PWR vs ZKIN: Correlation
Measured on weekly returns over the past three years, Quanta Services (PWR) and ZK International Group Co., Ltd (ZKIN) carry a correlation of -0.16, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PWR and ZKIN?
Over the past 3 years, PWR and ZKIN moved with a correlation of -0.16, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.14) sits close to the 3-year figure. Over 5 years the correlation is -0.11, and the annualized covariance of weekly returns is -1649.3 %².
Among the 33 assets we track against PWR, ZKIN ranks #26 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months PWR outperformed by 104.7 percentage points (+63.1% for PWR against -41.6% for ZKIN). Risk is not evenly split, since ZKIN carries 8.7 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.
PWR vs ZKIN: side by side
| PWR (Quanta Services) | ZKIN (ZK International Group Co., Ltd) | |
|---|---|---|
| 1-year return | +63.1% | -41.6% |
| 5-year return | +506.1% | -68.9% |
| Volatility (ann.) | 33.9% | 296.5% |
| Beta vs S&P 500 | 1.29 | -1.03 |
| Max drawdown (3Y) | -33.9% | -74.7% |
| Market cap | $93.5B | $0.1B |
| P/E (trailing) | 70.4 | – |
| Dividend yield | 0.07% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | PWR | ZKIN |
|---|---|---|
| 2022 | +24.6% | -70.6% |
| 2023 | +51.7% | +140.2% |
| 2024 | +46.6% | -38.8% |
| 2025 | +33.7% | +150.0% |
| 2026 | +47.4% | -23.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PWR and ZKIN good diversifiers for each other?
Yes. With a correlation of -0.16, PWR and ZKIN have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PWR and ZKIN?
As of 2026-08-27, the correlation of weekly returns between PWR and ZKIN is -0.16 over 3 years, -0.14 over 1 year and -0.11 over 5 years.
Is ZKIN a good diversifier for PWR?
Yes. With a correlation of -0.16, PWR and ZKIN have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.16 mean?
A reading of -0.16 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/pwr-vs-zkin.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/pwr-vs-zkin/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PWR correlations · ZKIN correlations
