EMPD vs PKE: Correlation
Measured on weekly returns over the past three years, Empery Digital Inc. (EMPD) and Park Aerospace Corp. (PKE) carry a correlation of 0.44, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EMPD and PKE?
Over the past 3 years, EMPD and PKE moved with a correlation of 0.44, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.28 versus 0.44 over 3 years. Over 5 years the correlation is 0.33, and the annualized covariance of weekly returns is 2112.0 %².
PKE is one of the assets that tracks EMPD most closely: it ranks #1 out of the 10 assets we track against EMPD. Correlation aside, the last 12 months split them widely, with PKE ahead by 131.5 points (-55.4% versus +76.1%). One caveat on sizing: EMPD is 3.8 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
EMPD vs PKE: side by side
| EMPD (Empery Digital Inc.) | PKE (Park Aerospace Corp.) | |
|---|---|---|
| 1-year return | -55.4% | +76.1% |
| 5-year return | -100.0% | +176.6% |
| Volatility (ann.) | 135.0% | 36.0% |
| Beta vs S&P 500 | 1.57 | 0.80 |
| Max drawdown (3Y) | -100.0% | -26.6% |
| Market cap | $0.1B | $0.7B |
| P/E (trailing) | 3.8 | 51.8 |
| Dividend yield | 0.00% | 1.52% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EMPD | PKE |
|---|---|---|
| 2022 | -90.6% | +4.9% |
| 2023 | -98.0% | +21.5% |
| 2024 | -99.9% | +3.2% |
| 2025 | -86.9% | +50.5% |
| 2026 | -31.4% | +54.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EMPD and PKE good diversifiers for each other?
Reasonably. At 0.44, EMPD and PKE keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between EMPD and PKE?
Using weekly returns as of 2026-08-27: 0.44 over 3 years, with 0.28 over the last year and 0.33 over 5 years.
Is PKE a good diversifier for EMPD?
Reasonably. At 0.44, EMPD and PKE keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.44 mean?
On the −1 to +1 scale, 0.44 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/empd-vs-pke.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/empd-vs-pke/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EMPD correlations · PKE correlations
