ACIU vs QQQ: Correlation
Measured on weekly returns over the past three years, AC Immune SA (ACIU) and Invesco QQQ Trust (QQQ) carry a correlation of 0.21, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACIU and QQQ?
Across a 3-year window, the weekly returns of ACIU and QQQ correlate at 0.21, weak. Lately the two have drifted apart, with the 1-year correlation at 0.10 versus 0.21 over 3 years. Stretching to 5 years gives 0.25, with an annualized covariance of 286.0 %².
Out of 11 assets tracked against ACIU, QQQ lands near the bottom at #8. Neither side won the trailing year by much: +30.9% against +26.3%. Note the risk asymmetry: ACIU runs 3.5 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.
ACIU vs QQQ: side by side
| ACIU (AC Immune SA) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +30.9% | +26.3% |
| 5-year return | -61.2% | +95.4% |
| Volatility (ann.) | 69.0% | 19.6% |
| Beta vs S&P 500 | 1.20 | 1.28 |
| Max drawdown (3Y) | -70.4% | -22.8% |
| Market cap | $0.3B | – |
| 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 | ACIU | QQQ |
|---|---|---|
| 2022 | -58.8% | -32.6% |
| 2023 | +145.1% | +54.9% |
| 2024 | -46.0% | +25.6% |
| 2025 | +16.3% | +20.8% |
| 2026 | -13.7% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACIU and QQQ good diversifiers for each other?
Reasonably. At 0.21, ACIU and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ACIU and QQQ?
Using weekly returns as of 2026-08-27: 0.21 over 3 years, with 0.10 over the last year and 0.25 over 5 years.
Is QQQ a good diversifier for ACIU?
Reasonably. At 0.21, ACIU and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.21 mean?
On the −1 to +1 scale, 0.21 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.
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Related comparisons
Hubs: ACIU correlations · QQQ correlations
