PairBook
HomeECVT › ECVT vs QQQ

ECVT vs QQQ: Correlation

Measured on weekly returns over the past three years, Ecovyst Inc. (ECVT) and Invesco QQQ Trust (QQQ) carry a correlation of 0.24, a weak link.

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

Correlation (3Y)
0.24
weak
Correlation (1Y)
-0.09
last 12 months
Correlation (5Y)
0.28
long-run
Ann. covariance
183.6
%² · weekly, annualized

How correlated are ECVT and QQQ?

Across a 3-year window, the weekly returns of ECVT and QQQ correlate at 0.24, weak. The link has loosened recently: the 1-year correlation (-0.09) runs below the 3-year figure (0.24). Stretching to 5 years gives 0.28, with an annualized covariance of 183.6 %².

Among the 13 assets we track against ECVT, QQQ sits near the bottom by co-movement, at rank #10. On 12-month performance QQQ holds a 14.8-point edge, +11.5% against +26.3%. Note the risk asymmetry: ECVT runs 2.0 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.

ECVT vs QQQ: side by side

ECVT (Ecovyst Inc.)QQQ (Invesco QQQ Trust)
1-year return+11.5%+26.3%
5-year return-23.2%+95.4%
Volatility (ann.)39.7%19.6%
Beta vs S&P 5000.821.28
Max drawdown (3Y)-52.2%-22.8%
Market cap$1.1B
P/E (trailing)44.1
Dividend yield0.00%0.44%
Expense ratio0.18%
Assets under management$452.8B
Sector / categoryUS ListedETF · US Growth & Tech
Higher yield: QQQ 0.44% vs 0.00%Smaller drawdown: QQQ -22.8% vs -52.2%Higher 5y return: QQQ +95.4% vs -23.2%

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.

-10%0%+62%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. ECVT · QQQ

Year-by-year returns

YearECVTQQQ
2022-13.5%-32.6%
2023+10.3%+54.9%
2024-21.8%+25.6%
2025+27.4%+20.8%
2026+4.3%+17.7%

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

Are ECVT and QQQ good diversifiers for each other?

Reasonably. At 0.24, ECVT and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

FAQ

What is the correlation between ECVT and QQQ?

Using weekly returns as of 2026-08-27: 0.24 over 3 years, with -0.09 over the last year and 0.28 over 5 years.

Is QQQ a good diversifier for ECVT?

Reasonably. At 0.24, ECVT and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

What does a correlation of 0.24 mean?

On the −1 to +1 scale, 0.24 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/ecvt-vs-qqq.json

ECVT vs QQQ: 3-year weekly correlation 0.24ECVT vs QQQ0.24

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

[![ECVT vs QQQ correlation](https://www.pairbook.io/api/v1/badge/ecvt-vs-qqq.svg)](https://www.pairbook.io/pair/ecvt-vs-qqq/)

No key needed, free to use. Full endpoint list in the API documentation.

Related comparisons

Hubs: ECVT correlations · QQQ correlations