BCAB vs QQQ: Correlation
How closely do BioAtla, Inc. (BCAB) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.31, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCAB and QQQ?
Across a 3-year window, the weekly returns of BCAB and QQQ correlate at 0.31, moderate. The link has loosened recently: the 1-year correlation (0.07) runs below the 3-year figure (0.31). Stretching to 5 years gives 0.31, with an annualized covariance of 714.5 %².
Among the 11 assets we track against BCAB, QQQ sits near the bottom by co-movement, at rank #7. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 112.3 percentage points (-86.0% for BCAB against +26.3% for QQQ). One caveat on sizing: BCAB is 6.1 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.
BCAB vs QQQ: side by side
| BCAB (BioAtla, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -86.0% | +26.3% |
| 5-year return | -99.8% | +95.4% |
| Volatility (ann.) | 119.3% | 19.6% |
| Beta vs S&P 500 | 2.75 | 1.28 |
| Max drawdown (3Y) | -98.4% | -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 | BCAB | QQQ |
|---|---|---|
| 2022 | -58.0% | -32.6% |
| 2023 | -70.2% | +54.9% |
| 2024 | -76.0% | +25.6% |
| 2025 | -3.9% | +20.8% |
| 2026 | -88.9% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCAB and QQQ good diversifiers for each other?
Reasonably. At 0.31, BCAB and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BCAB and QQQ?
Using weekly returns as of 2026-08-27: 0.31 over 3 years, with 0.07 over the last year and 0.31 over 5 years.
Is QQQ a good diversifier for BCAB?
Reasonably. At 0.31, BCAB and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.31 mean?
On the −1 to +1 scale, 0.31 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/bcab-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bcab-vs-qqq/)
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Related comparisons
Hubs: BCAB correlations · QQQ correlations
