GMEX vs NSSC: Correlation
How closely do GMEX ROBOTICS CORPORATION - Class A (GMEX) and NAPCO Security Technologies, Inc. (NSSC) trade together? Their weekly returns over three years give a correlation of 0.34, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GMEX and NSSC?
Over the past 3 years, GMEX and NSSC moved with a correlation of 0.34, which is moderate. The past 12 months show a weaker link (0.23) than the 3-year average (0.34). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 3456.0 %².
NSSC is one of the assets that tracks GMEX most closely: it ranks #2 out of the 17 assets we track against GMEX. The last year tells two different stories: NSSC led by 93.2 percentage points, -100.0% for GMEX against -6.8% for NSSC. Note the risk asymmetry: GMEX runs 3.8 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
GMEX vs NSSC: side by side
| GMEX (GMEX ROBOTICS CORPORATION - Class A) | NSSC (NAPCO Security Technologies, Inc.) | |
|---|---|---|
| 1-year return | -100.0% | -6.8% |
| 5-year return | n/a | +91.1% |
| Volatility (ann.) | 195.3% | 51.3% |
| Beta vs S&P 500 | 2.43 | 1.46 |
| Max drawdown (3Y) | -100.0% | -65.4% |
| Market cap | – | $1.3B |
| P/E (trailing) | – | 29.6 |
| Dividend yield | 4710.28% | 1.62% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GMEX | NSSC |
|---|---|---|
| 2022 | – | +10.0% |
| 2023 | – | +25.6% |
| 2024 | +471.2% | +5.0% |
| 2025 | -99.6% | +19.2% |
| 2026 | -99.6% | -14.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GMEX and NSSC good diversifiers for each other?
A fair diversifier. At 0.34, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between GMEX and NSSC?
As of 2026-08-27, the correlation of weekly returns between GMEX and NSSC is 0.34 over 3 years, 0.23 over 1 year and n/a over 5 years.
Is NSSC a good diversifier for GMEX?
A fair diversifier. At 0.34, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.34 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.
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Related comparisons
Hubs: GMEX correlations · NSSC correlations
