEK: side by side
| CLPR (Clipper Realty Inc.) | ZTEK (Zentek Ltd.) | |
|---|---|---|
| 1-year return | -14.6% | -17.6% |
| 5-year return | -40.2% | -78.0% |
| Volatility (ann.) | 45.5% | 80.4% |
| Beta vs S&P 500 | 0.61 | 0.63 |
| Max drawdown (3Y) | -52.3% | -79.2% |
| Market cap | $0.1B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 11.31% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CLPR | ZTEK |
|---|---|---|
| 2022 | -32.7% | -60.1% |
| 2023 | -9.5% | -30.3% |
| 2024 | -7.9% | -13.0% |
| 2025 | -8.0% | -31.9% |
| 2026 | -3.0% | -12.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CLPR and ZTEK good diversifiers for each other?
By historical standards, yes. A correlation of -0.25 means the two rarely move for the same reasons.
FAQ
What is the correlation between CLPR and ZTEK?
As of 2026-08-27, the correlation of weekly returns between CLPR and ZTEK is -0.25 over 3 years, -0.16 over 1 year and -0.15 over 5 years.
Is ZTEK a good diversifier for CLPR?
By historical standards, yes. A correlation of -0.25 means the two rarely move for the same reasons.
What does a correlation of -0.25 mean?
On the −1 to +1 scale, -0.25 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/clpr-vs-ztek.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/clpr-vs-ztek/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CLPR correlations · ZTEK correlations
