QQQ vs TAN: Correlation
Invesco QQQ Trust (QQQ) and Invesco Solar ETF (TAN) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and TAN?
Across a 3-year window, the weekly returns of QQQ and TAN correlate at 0.39, moderate. Recent behaviour matches the longer record: 0.45 over 1 year against 0.39 over 3. Stretching to 5 years gives 0.45, with an annualized covariance of 282.1 %².
Within QQQ's tracked universe of 4755 assets, TAN comes in at #722 by 3-year correlation. Neither side won the trailing year by much: +26.3% against +21.4%. On a rolling one-year basis the correlation drifted between 0.22 and 0.63, a moderate band. Risk is not evenly split, since TAN carries 1.9 times the volatility of the other side.
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.
QQQ vs TAN: side by side
| QQQ (Invesco QQQ Trust) | TAN (Invesco Solar ETF) | |
|---|---|---|
| 1-year return | +26.3% | +21.4% |
| 5-year return | +95.4% | -41.9% |
| Volatility (ann.) | 19.6% | 37.4% |
| Beta vs S&P 500 | 1.28 | 1.04 |
| Max drawdown (3Y) | -22.8% | -55.4% |
| Dividend yield | 0.44% | – |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | ETF · Thematic |
On the fund side, QQQ sits in the Large Growth category at Invesco, with $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | QQQ | TAN |
|---|---|---|
| 2022 | -32.6% | -5.2% |
| 2023 | +54.9% | -26.8% |
| 2024 | +25.6% | -37.6% |
| 2025 | +20.8% | +48.3% |
| 2026 | +17.7% | +1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and TAN 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 QQQ and TAN?
Using weekly returns as of 2026-08-27: 0.39 over 3 years, with 0.45 over the last year and 0.45 over 5 years.
Is TAN a good diversifier for QQQ?
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?
On the −1 to +1 scale, 0.39 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/qqq-vs-tan.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/qqq-vs-tan/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: QQQ correlations · TAN correlations
