QLYS vs TENB: Correlation
Qualys, Inc. (QLYS) and Tenable Holdings, Inc. (TENB) show a strong relationship: their 3-year correlation of weekly returns is 0.61.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QLYS and TENB?
Over the past 3 years, QLYS and TENB moved with a correlation of 0.61, which is strong. The relationship has been stable: the 1-year correlation (0.71) sits close to the 3-year figure. Over 5 years the correlation is 0.65, and the annualized covariance of weekly returns is 1097.9 %².
TENB is one of the assets that tracks QLYS most closely: it ranks #1 out of the 13 assets we track against QLYS. Correlation aside, the last 12 months split them widely, with QLYS ahead by 17.0 points (+40.0% versus +23.0%).
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.
QLYS vs TENB: side by side
| QLYS (Qualys, Inc.) | TENB (Tenable Holdings, Inc.) | |
|---|---|---|
| 1-year return | +40.0% | +23.0% |
| 5-year return | +62.5% | -16.1% |
| Volatility (ann.) | 43.5% | 41.5% |
| Beta vs S&P 500 | 1.09 | 1.04 |
| Max drawdown (3Y) | -63.0% | -69.1% |
| Market cap | $6.5B | $4.1B |
| P/E (trailing) | 30.7 | 537.4 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | QLYS | TENB |
|---|---|---|
| 2022 | -18.2% | -30.7% |
| 2023 | +74.9% | +20.7% |
| 2024 | -28.6% | -14.5% |
| 2025 | -5.2% | -40.2% |
| 2026 | +41.9% | +59.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QLYS and TENB good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between QLYS and TENB?
The QLYS/TENB correlation stands at 0.61 on a 3-year window (1 year: 0.71, 5 years: 0.65), computed from weekly returns as of 2026-08-27.
Is TENB a good diversifier for QLYS?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/qlys-vs-tenb.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/qlys-vs-tenb/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: QLYS correlations · TENB correlations
