PairBook
HomeCBT › CBT vs QQQ

CBT vs QQQ: Correlation

How closely do Cabot Corporation (CBT) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.

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

Correlation (3Y)
0.39
moderate
Correlation (1Y)
0.28
last 12 months
Correlation (5Y)
0.43
long-run
Ann. covariance
218.5
%² · weekly, annualized

How correlated are CBT and QQQ?

Across a 3-year window, the weekly returns of CBT and QQQ correlate at 0.39, moderate. The past 12 months show a weaker link (0.28) than the 3-year average (0.39). Stretching to 5 years gives 0.43, with an annualized covariance of 218.5 %².

Out of 15 assets tracked against CBT, QQQ lands near the bottom at #12. Correlation aside, the last 12 months split them widely, with QQQ ahead by 20.6 points (+5.7% versus +26.3%).

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.

CBT vs QQQ: side by side

CBT (Cabot Corporation)QQQ (Invesco QQQ Trust)
1-year return+5.7%+26.3%
5-year return+73.1%+95.4%
Volatility (ann.)28.5%19.6%
Beta vs S&P 5000.841.28
Max drawdown (3Y)-48.8%-22.8%
Market cap$4.4B
P/E (trailing)23.7
Dividend yield2.16%0.44%
Expense ratio0.18%
Assets under management$452.8B
Sector / categoryUS ListedETF · US Growth & Tech
Higher yield: CBT 2.16% vs 0.44%Smaller drawdown: QQQ -22.8% vs -48.8%Higher 5y return: QQQ +95.4% vs +73.1%

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.

-24%0%+29%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. CBT · QQQ

Year-by-year returns

YearCBTQQQ
2022+21.4%-32.6%
2023+27.6%+54.9%
2024+11.3%+25.6%
2025-25.7%+20.8%
2026+29.1%+17.7%

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

Are CBT and QQQ good diversifiers for each other?

A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between CBT and QQQ?

As of 2026-08-27, the correlation of weekly returns between CBT and QQQ is 0.39 over 3 years, 0.28 over 1 year and 0.43 over 5 years.

Is QQQ a good diversifier for CBT?

A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.39 mean?

A reading of 0.39 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/cbt-vs-qqq.json

CBT vs QQQ: 3-year weekly correlation 0.39CBT vs QQQ0.39

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

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

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

Related comparisons

Hubs: CBT correlations · QQQ correlations