NTCT vs RDWR: Correlation
Measured on weekly returns over the past three years, NetScout Systems, Inc. (NTCT) and Radware Ltd. (RDWR) carry a correlation of 0.43, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NTCT and RDWR?
On 3 years of weekly data the NTCT/RDWR correlation comes out at 0.43, moderate. Little has changed lately, as the 1-year reading of 0.41 lands near the 3-year figure. The 5-year figure is 0.32, and annualized covariance runs at 482.9 %².
Within NTCT's tracked universe of 13 assets, RDWR comes in at #7 by 3-year correlation. Correlation aside, the last 12 months split them widely, with NTCT ahead by 44.5 points (+59.4% versus +14.9%).
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.
NTCT vs RDWR: side by side
| NTCT (NetScout Systems, Inc.) | RDWR (Radware Ltd.) | |
|---|---|---|
| 1-year return | +59.4% | +14.9% |
| 5-year return | +42.7% | -13.5% |
| Volatility (ann.) | 30.4% | 36.7% |
| Beta vs S&P 500 | 0.85 | 0.85 |
| Max drawdown (3Y) | -38.4% | -29.4% |
| Market cap | $2.9B | $1.2B |
| P/E (trailing) | 23.5 | 75.8 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NTCT | RDWR |
|---|---|---|
| 2022 | -1.7% | -52.6% |
| 2023 | -32.5% | -15.5% |
| 2024 | -1.3% | +35.1% |
| 2025 | +24.9% | +6.9% |
| 2026 | +45.8% | +22.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NTCT and RDWR good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between NTCT and RDWR?
As of 2026-08-27, the correlation of weekly returns between NTCT and RDWR is 0.43 over 3 years, 0.41 over 1 year and 0.32 over 5 years.
Is RDWR a good diversifier for NTCT?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.43 mean?
A reading of 0.43 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/ntct-vs-rdwr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ntct-vs-rdwr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: NTCT correlations · RDWR correlations
