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COO vs QQQ: Correlation

Measured on weekly returns over the past three years, Cooper Companies (The) (COO) and Invesco QQQ Trust (QQQ) carry a correlation of 0.21, a weak link.

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

Correlation (3Y)
0.21
weak
Correlation (1Y)
-0.16
last 12 months
Correlation (5Y)
0.44
long-run
Ann. covariance
112.4
%² · weekly, annualized

How correlated are COO and QQQ?

On 3 years of weekly data the COO/QQQ correlation comes out at 0.21, weak. The past 12 months show a weaker link (-0.16) than the 3-year average (0.21). The 5-year figure is 0.44, and annualized covariance runs at 112.4 %².

Among the 38 assets we track against COO, QQQ ranks #28 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 30.6 percentage points (-4.3% for COO against +26.3% for QQQ). This link changes with the market regime, having swung between -0.14 and 0.69 on a rolling one-year basis.

+1.0+0.50-0.5-1.020232026-08-27
One-year correlation, rolled weekly across the last 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.

COO vs QQQ: side by side

COO (Cooper Companies (The))QQQ (Invesco QQQ Trust)
1-year return-4.3%+26.3%
5-year return-36.8%+95.4%
Volatility (ann.)27.7%19.6%
Beta vs S&P 5000.691.28
Max drawdown (3Y)-47.0%-22.8%
Market cap
P/E (trailing)61.7
Dividend yield0.00%0.44%
Expense ratio0.18%
Assets under management$452.8B
Sector / categoryHealth CareETF · US Growth & Tech
Higher yield: QQQ 0.44% vs 0.00%Smaller drawdown: QQQ -22.8% vs -47.0%Higher 5y return: QQQ +95.4% vs -36.8%

QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.

-12%0%+29%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. COO · QQQ

Year-by-year returns

YearCOOQQQ
2022-21.1%-32.6%
2023+14.5%+54.9%
2024-2.8%+25.6%
2025-10.8%+20.8%
2026-13.4%+17.7%

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

Are COO and QQQ good diversifiers for each other?

Reasonably. At 0.21, COO and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

FAQ

What is the correlation between COO and QQQ?

Using weekly returns as of 2026-08-27: 0.21 over 3 years, with -0.16 over the last year and 0.44 over 5 years.

Is QQQ a good diversifier for COO?

Reasonably. At 0.21, COO and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

What does a correlation of 0.21 mean?

On the −1 to +1 scale, 0.21 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.

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COO vs QQQ: 3-year weekly correlation 0.21COO vs QQQ0.21

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Related comparisons

Hubs: COO correlations · QQQ correlations