PUBM vs QQQ: Correlation
Measured on weekly returns over the past three years, PubMatic, Inc. (PUBM) and Invesco QQQ Trust (QQQ) carry a correlation of 0.38, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PUBM and QQQ?
On 3 years of weekly data the PUBM/QQQ correlation comes out at 0.38, moderate. Recent behaviour matches the longer record: 0.38 over 1 year against 0.38 over 3. The 5-year figure is 0.40, and annualized covariance runs at 451.7 %².
Out of 17 assets tracked against PUBM, QQQ lands near the bottom at #13. Correlation aside, the last 12 months split them widely, with PUBM ahead by 65.4 points (+91.7% versus +26.3%). Risk is not evenly split, since PUBM carries 3.1 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.
PUBM vs QQQ: side by side
| PUBM (PubMatic, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +91.7% | +26.3% |
| 5-year return | -40.5% | +95.4% |
| Volatility (ann.) | 61.6% | 19.6% |
| Beta vs S&P 500 | 1.56 | 1.28 |
| Max drawdown (3Y) | -73.9% | -22.8% |
| Market cap | $0.7B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | 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 | PUBM | QQQ |
|---|---|---|
| 2022 | -62.4% | -32.6% |
| 2023 | +27.3% | +54.9% |
| 2024 | -9.9% | +25.6% |
| 2025 | -39.6% | +20.8% |
| 2026 | +84.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PUBM and QQQ good diversifiers for each other?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between PUBM and QQQ?
Using weekly returns as of 2026-08-27: 0.38 over 3 years, with 0.38 over the last year and 0.40 over 5 years.
Is QQQ a good diversifier for PUBM?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.38 mean?
On the −1 to +1 scale, 0.38 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/pubm-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pubm-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PUBM correlations · QQQ correlations
