BSY vs QQQ: Correlation
How closely do Bentley Systems, Incorporated (BSY) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.32, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BSY and QQQ?
Over the past 3 years, BSY and QQQ moved with a correlation of 0.32, which is moderate. The link has loosened recently: the 1-year correlation (0.18) runs below the 3-year figure (0.32). Over 5 years the correlation is 0.54, and the annualized covariance of weekly returns is 185.1 %².
Out of 13 assets tracked against BSY, QQQ lands near the bottom at #10. The last year tells two different stories: QQQ led by 57.2 percentage points, -30.9% for BSY against +26.3% for QQQ.
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.
BSY vs QQQ: side by side
| BSY (Bentley Systems, Incorporated) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -30.9% | +26.3% |
| 5-year return | -40.5% | +95.4% |
| Volatility (ann.) | 29.4% | 19.6% |
| Beta vs S&P 500 | 0.71 | 1.28 |
| Max drawdown (3Y) | -51.3% | -22.8% |
| Market cap | $11.4B | – |
| P/E (trailing) | 40.9 | – |
| Dividend yield | 0.76% | 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 | BSY | QQQ |
|---|---|---|
| 2022 | -23.3% | -32.6% |
| 2023 | +41.8% | +54.9% |
| 2024 | -10.1% | +25.6% |
| 2025 | -17.8% | +20.8% |
| 2026 | -1.1% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BSY and QQQ good diversifiers for each other?
A fair diversifier. At 0.32, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between BSY and QQQ?
As of 2026-08-27, the correlation of weekly returns between BSY and QQQ is 0.32 over 3 years, 0.18 over 1 year and 0.54 over 5 years.
Is QQQ a good diversifier for BSY?
A fair diversifier. At 0.32, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.32 mean?
On the −1 to +1 scale, 0.32 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/bsy-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bsy-vs-qqq/)
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Related comparisons
Hubs: BSY correlations · QQQ correlations
