NTCT vs QQQ: Correlation
Measured on weekly returns over the past three years, NetScout Systems, Inc. (NTCT) and Invesco QQQ Trust (QQQ) carry a correlation of 0.37, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NTCT and QQQ?
On 3 years of weekly data the NTCT/QQQ correlation comes out at 0.37, moderate. Recent behaviour matches the longer record: 0.29 over 1 year against 0.37 over 3. The 5-year figure is 0.34, and annualized covariance runs at 220.0 %².
Among the 13 assets we track against NTCT, QQQ sits near the bottom by co-movement, at rank #9. Their recent paths diverged sharply: over the last 12 months NTCT outperformed by 33.1 percentage points (+59.4% for NTCT against +26.3% for QQQ). One caveat on sizing: NTCT is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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 QQQ: side by side
| NTCT (NetScout Systems, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +59.4% | +26.3% |
| 5-year return | +42.7% | +95.4% |
| Volatility (ann.) | 30.4% | 19.6% |
| Beta vs S&P 500 | 0.85 | 1.28 |
| Max drawdown (3Y) | -38.4% | -22.8% |
| Market cap | $2.9B | – |
| P/E (trailing) | 23.5 | – |
| 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 | NTCT | QQQ |
|---|---|---|
| 2022 | -1.7% | -32.6% |
| 2023 | -32.5% | +54.9% |
| 2024 | -1.3% | +25.6% |
| 2025 | +24.9% | +20.8% |
| 2026 | +45.8% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NTCT and QQQ good diversifiers for each other?
A fair diversifier. At 0.37, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between NTCT and QQQ?
Using weekly returns as of 2026-08-27: 0.37 over 3 years, with 0.29 over the last year and 0.34 over 5 years.
Is QQQ a good diversifier for NTCT?
A fair diversifier. At 0.37, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.37 mean?
On the −1 to +1 scale, 0.37 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.
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Related comparisons
Hubs: NTCT correlations · QQQ correlations
