OPEN vs PKE: Correlation
Opendoor Technologies Inc (OPEN) and Park Aerospace Corp. (PKE) show a moderate relationship: their 3-year correlation of weekly returns is 0.47.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OPEN and PKE?
Over the past 3 years, OPEN and PKE moved with a correlation of 0.47, which is moderate. The link has loosened recently: the 1-year correlation (0.12) runs below the 3-year figure (0.47). Over 5 years the correlation is 0.38, and the annualized covariance of weekly returns is 2442.9 %².
Among the 18 assets we track against OPEN, PKE ranks #6 by 3-year correlation. The last year tells two different stories: PKE led by 92.0 percentage points, -15.9% for OPEN against +76.1% for PKE. Risk is not evenly split, since OPEN carries 4.0 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.
OPEN vs PKE: side by side
| OPEN (Opendoor Technologies Inc) | PKE (Park Aerospace Corp.) | |
|---|---|---|
| 1-year return | -15.9% | +76.1% |
| 5-year return | -80.8% | +176.6% |
| Volatility (ann.) | 145.6% | 36.0% |
| Beta vs S&P 500 | 2.46 | 0.80 |
| Max drawdown (3Y) | -89.2% | -26.6% |
| Market cap | $3.3B | $0.7B |
| P/E (trailing) | – | 51.8 |
| Dividend yield | 0.00% | 1.52% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OPEN | PKE |
|---|---|---|
| 2022 | -92.1% | +4.9% |
| 2023 | +286.2% | +21.5% |
| 2024 | -64.3% | +3.2% |
| 2025 | +264.4% | +50.5% |
| 2026 | -42.0% | +54.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OPEN and PKE good diversifiers for each other?
Reasonably. At 0.47, OPEN and PKE keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between OPEN and PKE?
The OPEN/PKE correlation stands at 0.47 on a 3-year window (1 year: 0.12, 5 years: 0.38), computed from weekly returns as of 2026-08-27.
Is PKE a good diversifier for OPEN?
Reasonably. At 0.47, OPEN and PKE keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.47 mean?
A reading of 0.47 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/open-vs-pke.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/open-vs-pke/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: OPEN correlations · PKE correlations
