SEI vs. ESE

Last updated Jun 9, 2026

SEI (Solaris Energy Infrastructure, Inc) and ESE (ESCO Technologies Inc.) are both stocks. SEI operates in Oil & Gas Equipment & Services (Energy), while ESE operates in Scientific & Technical Instruments (Technology). Over the past 5 years, SEI returned 52.77%/yr vs 26.97%/yr for ESE. At a 0.31 correlation, their price movements are largely independent.

Performance

SEI vs. ESE - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Solaris Energy Infrastructure, Inc (SEI) and ESCO Technologies Inc. (ESE). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SEI achieves a 57.74% return, which is significantly higher than ESE's 51.28% return.

SEI

• 1D: 4.06%
• 1M: -0.85%
• YTD: 57.74%
• 6M: 35.54%
• 1Y: 143.14%
• 3Y*: 111.29%
• 5Y*: 52.77%
• 10Y*: —

ESE

• 1D: 0.94%
• 1M: -2.55%
• YTD: 51.28%
• 6M: 49.13%
• 1Y: 60.70%
• 3Y*: 45.43%
• 5Y*: 26.97%
• 10Y*: 22.38%

*Multi-year figures are annualized to reflect compound growth (CAGR)

SEI vs. ESE - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SEI Solaris Energy Infrastructure, Inc	57.74%	62.29%	277.66%	-15.75%	57.46%	-15.55%	-38.09%	19.10%	-43.06%	85.37%
ESE ESCO Technologies Inc.	51.28%	46.96%	14.15%	34.13%	-2.30%	-12.59%	12.01%	41.00%	10.04%	5.71%

Correlation

The correlation between SEI and ESE is 0.23, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.23
Correlation (3Y) Calculated over the trailing 3-year period	0.31
Correlation (5Y) Calculated over the trailing 5-year period	0.28
Correlation (All Time) Calculated using the full available price history since May 15, 2017	0.31

Fundamentals

Market Cap SEI : $3.57B ESE : $7.65B
EPS SEI : $1.03 ESE : $11.89
PE Ratio SEI : 70.43 ESE : 24.84
PS Ratio SEI : 4.71 ESE : 6.13
PB Ratio SEI : 4.58 ESE : 4.77
Total Revenue (TTM) SEI : $692.11M ESE : $1.25B
Gross Profit (TTM) SEI : $235.28M ESE : $271.43M
EBITDA (TTM) SEI : $249.65M ESE : $238.72M

Return for Risk

SEI vs. ESE — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SEI

SEI Risk / Return Rank: 88
SEI Sharpe Ratio Rank: 89
SEI Sortino Ratio Rank: 83
SEI Omega Ratio Rank: 81
SEI Calmar Ratio Rank: 93
SEI Martin Ratio Rank: 92

ESE

ESE Risk / Return Rank: 87
ESE Sharpe Ratio Rank: 89
ESE Sortino Ratio Rank: 85
ESE Omega Ratio Rank: 84
ESE Calmar Ratio Rank: 89
ESE Martin Ratio Rank: 89

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SEI vs. ESE - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Solaris Energy Infrastructure, Inc (SEI) and ESCO Technologies Inc. (ESE). 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.

	SEI	ESE	Difference
Sharpe ratio: Return per unit of total volatility	1.96	1.99	-0.03
Sortino ratio: Return per unit of downside risk	2.45	2.63	-0.18
Omega ratio: Gain probability vs. loss probability	1.30	1.33	-0.02
Calmar ratio: Return relative to maximum drawdown	5.45	4.01	+1.44
Martin ratio: Return relative to average drawdown	13.72	10.69	+3.03
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SEI vs. ESE - Sharpe Ratio Comparison

The current SEI Sharpe Ratio is 1.96, which is comparable to the ESE Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of SEI and ESE, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SEI	ESE	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.96	1.99	-0.03
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.80	0.89	-0.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.74	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.43	0.42	+0.01

Drawdowns

SEI vs. ESE - Drawdown Comparison

The maximum SEI drawdown since its inception was -79.49%, which is greater than ESE's maximum drawdown of -58.54%. Use the drawdown chart below to compare losses from any high point for SEI and ESE.

Drawdown Indicators

	SEI	ESE	Difference
Max Drawdown Largest peak-to-trough decline	-79.49%	-58.54%	-20.95%
Max Drawdown (1Y) Largest decline over 1 year	-26.43%	-15.22%	-11.21%
Max Drawdown (3Y) Largest decline over 3 years	-55.37%	-17.52%	-37.85%
Max Drawdown (5Y) Largest decline over 5 years	-55.37%	-36.88%	-18.49%
Max Drawdown (10Y) Largest decline over 10 years	—	-45.97%	—
Current Drawdown Current decline from peak	-7.95%	-12.95%	+5.00%
Average Drawdown Average peak-to-trough decline	-38.65%	-20.25%	-18.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.55%	5.70%	+4.85%

Volatility

SEI vs. ESE - Volatility Comparison

Solaris Energy Infrastructure, Inc (SEI) has a higher volatility of 17.54% compared to ESCO Technologies Inc. (ESE) at 11.76%. This indicates that SEI's price experiences larger fluctuations and is considered to be riskier than ESE based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEI	ESE	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.54%	11.76%	+5.78%
Volatility (6M) Calculated over the trailing 6-month period	51.78%	25.28%	+26.50%
Volatility (1Y) Calculated over the trailing 1-year period	73.80%	30.78%	+43.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	66.56%	30.37%	+36.19%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	62.17%	30.51%	+31.66%

Dividends

SEI vs. ESE - Dividend Comparison

SEI's dividend yield for the trailing twelve months is around 0.66%, more than ESE's 0.11% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ESE ESCO Technologies Inc.	0.11%	0.16%	0.24%	0.27%	0.37%	0.27%	0.31%	0.43%	0.49%	0.40%	0.56%	0.89%
SEI Solaris Energy Infrastructure, Inc	0.66%	1.04%	1.67%	5.65%	4.23%	6.41%	5.16%	2.89%	0.83%	0.00%	0.00%	0.00%

Financials

SEI vs. ESE - Profitability Comparison

The chart below illustrates the profitability comparison between Solaris Energy Infrastructure, Inc and ESCO Technologies Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

SEI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 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%.

ESE - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, ESCO Technologies Inc. reported a gross profit of -119.92M and revenue of 309.34M. Therefore, the gross margin over that period was -38.8%.

SEI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 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%.

ESE - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, ESCO Technologies Inc. reported an operating income of 23.86M and revenue of 309.34M, resulting in an operating margin of 7.7%.

SEI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 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%.

ESE - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, ESCO Technologies Inc. reported a net income of 34.73M and revenue of 309.34M, resulting in a net margin of 11.2%.

Frequently Asked Questions

Can I hold both SEI and ESE in my portfolio?

SEI and ESE have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SEI or ESE?

SEI has higher volatility (17.54%) compared to ESE (11.76%). In terms of maximum drawdown, SEI dropped -79.49% vs ESE's -58.54%.

Which has better risk-adjusted returns?

ESE currently has the higher Sharpe Ratio (1.99 vs 1.96), 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.