ENS vs. AYI
ENS (EnerSys) and AYI (Acuity Brands, Inc.) are both stocks. Both operate in the Electrical Equipment & Parts industry within the Industrials sector. Over the past 10 years, ENS returned 15.77%/yr vs 3.02%/yr for AYI. A 0.50 correlation means they provide meaningful diversification when combined.
Performance
ENS vs. AYI - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, ENS achieves a 59.18% return, which is significantly higher than AYI's -10.54% return. Over the past 10 years, ENS has outperformed AYI with an annualized return of 15.77%, while AYI has yielded a comparatively lower 3.02% annualized return.
ENS
- 1D
- 2.19%
- 1M
- 0.42%
- YTD
- 59.18%
- 6M
- 57.02%
- 1Y
- 181.94%
- 3Y*
- 32.69%
- 5Y*
- 20.54%
- 10Y*
- 15.77%
AYI
- 1D
- 1.28%
- 1M
- 11.85%
- YTD
- -10.54%
- 6M
- -12.44%
- 1Y
- 18.08%
- 3Y*
- 26.45%
- 5Y*
- 11.25%
- 10Y*
- 3.02%
ENS vs. AYI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ENS EnerSys | 59.18% | 60.28% | -7.57% | 37.90% | -5.64% | -4.04% | 12.19% | -2.57% | 12.46% | -9.97% |
AYI Acuity Brands, Inc. | -10.54% | 23.53% | 42.95% | 24.06% | -21.55% | 75.42% | -11.79% | 20.54% | -34.44% | -23.55% |
Correlation
The correlation between ENS and AYI is 0.50, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.50 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.51 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.55 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.53 |
Correlation (All Time) Calculated using the full available price history since Aug 2, 2004 | 0.50 |
The correlation between ENS and AYI has been stable across timeframes, ranging from 0.50 to 0.55 - a consistent structural relationship.
Fundamentals
ENS:
$8.89B
AYI:
$10.09B
ENS:
$7.67
AYI:
$13.65
ENS:
30.38
AYI:
23.57
ENS:
1.17
AYI:
1.90
ENS:
2.38
AYI:
2.21
ENS:
4.66
AYI:
3.55
ENS:
$3.75B
AYI:
$4.59B
ENS:
$1.10B
AYI:
$2.24B
ENS:
$426.46M
AYI:
$700.10M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
ENS vs. AYI — Risk / Return Rank
ENS
AYI
ENS vs. AYI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for EnerSys (ENS) and Acuity Brands, Inc. (AYI). 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.
| ENS | AYI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +4.40 | ||
| Sortino ratioReturn per unit of downside risk | +3.80 | ||
| Omega ratioGain probability vs. loss probability | 1.69 | 1.12 | +0.57 |
| Calmar ratioReturn relative to maximum drawdown | 10.00 | 0.58 | +9.42 |
| Martin ratioReturn relative to average drawdown | 35.74 | 1.21 | +34.53 |
Loading charts...
Drawdowns
ENS vs. AYI - Drawdown Comparison
The maximum ENS drawdown since its inception was -83.95%, which is greater than AYI's maximum drawdown of -74.22%. Use the drawdown chart below to compare losses from any high point for ENS and AYI.
Loading charts...
Drawdown Indicators
| ENS | AYI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -83.95% | -74.22% | -9.73% |
Max Drawdown (1Y)Largest decline over 1 year | -18.32% | -31.52% | +13.20% |
Max Drawdown (3Y)Largest decline over 3 years | -29.32% | -33.72% | +4.40% |
Max Drawdown (5Y)Largest decline over 5 years | -41.77% | -34.64% | -7.13% |
Max Drawdown (10Y)Largest decline over 10 years | -56.27% | -74.22% | +17.95% |
Current DrawdownCurrent decline from peak | -4.16% | -14.49% | +10.33% |
Average DrawdownAverage peak-to-trough decline | -17.98% | -23.15% | +5.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.11% | 14.94% | -9.83% |
Volatility
ENS vs. AYI - Volatility Comparison
EnerSys (ENS) has a higher volatility of 15.63% compared to Acuity Brands, Inc. (AYI) at 10.71%. This indicates that ENS's price experiences larger fluctuations and is considered to be riskier than AYI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| ENS | AYI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 15.63% | 10.71% | +4.92% |
Volatility (6M)Calculated over the trailing 6-month period | 31.74% | 27.26% | +4.48% |
Volatility (1Y)Calculated over the trailing 1-year period | 37.06% | 32.94% | +4.12% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 34.55% | 31.88% | +2.67% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 36.70% | 36.94% | -0.24% |
Dividends
ENS vs. AYI - Dividend Comparison
ENS's dividend yield for the trailing twelve months is around 0.45%, more than AYI's 0.23% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AYI Acuity Brands, Inc. | 0.23% | 0.19% | 0.21% | 0.25% | 0.31% | 0.25% | 0.43% | 0.38% | 0.45% | 0.30% | 0.23% | 0.22% |
ENS EnerSys | 0.45% | 0.68% | 1.01% | 0.79% | 0.95% | 0.89% | 0.84% | 0.94% | 0.90% | 1.01% | 0.90% | 1.25% |
Financials
ENS vs. AYI - Financials Comparison
This section allows you to compare key financial metrics between EnerSys and Acuity Brands, 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
ENS vs. AYI - Profitability Comparison
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%.
AYI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Acuity Brands, Inc. reported a gross profit of 520.40M and revenue of 1.06B. Therefore, the gross margin over that period was 49.3%.
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%.
AYI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Acuity Brands, Inc. reported an operating income of 133.00M and revenue of 1.06B, resulting in an operating margin of 12.6%.
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%.
AYI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Acuity Brands, Inc. reported a net income of 96.80M and revenue of 1.06B, resulting in a net margin of 9.2%.
Frequently Asked Questions
ENS and AYI have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ENS has higher volatility (15.63%) compared to AYI (10.71%). In terms of maximum drawdown, ENS dropped -83.95% vs AYI's -74.22%.
ENS currently has the higher Sharpe Ratio (4.95 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.
Find the right allocation for ENS and AYI
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer