CPS vs SPOK: Correlation
Cooper-Standard Holdings Inc. (CPS) and Spok Holdings, Inc. (SPOK) show a moderate relationship: their 3-year correlation of weekly returns is 0.41.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CPS and SPOK?
On 3 years of weekly data the CPS/SPOK correlation comes out at 0.41, moderate. Little has changed lately, as the 1-year reading of 0.41 lands near the 3-year figure. The 5-year figure is 0.24, and annualized covariance runs at 802.6 %².
By 3-year correlation, SPOK places #6 of the 12 assets tracked against CPS. On 12-month performance CPS holds a 9.1-point edge, -25.8% against -34.9%. Risk is not evenly split, since CPS carries 2.7 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.
CPS vs SPOK: side by side
| CPS (Cooper-Standard Holdings Inc.) | SPOK (Spok Holdings, Inc.) | |
|---|---|---|
| 1-year return | -25.8% | -34.9% |
| 5-year return | +15.8% | +119.7% |
| Volatility (ann.) | 72.2% | 26.9% |
| Beta vs S&P 500 | 1.75 | 0.60 |
| Max drawdown (3Y) | -45.2% | -39.9% |
| Market cap | $0.5B | $0.2B |
| P/E (trailing) | – | 18.2 |
| Dividend yield | 0.00% | 12.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CPS | SPOK |
|---|---|---|
| 2022 | -59.6% | +2.9% |
| 2023 | +115.7% | +108.0% |
| 2024 | -30.6% | +12.1% |
| 2025 | +142.1% | -10.9% |
| 2026 | -19.6% | -14.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CPS and SPOK good diversifiers for each other?
Reasonably. At 0.41, CPS and SPOK keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CPS and SPOK?
As of 2026-08-27, the correlation of weekly returns between CPS and SPOK is 0.41 over 3 years, 0.41 over 1 year and 0.24 over 5 years.
Is SPOK a good diversifier for CPS?
Reasonably. At 0.41, CPS and SPOK keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.41 mean?
A reading of 0.41 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
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Related comparisons
Hubs: CPS correlations · SPOK correlations
