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PKE vs SIGI: Correlation

Measured on weekly returns over the past three years, Park Aerospace Corp. (PKE) and Selective Insurance Group, Inc. (SIGI) carry a correlation of 0.46, a moderate link.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.46
moderate
Correlation (1Y)
0.43
last 12 months
Correlation (5Y)
0.41
long-run
Ann. covariance
420.5
%² · weekly, annualized

How correlated are PKE and SIGI?

On 3 years of weekly data the PKE/SIGI correlation comes out at 0.46, moderate. Recent behaviour matches the longer record: 0.43 over 1 year against 0.46 over 3. The 5-year figure is 0.41, and annualized covariance runs at 420.5 %².

Within PKE's tracked universe of 13 assets, SIGI comes in at #5 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months PKE outperformed by 57.0 percentage points (+76.1% for PKE against +19.1% for SIGI).

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.

PKE vs SIGI: side by side

PKE (Park Aerospace Corp.)SIGI (Selective Insurance Group, Inc.)
1-year return+76.1%+19.1%
5-year return+176.6%+18.8%
Volatility (ann.)36.0%25.4%
Beta vs S&P 5000.800.32
Max drawdown (3Y)-26.6%-30.5%
Market cap$0.7B$5.5B
P/E (trailing)51.811.5
Dividend yield1.52%1.81%
Sector / categoryUS ListedUS Listed
Lower P/E: SIGI 11.5 vs 51.8Higher yield: SIGI 1.81% vs 1.52%Smaller drawdown: PKE -26.6% vs -30.5%Higher 5y return: PKE +176.6% vs +18.8%
-6%0%+103%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. PKE · SIGI

Year-by-year returns

YearPKESIGI
2022+4.9%+9.7%
2023+21.5%+13.7%
2024+3.2%-4.6%
2025+50.5%-8.8%
2026+54.9%+11.9%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are PKE and SIGI good diversifiers for each other?

Reasonably. At 0.46, PKE and SIGI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

FAQ

What is the correlation between PKE and SIGI?

The PKE/SIGI correlation stands at 0.46 on a 3-year window (1 year: 0.43, 5 years: 0.41), computed from weekly returns as of 2026-08-27.

Is SIGI a good diversifier for PKE?

Reasonably. At 0.46, PKE and SIGI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

What does a correlation of 0.46 mean?

On the −1 to +1 scale, 0.46 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/pke-vs-sigi.json

PKE vs SIGI: 3-year weekly correlation 0.46PKE vs SIGI0.46

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Related comparisons

Hubs: PKE correlations · SIGI correlations