BOXL vs NSYS: Correlation
How closely do Boxlight Corporation (BOXL) and Nortech Systems Incorporated (NSYS) trade together? Their weekly returns over three years give a correlation of -0.19, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BOXL and NSYS?
On 3 years of weekly data the BOXL/NSYS correlation comes out at -0.19, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.33 versus -0.19 over 3 years. The 5-year figure is -0.09, and annualized covariance runs at -1319.0 %².
Among the 10 assets we track against BOXL, NSYS sits near the bottom by co-movement, at rank #8. The last year tells two different stories: NSYS led by 127.4 percentage points, -90.8% for BOXL against +36.6% for NSYS. Note the risk asymmetry: BOXL runs 2.5 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.
BOXL vs NSYS: side by side
| BOXL (Boxlight Corporation) | NSYS (Nortech Systems Incorporated) | |
|---|---|---|
| 1-year return | -90.8% | +36.6% |
| 5-year return | -99.8% | -4.7% |
| Volatility (ann.) | 131.7% | 52.5% |
| Beta vs S&P 500 | 1.16 | 0.23 |
| Max drawdown (3Y) | -99.3% | -62.0% |
| Market cap | – | – |
| P/E (trailing) | – | 34.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BOXL | NSYS |
|---|---|---|
| 2022 | -77.5% | +18.4% |
| 2023 | -57.0% | -23.1% |
| 2024 | -64.3% | +9.2% |
| 2025 | -85.2% | -27.8% |
| 2026 | -40.2% | +65.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BOXL and NSYS good diversifiers for each other?
Yes. With a correlation of -0.19, BOXL and NSYS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BOXL and NSYS?
Using weekly returns as of 2026-08-27: -0.19 over 3 years, with -0.33 over the last year and -0.09 over 5 years.
Is NSYS a good diversifier for BOXL?
Yes. With a correlation of -0.19, BOXL and NSYS have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.19 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/boxl-vs-nsys.json
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Related comparisons
Hubs: BOXL correlations · NSYS correlations
