DCTH vs QQQ: Correlation
Measured on weekly returns over the past three years, Delcath Systems, Inc. (DCTH) and Invesco QQQ Trust (QQQ) carry a correlation of 0.29, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DCTH and QQQ?
Across a 3-year window, the weekly returns of DCTH and QQQ correlate at 0.29, weak. The past 12 months show a tighter link (0.40) than the 3-year average (0.29). Stretching to 5 years gives 0.23, with an annualized covariance of 376.1 %².
Out of 10 assets tracked against DCTH, QQQ lands near the bottom at #7. Correlation aside, the last 12 months split them widely, with DCTH ahead by 23.5 points (+49.8% versus +26.3%). Note the risk asymmetry: DCTH runs 3.4 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.
DCTH vs QQQ: side by side
| DCTH (Delcath Systems, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +49.8% | +26.3% |
| 5-year return | +80.7% | +95.4% |
| Volatility (ann.) | 65.8% | 19.6% |
| Beta vs S&P 500 | 1.51 | 1.28 |
| Max drawdown (3Y) | -54.8% | -22.8% |
| Market cap | $0.6B | – |
| P/E (trailing) | 1639.0 | – |
| 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 | DCTH | QQQ |
|---|---|---|
| 2022 | -53.5% | -32.6% |
| 2023 | +15.6% | +54.9% |
| 2024 | +189.4% | +25.6% |
| 2025 | -16.1% | +20.8% |
| 2026 | +62.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DCTH and QQQ good diversifiers for each other?
A fair diversifier. At 0.29, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between DCTH and QQQ?
The DCTH/QQQ correlation stands at 0.29 on a 3-year window (1 year: 0.40, 5 years: 0.23), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for DCTH?
A fair diversifier. At 0.29, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.29 mean?
A reading of 0.29 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/dcth-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/dcth-vs-qqq/)
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Related comparisons
Hubs: DCTH correlations · QQQ correlations
