QQQ vs SRTS: Correlation
Measured on weekly returns over the past three years, Invesco QQQ Trust (QQQ) and Sensus Healthcare, Inc. (SRTS) carry a correlation of 0.06, a near-zero link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and SRTS?
On 3 years of weekly data the QQQ/SRTS correlation comes out at 0.06, near zero, meaning they move largely independently. Lately the two have drifted apart, with the 1-year correlation at -0.11 versus 0.06 over 3 years. The 5-year figure is 0.20, and annualized covariance runs at 90.5 %².
By 3-year correlation, SRTS places #4140 of the 4755 assets tracked against QQQ. The last year tells two different stories: QQQ led by 20.3 percentage points, +26.3% for QQQ against +6.0% for SRTS. Risk is not evenly split, since SRTS carries 3.8 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 SRTS: side by side
| QQQ (Invesco QQQ Trust) | SRTS (Sensus Healthcare, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | +6.0% |
| 5-year return | +95.4% | -7.4% |
| Volatility (ann.) | 19.6% | 74.0% |
| Beta vs S&P 500 | 1.28 | 0.77 |
| Max drawdown (3Y) | -22.8% | -70.1% |
| Market cap | – | $0.1B |
| 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 | SRTS |
|---|---|---|
| 2022 | -32.6% | +2.8% |
| 2023 | +54.9% | -68.2% |
| 2024 | +25.6% | +193.2% |
| 2025 | +20.8% | -42.5% |
| 2026 | +17.7% | -15.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and SRTS good diversifiers for each other?
Yes: at 0.06, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between QQQ and SRTS?
The QQQ/SRTS correlation stands at 0.06 on a 3-year window (1 year: -0.11, 5 years: 0.20), computed from weekly returns as of 2026-08-27.
Is SRTS a good diversifier for QQQ?
Yes: at 0.06, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.06 mean?
On the −1 to +1 scale, 0.06 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-srts.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/qqq-vs-srts/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: QQQ correlations · SRTS correlations
