GME vs NSYS: Correlation
GameStop Corporation (GME) and Nortech Systems Incorporated (NSYS) show a negative relationship: their 3-year correlation of weekly returns is -0.35.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GME and NSYS?
On 3 years of weekly data the GME/NSYS correlation comes out at -0.35, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.10) runs above the 3-year figure (-0.35). The 5-year figure is -0.19, and annualized covariance runs at -1052.8 %².
NSYS is close to the least connected end of GME's tracked universe, ranking #10 of 10. Correlation aside, the last 12 months split them widely, with NSYS ahead by 55.5 points (-18.9% versus +36.6%).
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.
GME vs NSYS: side by side
| GME (GameStop Corporation) | NSYS (Nortech Systems Incorporated) | |
|---|---|---|
| 1-year return | -18.9% | +36.6% |
| 5-year return | -65.1% | -4.7% |
| Volatility (ann.) | 57.6% | 52.5% |
| Beta vs S&P 500 | 0.61 | 0.23 |
| Max drawdown (3Y) | -63.2% | -62.0% |
| Market cap | $8.2B | – |
| P/E (trailing) | 13.4 | 34.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GME | NSYS |
|---|---|---|
| 2022 | -50.2% | +18.4% |
| 2023 | -5.0% | -23.1% |
| 2024 | +78.8% | +9.2% |
| 2025 | -35.9% | -27.8% |
| 2026 | -9.1% | +65.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GME and NSYS good diversifiers for each other?
Yes. With a correlation of -0.35, GME and NSYS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between GME and NSYS?
Using weekly returns as of 2026-08-27: -0.35 over 3 years, with -0.10 over the last year and -0.19 over 5 years.
Is NSYS a good diversifier for GME?
Yes. With a correlation of -0.35, GME and NSYS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.35 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/gme-vs-nsys.json
Markdown for the live badge, attribution link included:
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Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: GME correlations · NSYS correlations
