BRTX vs QQQ: Correlation
BioRestorative Therapies, Inc. (BRTX) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.17.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRTX and QQQ?
Over the past 3 years, BRTX and QQQ moved with a correlation of 0.17, which is weak. Recent behaviour matches the longer record: 0.16 over 1 year against 0.17 over 3. Over 5 years the correlation is 0.18, and the annualized covariance of weekly returns is 424.3 %².
Out of 10 assets tracked against BRTX, QQQ lands near the bottom at #6. Correlation aside, the last 12 months split them widely, with QQQ ahead by 113.1 points (-86.8% versus +26.3%). Risk is not evenly split, since BRTX carries 6.4 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.
BRTX vs QQQ: side by side
| BRTX (BioRestorative Therapies, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -86.8% | +26.3% |
| 5-year return | -98.4% | +95.4% |
| Volatility (ann.) | 125.6% | 19.6% |
| Beta vs S&P 500 | 1.27 | 1.28 |
| Max drawdown (3Y) | -95.1% | -22.8% |
| Market cap | – | – |
| 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 | BRTX | QQQ |
|---|---|---|
| 2022 | -36.6% | -32.6% |
| 2023 | -36.7% | +54.9% |
| 2024 | -17.8% | +25.6% |
| 2025 | -17.8% | +20.8% |
| 2026 | -82.5% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRTX and QQQ good diversifiers for each other?
Yes. With a correlation of 0.17, BRTX and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BRTX and QQQ?
As of 2026-08-27, the correlation of weekly returns between BRTX and QQQ is 0.17 over 3 years, 0.16 over 1 year and 0.18 over 5 years.
Is QQQ a good diversifier for BRTX?
Yes. With a correlation of 0.17, BRTX and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.17 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/brtx-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/brtx-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BRTX correlations · QQQ correlations
