ENS vs. ESP

Last updated Jun 3, 2026

ENS (EnerSys) and ESP (Espey Mfg. & Electronics Corp.) are both stocks. Both operate in the Electrical Equipment & Parts industry within the Industrials sector. Over the past 10 years, ENS returned 15.00%/yr vs 12.34%/yr for ESP. At a 0.12 correlation, their price movements are largely independent.

Performance

ENS vs. ESP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in EnerSys (ENS) and Espey Mfg. & Electronics Corp. (ESP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ENS achieves a 62.11% return, which is significantly higher than ESP's 23.29% return. Over the past 10 years, ENS has outperformed ESP with an annualized return of 15.00%, while ESP has yielded a comparatively lower 12.34% annualized return.

ENS

• 1D: 4.22%
• 1M: 11.83%
• YTD: 62.11%
• 6M: 64.67%
• 1Y: 191.85%
• 3Y*: 33.21%
• 5Y*: 21.08%
• 10Y*: 15.00%

ESP

• 1D: 0.42%
• 1M: -18.52%
• YTD: 23.29%
• 6M: 49.27%
• 1Y: 63.67%
• 3Y*: 56.43%
• 5Y*: 34.13%
• 10Y*: 12.34%

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

ENS vs. ESP - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ENS EnerSys	62.11%	60.28%	-7.57%	37.90%	-5.64%	-4.04%	12.19%	-2.57%	12.46%	-9.97%
ESP Espey Mfg. & Electronics Corp.	23.29%	63.34%	66.83%	35.47%	-0.07%	-24.87%	-7.86%	-9.61%	11.35%	-3.99%

Correlation

The correlation between ENS and ESP is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.18
Correlation (5Y) Calculated over the trailing 5-year period	0.15
Correlation (10Y) Calculated over the trailing 10-year period	0.15
Correlation (All Time) Calculated using the full available price history since Aug 3, 2004	0.12

Fundamentals

Market Cap ENS : $9.06B ESP : $166.95M
EPS ENS : $7.67 ESP : $3.79
PE Ratio ENS : 30.97 ESP : 15.27
PEG Ratio ENS : 1.20 ESP : 0.21
PS Ratio ENS : 2.42 ESP : 3.89
PB Ratio ENS : 4.76 ESP : 2.96
Total Revenue (TTM) ENS : $3.75B ESP : $42.25M
Gross Profit (TTM) ENS : $1.10B ESP : $15.43M
EBITDA (TTM) ENS : $426.46M ESP : $11.61M

Return for Risk

ENS vs. ESP — Risk / Return Rank

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

ENS

ENS Risk / Return Rank: 98
ENS Sharpe Ratio Rank: 99
ENS Sortino Ratio Rank: 97
ENS Omega Ratio Rank: 97
ENS Calmar Ratio Rank: 97
ENS Martin Ratio Rank: 98

ESP

ESP Risk / Return Rank: 73
ESP Sharpe Ratio Rank: 76
ESP Sortino Ratio Rank: 69
ESP Omega Ratio Rank: 69
ESP Calmar Ratio Rank: 76
ESP Martin Ratio Rank: 73

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.

ENS vs. ESP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for EnerSys (ENS) and Espey Mfg. & Electronics Corp. (ESP). 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.

	ENS	ESP	Difference
Sharpe ratio Return per unit of total volatility	5.25	1.23	+4.02
Sortino ratio Return per unit of downside risk	4.94	1.72	+3.22
Omega ratio Gain probability vs. loss probability	1.73	1.23	+0.50
Calmar ratio Return relative to maximum drawdown	10.18	2.21	+7.97
Martin ratio Return relative to average drawdown	37.03	4.55	+32.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ENS vs. ESP - Sharpe Ratio Comparison

The current ENS Sharpe Ratio is 5.25, which is higher than the ESP Sharpe Ratio of 1.23. The chart below compares the historical Sharpe Ratios of ENS and ESP, 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

	ENS	ESP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.25	1.23	+4.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.61	0.80	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.41	0.33	+0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.36	+0.01

Drawdowns

ENS vs. ESP - Drawdown Comparison

The maximum ENS drawdown since its inception was -83.95%, which is greater than ESP's maximum drawdown of -54.43%. Use the drawdown chart below to compare losses from any high point for ENS and ESP.

Drawdown Indicators

	ENS	ESP	Difference
Max Drawdown Largest peak-to-trough decline	-83.95%	-54.43%	-29.52%
Max Drawdown (1Y) Largest decline over 1 year	-18.32%	-29.09%	+10.77%
Max Drawdown (3Y) Largest decline over 3 years	-29.32%	-29.09%	-0.23%
Max Drawdown (5Y) Largest decline over 5 years	-41.77%	-33.59%	-8.18%
Max Drawdown (10Y) Largest decline over 10 years	-56.27%	-54.43%	-1.84%
Current Drawdown Current decline from peak	-2.40%	-19.90%	+17.50%
Average Drawdown Average peak-to-trough decline	-18.01%	-15.01%	-3.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.03%	14.14%	-9.11%

Volatility

ENS vs. ESP - Volatility Comparison

EnerSys (ENS) has a higher volatility of 16.86% compared to Espey Mfg. & Electronics Corp. (ESP) at 15.03%. This indicates that ENS's price experiences larger fluctuations and is considered to be riskier than ESP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ENS	ESP	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.86%	15.03%	+1.83%
Volatility (6M) Calculated over the trailing 6-month period	31.39%	37.98%	-6.59%
Volatility (1Y) Calculated over the trailing 1-year period	36.83%	51.90%	-15.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.50%	42.82%	-8.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	36.67%	38.00%	-1.33%

Dividends

ENS vs. ESP - Dividend Comparison

ENS's dividend yield for the trailing twelve months is around 0.43%, less than ESP's 3.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ENS EnerSys	0.43%	0.68%	1.01%	0.79%	0.95%	0.89%	0.84%	0.94%	0.90%	1.01%	0.90%	1.25%
ESP Espey Mfg. & Electronics Corp.	3.03%	3.71%	2.90%	2.67%	0.00%	0.00%	5.29%	4.63%	8.03%	4.17%	3.84%	3.88%

Financials

ENS vs. ESP - Profitability Comparison

The chart below illustrates the profitability comparison between EnerSys and Espey Mfg. & Electronics Corp. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

ENS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, EnerSys reported a gross profit of 290.86M and revenue of 988.01M. Therefore, the gross margin over that period was 29.4%.

ESP - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Espey Mfg. & Electronics Corp. reported a gross profit of 4.23M and revenue of 11.42M. Therefore, the gross margin over that period was 37.0%.

ENS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, EnerSys reported an operating income of 123.75M and revenue of 988.01M, resulting in an operating margin of 12.5%.

ESP - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Espey Mfg. & Electronics Corp. reported an operating income of 2.98M and revenue of 11.42M, resulting in an operating margin of 26.1%.

ENS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, EnerSys reported a net income of 77.20M and revenue of 988.01M, resulting in a net margin of 7.8%.

ESP - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Espey Mfg. & Electronics Corp. reported a net income of 2.86M and revenue of 11.42M, resulting in a net margin of 25.1%.

Frequently Asked Questions

Can I hold both ENS and ESP in my portfolio?

ENS and ESP have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ENS or ESP?

ENS has higher volatility (16.86%) compared to ESP (15.03%). In terms of maximum drawdown, ENS dropped -83.95% vs ESP's -54.43%.

Which has better risk-adjusted returns?

ENS currently has the higher Sharpe Ratio (5.25 vs 1.23), 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.