IDXX vs QQQ: Correlation
Idexx Laboratories (IDXX) and Invesco QQQ Trust (QQQ) show a moderate relationship: their 3-year correlation of weekly returns is 0.43.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IDXX and QQQ?
Across a 3-year window, the weekly returns of IDXX and QQQ correlate at 0.43, moderate. The past 12 months show a weaker link (0.20) than the 3-year average (0.43). Stretching to 5 years gives 0.57, with an annualized covariance of 257.5 %².
Within IDXX's tracked universe of 35 assets, QQQ comes in at #21 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 41.2 percentage points (-14.9% for IDXX against +26.3% for QQQ). On a rolling one-year basis the correlation drifted between 0.23 and 0.72, a moderate band. One caveat on sizing: IDXX is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
IDXX vs QQQ: side by side
| IDXX (Idexx Laboratories) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -14.9% | +26.3% |
| 5-year return | -20.7% | +95.4% |
| Volatility (ann.) | 30.9% | 19.6% |
| Beta vs S&P 500 | 1.01 | 1.28 |
| Max drawdown (3Y) | -37.4% | -22.8% |
| Market cap | $42.9B | – |
| P/E (trailing) | 38.9 | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | Health Care | ETF · US Growth & Tech |
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.
Year-by-year returns
| Year | IDXX | QQQ |
|---|---|---|
| 2022 | -38.0% | -32.6% |
| 2023 | +36.1% | +54.9% |
| 2024 | -25.5% | +25.6% |
| 2025 | +63.6% | +20.8% |
| 2026 | -19.4% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
Keep in mind that QQQ holds IDXX at a 0.19% weight, which makes a slice of this correlation mechanical rather than coincidental.
Are IDXX and QQQ good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between IDXX and QQQ?
Using weekly returns as of 2026-08-27: 0.43 over 3 years, with 0.20 over the last year and 0.57 over 5 years.
Is QQQ a good diversifier for IDXX?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.43 mean?
On the −1 to +1 scale, 0.43 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
$ curl https://www.pairbook.io/api/v1/pairs/idxx-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/idxx-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: IDXX correlations · QQQ correlations
