QQQ vs SRTA: Correlation
Invesco QQQ Trust (QQQ) and Strata Critical Medical, Inc. (SRTA) show a moderate relationship: their 3-year correlation of weekly returns is 0.40.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and SRTA?
Over the past 3 years, QQQ and SRTA moved with a correlation of 0.40, which is moderate. Recent behaviour matches the longer record: 0.45 over 1 year against 0.40 over 3. Over 5 years the correlation is 0.40, and the annualized covariance of weekly returns is 548.8 %².
Among the 4755 assets we track against QQQ, SRTA ranks #642 by 3-year correlation. Over the last 12 months SRTA came out ahead by 8.4 percentage points (+26.3% against +34.7%). Note the risk asymmetry: SRTA runs 3.6 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.
QQQ vs SRTA: side by side
| QQQ (Invesco QQQ Trust) | SRTA (Strata Critical Medical, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | +34.7% |
| 5-year return | +95.4% | -28.6% |
| Volatility (ann.) | 19.6% | 69.8% |
| Beta vs S&P 500 | 1.28 | 2.02 |
| Max drawdown (3Y) | -22.8% | -48.9% |
| Market cap | – | $0.5B |
| P/E (trailing) | – | – |
| Dividend yield | 0.44% | 0.00% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
QQQ, Invesco's Large Growth fund, carries $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | QQQ | SRTA |
|---|---|---|
| 2022 | -32.6% | -59.5% |
| 2023 | +54.9% | -1.4% |
| 2024 | +25.6% | +20.4% |
| 2025 | +20.8% | +13.2% |
| 2026 | +17.7% | +28.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and SRTA good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between QQQ and SRTA?
Using weekly returns as of 2026-08-27: 0.40 over 3 years, with 0.45 over the last year and 0.40 over 5 years.
Is SRTA a good diversifier for QQQ?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.40 mean?
On the −1 to +1 scale, 0.40 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-srta.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/qqq-vs-srta/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: QQQ correlations · SRTA correlations
