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IPWR vs ORLY: Correlation

How closely do Ideal Power Inc. (IPWR) and O'Reilly Automotive (ORLY) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.

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

Correlation (3Y)
-0.20
negative
Correlation (1Y)
-0.29
last 12 months
Correlation (5Y)
-0.09
long-run
Ann. covariance
-344.5
%² · weekly, annualized

How correlated are IPWR and ORLY?

On 3 years of weekly data the IPWR/ORLY correlation comes out at -0.20, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.29 over 1 year against -0.20 over 3. The 5-year figure is -0.09, and annualized covariance runs at -344.5 %².

ORLY is close to the least connected end of IPWR's tracked universe, ranking #10 of 13. On 12-month performance IPWR holds a 11.9-point edge, -3.7% against -15.6%. Note the risk asymmetry: IPWR runs 4.4 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.

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.

IPWR vs ORLY: side by side

IPWR (Ideal Power Inc.)ORLY (O'Reilly Automotive)
1-year return-3.7%-15.6%
5-year return-68.3%+120.8%
Volatility (ann.)86.2%19.8%
Beta vs S&P 5001.720.20
Max drawdown (3Y)-80.0%-23.3%
Market cap$0.1B$71.1B
P/E (trailing)28.4
Dividend yield0.00%0.00%
Sector / categoryUS ListedConsumer Discretionary
Smaller drawdown: ORLY -23.3% vs -80.0%Higher 5y return: ORLY +120.8% vs -68.3%
-46%0%+46%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. IPWR · ORLY

Year-by-year returns

YearIPWRORLY
2022-11.3%+19.5%
2023-27.4%+12.6%
2024-2.8%+24.8%
2025-59.1%+15.4%
2026+60.5%-3.7%

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

Are IPWR and ORLY good diversifiers for each other?

Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.

FAQ

What is the correlation between IPWR and ORLY?

As of 2026-08-27, the correlation of weekly returns between IPWR and ORLY is -0.20 over 3 years, -0.29 over 1 year and -0.09 over 5 years.

Is ORLY a good diversifier for IPWR?

Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.

What does a correlation of -0.20 mean?

On the −1 to +1 scale, -0.20 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/ipwr-vs-orly.json

IPWR vs ORLY: 3-year weekly correlation -0.20IPWR vs ORLY-0.20

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Related comparisons

Hubs: IPWR correlations · ORLY correlations