HCSG vs QQQ: Correlation
How closely do Healthcare Services Group, Inc. (HCSG) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.25, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HCSG and QQQ?
Over the past 3 years, HCSG and QQQ moved with a correlation of 0.25, which is weak. The relationship has been stable: the 1-year correlation (0.18) sits close to the 3-year figure. Over 5 years the correlation is 0.24, and the annualized covariance of weekly returns is 222.4 %².
QQQ is close to the least connected end of HCSG's tracked universe, ranking #11 of 14. Their recent paths diverged sharply: over the last 12 months HCSG outperformed by 20.9 percentage points (+47.2% for HCSG against +26.3% for QQQ). Risk is not evenly split, since HCSG carries 2.3 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.
HCSG vs QQQ: side by side
| HCSG (Healthcare Services Group, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +47.2% | +26.3% |
| 5-year return | -6.5% | +95.4% |
| Volatility (ann.) | 44.6% | 19.6% |
| Beta vs S&P 500 | 0.90 | 1.28 |
| Max drawdown (3Y) | -27.4% | -22.8% |
| Market cap | $1.6B | – |
| P/E (trailing) | 13.4 | – |
| 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 | HCSG | QQQ |
|---|---|---|
| 2022 | -28.7% | -32.6% |
| 2023 | -13.6% | +54.9% |
| 2024 | +12.1% | +25.6% |
| 2025 | +64.5% | +20.8% |
| 2026 | +20.0% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HCSG and QQQ good diversifiers for each other?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between HCSG and QQQ?
The HCSG/QQQ correlation stands at 0.25 on a 3-year window (1 year: 0.18, 5 years: 0.24), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for HCSG?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.25 mean?
A reading of 0.25 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/hcsg-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/hcsg-vs-qqq/)
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Related comparisons
Hubs: HCSG correlations · QQQ correlations
