MBRX vs QQQ: Correlation
Measured on weekly returns over the past three years, Moleculin Biotech, Inc. (MBRX) and Invesco QQQ Trust (QQQ) carry a correlation of 0.13, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MBRX and QQQ?
On 3 years of weekly data the MBRX/QQQ correlation comes out at 0.13, weak. Lately the two have drifted apart, with the 1-year correlation at -0.00 versus 0.13 over 3 years. The 5-year figure is 0.16, and annualized covariance runs at 412.2 %².
By 3-year correlation, QQQ places #7 of the 13 assets tracked against MBRX. The last year tells two different stories: QQQ led by 121.8 percentage points, -95.5% for MBRX against +26.3% for QQQ. One caveat on sizing: MBRX is 8.2 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
MBRX vs QQQ: side by side
| MBRX (Moleculin Biotech, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -95.5% | +26.3% |
| 5-year return | -99.9% | +95.4% |
| Volatility (ann.) | 160.4% | 19.6% |
| Beta vs S&P 500 | 1.10 | 1.28 |
| Max drawdown (3Y) | -99.9% | -22.8% |
| Market cap | – | – |
| P/E (trailing) | 0.0 | – |
| 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 | MBRX | QQQ |
|---|---|---|
| 2022 | -43.0% | -32.6% |
| 2023 | -19.1% | +54.9% |
| 2024 | -86.8% | +25.6% |
| 2025 | -92.2% | +20.8% |
| 2026 | -79.2% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MBRX and QQQ good diversifiers for each other?
Yes. With a correlation of 0.13, MBRX and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between MBRX and QQQ?
The MBRX/QQQ correlation stands at 0.13 on a 3-year window (1 year: -0.00, 5 years: 0.16), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for MBRX?
Yes. With a correlation of 0.13, MBRX and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.13 mean?
A reading of 0.13 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/mbrx-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mbrx-vs-qqq/)
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Related comparisons
Hubs: MBRX correlations · QQQ correlations
