PairBook
HomeJKHY › JKHY vs WDC

JKHY vs WDC: Correlation

Measured on weekly returns over the past three years, Jack Henry & Associates (JKHY) and Western Digital (WDC) carry a correlation of -0.22, a negative link.

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

Correlation (3Y)
-0.22
negative
Correlation (1Y)
-0.37
last 12 months
Correlation (5Y)
-0.07
long-run
Ann. covariance
-296.1
%² · weekly, annualized

How correlated are JKHY and WDC?

Across a 3-year window, the weekly returns of JKHY and WDC correlate at -0.22, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.37 versus -0.22 over 3 years. Stretching to 5 years gives -0.07, with an annualized covariance of -296.1 %².

Among the 33 assets we track against JKHY, WDC ranks #26 by 3-year correlation. The last year tells two different stories: WDC led by 468.5 percentage points, +5.8% for JKHY against +474.3% for WDC. The relationship is regime-dependent: the rolling one-year correlation swung between -0.34 and 0.27 over the past three years, so this pair behaves very differently depending on the market environment. Risk is not evenly split, since WDC carries 2.5 times the volatility of the other side.

+1.0+0.50-0.5-1.020232026-08-27
How the one-year correlation itself moved over the past three years.
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.

JKHY vs WDC: side by side

JKHY (Jack Henry & Associates)WDC (Western Digital)
1-year return+5.8%+474.3%
5-year return+2.6%+889.2%
Volatility (ann.)23.0%58.0%
Beta vs S&P 5000.212.15
Max drawdown (3Y)-35.4%-49.6%
Market cap$12.1B$166.6B
P/E (trailing)24.717.4
Dividend yield1.38%0.11%
Sector / categoryFinancialsInformation Technology
Lower P/E: WDC 17.4 vs 24.7Higher yield: JKHY 1.38% vs 0.11%Smaller drawdown: JKHY -35.4% vs -49.6%Higher 5y return: WDC +889.2% vs +2.6%
-21%0%+712%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. JKHY · WDC

Year-by-year returns

YearJKHYWDC
2022+6.2%-51.6%
2023-5.7%+66.0%
2024+8.7%+13.9%
2025+5.5%+283.7%
2026-6.3%+168.4%

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

Are JKHY and WDC good diversifiers for each other?

Yes. With a correlation of -0.22, JKHY and WDC have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

FAQ

What is the correlation between JKHY and WDC?

Using weekly returns as of 2026-08-27: -0.22 over 3 years, with -0.37 over the last year and -0.07 over 5 years.

Is WDC a good diversifier for JKHY?

Yes. With a correlation of -0.22, JKHY and WDC have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

What does a correlation of -0.22 mean?

A reading of -0.22 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

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

JKHY vs WDC: 3-year weekly correlation -0.22JKHY vs WDC-0.22

Embed this badge (it refreshes with the data), with attribution:

[![JKHY vs WDC correlation](https://www.pairbook.io/api/v1/badge/jkhy-vs-wdc.svg)](https://www.pairbook.io/pair/jkhy-vs-wdc/)

The core API is free. Terms and every endpoint in the API documentation.

Related comparisons

Hubs: JKHY correlations · WDC correlations