NSSC vs. SEI
NSSC (Napco Security Technologies, Inc.) and SEI (Solaris Energy Infrastructure, Inc) are both stocks. NSSC operates in Security & Protection Services (Industrials), while SEI operates in Oil & Gas Equipment & Services (Energy). Over the past 5 years, NSSC returned 16.97%/yr vs 47.96%/yr for SEI. Their 0.20 correlation means their historical movements had little consistent relationship.
Performance
NSSC vs. SEI - Performance Comparison
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Returns By Period
In the year-to-date period, NSSC achieves a -10.40% return, which is significantly lower than SEI's 12.30% return.
NSSC
- 1D
- 1.95%
- 1M
- -2.06%
- 6M
- 1.29%
- YTD
- -10.40%
- 1Y
- 23.20%
- 3Y*
- 1.14%
- 5Y*
- 16.97%
- 10Y*
- 26.68%
- ALL TIME*
- 12.65%
SEI
- 1D
- 0.25%
- 1M
- -29.98%
- 6M
- -6.46%
- YTD
- 12.30%
- 1Y
- 58.96%
- 3Y*
- 73.99%
- 5Y*
- 47.96%
- 10Y*
- —
- ALL TIME*
- 20.73%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $9.49M | $10.86M | $15.91M | |
| $200.05M | $228.81M | $190.63M |
NSSC vs. SEI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
NSSC Napco Security Technologies, Inc. | -10.40% | 19.22% | 4.97% | 25.59% | 9.96% | 90.62% | -10.79% | 86.60% | 80.00% | -5.91% |
SEI Solaris Energy Infrastructure, Inc | 12.30% | 62.29% | 277.66% | -15.75% | 57.46% | -15.55% | -38.09% | 19.10% | -43.06% | 75.35% |
Correlation
The correlation between NSSC and SEI is 0.17, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.17 |
Correlation (3Y) Balances recent behavior with more history. | 0.20 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.18 |
Correlation (All Time) Calculated using the full available price history since May 12, 2017 | 0.20 |
Fundamentals
NSSC:
$1.32B
SEI:
$3.15B
NSSC:
$1.03
SEI:
$0.97
NSSC:
36.01
SEI:
52.86
NSSC:
6.73
SEI:
3.54
NSSC:
7.44
SEI:
3.26
NSSC:
$197.23M
SEI:
$692.11M
NSSC:
$112.37M
SEI:
$235.28M
NSSC:
$42.52M
SEI:
$249.65M
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Return for Risk
NSSC vs. SEI — Risk / Return Rank
NSSC
SEI
NSSC vs. SEI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Napco Security Technologies, Inc. (NSSC) and Solaris Energy Infrastructure, Inc (SEI). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| NSSC | SEI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.21 | ||
| Sortino ratioReturn per unit of downside risk | -0.46 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.18 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 0.91 | 1.24 | -0.34 |
| Martin ratioReturn relative to average drawdown | 1.90 | 4.72 | -2.82 |
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Drawdowns
NSSC vs. SEI - Drawdown Comparison
The maximum NSSC drawdown since its inception was -93.20%, which is greater than SEI's maximum drawdown of -79.49%. Use the drawdown chart below to compare losses from any high point for NSSC and SEI.
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Drawdown Indicators
| NSSC | SEI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -93.20% | -79.49% | -13.71% |
Max Drawdown (1Y)Largest decline over 1 year | -25.72% | -47.61% | +21.89% |
Max Drawdown (3Y)Largest decline over 3 years | -65.43% | -55.37% | -10.06% |
Max Drawdown (5Y)Largest decline over 5 years | -65.43% | -55.37% | -10.06% |
Max Drawdown (10Y)Largest decline over 10 years | -65.43% | — | — |
Current DrawdownCurrent decline from peak | -34.07% | -37.97% | +3.90% |
Average DrawdownAverage peak-to-trough decline | -38.18% | -38.32% | +0.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 12.21% | 12.78% | -0.57% |
Volatility
NSSC vs. SEI - Volatility Comparison
The current volatility for Napco Security Technologies, Inc. (NSSC) is 9.25%, while Solaris Energy Infrastructure, Inc (SEI) has a volatility of 30.50%. This indicates that NSSC experiences smaller price fluctuations and is considered to be less risky than SEI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| NSSC | SEI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.25% | 30.50% | -21.25% |
Volatility (6M)Calculated over the trailing 6-month period | 32.00% | 57.43% | -25.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 42.21% | 77.63% | -35.42% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 51.08% | 68.06% | -16.98% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 49.60% | 62.88% | -13.28% |
Dividends
NSSC vs. SEI - Dividend Comparison
NSSC's dividend yield for the trailing twelve months is around 1.56%, more than SEI's 0.93% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|---|
NSSC Napco Security Technologies, Inc. | 1.56% | 1.31% | 1.27% | 0.65% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SEI Solaris Energy Infrastructure, Inc | 0.93% | 1.04% | 1.67% | 5.65% | 4.23% | 6.41% | 5.16% | 2.89% | 0.83% |
Financials
NSSC vs. SEI - Financials Comparison
This section allows you to compare key financial metrics between Napco Security Technologies, Inc. and Solaris Energy Infrastructure, Inc. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
NSSC vs. SEI - Profitability Comparison
NSSC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Napco Security Technologies, Inc. reported a gross profit of 29.49M and revenue of 49.17M. Therefore, the gross margin over that period was 60.0%.
SEI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Solaris Energy Infrastructure, Inc reported a gross profit of 72.72M and revenue of 196.24M. Therefore, the gross margin over that period was 37.1%.
NSSC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Napco Security Technologies, Inc. reported an operating income of -1.19M and revenue of 49.17M, resulting in an operating margin of -2.4%.
SEI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Solaris Energy Infrastructure, Inc reported an operating income of 50.56M and revenue of 196.24M, resulting in an operating margin of 25.8%.
NSSC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Napco Security Technologies, Inc. reported a net income of -408.00K and revenue of 49.17M, resulting in a net margin of -0.8%.
SEI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Solaris Energy Infrastructure, Inc reported a net income of 21.44M and revenue of 196.24M, resulting in a net margin of 10.9%.
Frequently Asked Questions
NSSC and SEI have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SEI has higher volatility (30.50%) compared to NSSC (9.25%). In terms of maximum drawdown, NSSC dropped -93.20% vs SEI's -79.49%.
SEI currently has the higher Sharpe Ratio (0.76 vs 0.55), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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