ENS vs. QQQ

Last updated Jun 3, 2026

ENS (EnerSys) is a stock, while QQQ (Invesco QQQ ETF) is Nasdaq-100 fund tracking the NASDAQ-100 Index. Over the past 10 years, ENS returned 15.00%/yr vs 21.97%/yr for QQQ. A 0.52 correlation means they provide meaningful diversification when combined.

Performance

ENS vs. QQQ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in EnerSys (ENS) and Invesco QQQ ETF (QQQ). 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 QQQ's 21.62% return. Over the past 10 years, ENS has underperformed QQQ with an annualized return of 15.00%, while QQQ has yielded a comparatively higher 21.97% 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%

QQQ

• 1D: 0.46%
• 1M: 10.68%
• YTD: 21.62%
• 6M: 20.27%
• 1Y: 43.30%
• 3Y*: 28.89%
• 5Y*: 18.43%
• 10Y*: 21.97%

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

ENS vs. QQQ - 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%
QQQ Invesco QQQ ETF	21.62%	20.77%	25.58%	54.86%	-32.58%	27.42%	48.62%	38.96%	-0.13%	32.66%

Correlation

The correlation between ENS and QQQ is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.44
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (10Y) Calculated over the trailing 10-year period	0.49
Correlation (All Time) Calculated using the full available price history since Aug 3, 2004	0.52

The correlation between ENS and QQQ has been stable across timeframes, ranging from 0.44 to 0.53 - a consistent structural relationship.

Return for Risk

ENS vs. QQQ — 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

QQQ

QQQ Risk / Return Rank: 77
QQQ Sharpe Ratio Rank: 83
QQQ Sortino Ratio Rank: 78
QQQ Omega Ratio Rank: 77
QQQ Calmar Ratio Rank: 73
QQQ Martin Ratio Rank: 74

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. QQQ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for EnerSys (ENS) and Invesco QQQ ETF (QQQ). 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	QQQ	Difference
Sharpe ratio Return per unit of total volatility	5.25	2.73	+2.52
Sortino ratio Return per unit of downside risk	4.94	3.55	+1.39
Omega ratio Gain probability vs. loss probability	1.73	1.47	+0.26
Calmar ratio Return relative to maximum drawdown	10.18	3.71	+6.46
Martin ratio Return relative to average drawdown	37.03	14.30	+22.74
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. QQQ - Sharpe Ratio Comparison

The current ENS Sharpe Ratio is 5.25, which is higher than the QQQ Sharpe Ratio of 2.73. The chart below compares the historical Sharpe Ratios of ENS and QQQ, 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	QQQ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.25	2.73	+2.52
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.61	0.83	-0.21
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.41	0.99	-0.58
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.41	-0.05

Drawdowns

ENS vs. QQQ - Drawdown Comparison

The maximum ENS drawdown since its inception was -83.95%, roughly equal to the maximum QQQ drawdown of -82.97%. Use the drawdown chart below to compare losses from any high point for ENS and QQQ.

Drawdown Indicators

	ENS	QQQ	Difference
Max Drawdown Largest peak-to-trough decline	-83.95%	-82.97%	-0.98%
Max Drawdown (1Y) Largest decline over 1 year	-18.32%	-11.96%	-6.36%
Max Drawdown (3Y) Largest decline over 3 years	-29.32%	-22.77%	-6.55%
Max Drawdown (5Y) Largest decline over 5 years	-41.77%	-35.12%	-6.65%
Max Drawdown (10Y) Largest decline over 10 years	-56.27%	-35.12%	-21.15%
Current Drawdown Current decline from peak	-2.40%	0.00%	-2.40%
Average Drawdown Average peak-to-trough decline	-18.01%	-32.79%	+14.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.03%	3.11%	+1.92%

Volatility

ENS vs. QQQ - Volatility Comparison

EnerSys (ENS) has a higher volatility of 16.86% compared to Invesco QQQ ETF (QQQ) at 4.48%. This indicates that ENS's price experiences larger fluctuations and is considered to be riskier than QQQ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ENS	QQQ	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.86%	4.48%	+12.38%
Volatility (6M) Calculated over the trailing 6-month period	31.39%	12.11%	+19.28%
Volatility (1Y) Calculated over the trailing 1-year period	36.83%	15.95%	+20.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.50%	22.39%	+12.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	36.67%	22.30%	+14.37%

Dividends

ENS vs. QQQ - Dividend Comparison

ENS's dividend yield for the trailing twelve months is around 0.43%, more than QQQ's 0.38% 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%
QQQ Invesco QQQ ETF	0.38%	0.45%	0.56%	0.62%	0.80%	0.43%	0.55%	0.74%	0.91%	0.84%	1.06%	0.99%

Frequently Asked Questions

Can I hold both ENS and QQQ in my portfolio?

ENS and QQQ have a correlation of 0.49, 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 QQQ?

ENS has higher volatility (16.86%) compared to QQQ (4.48%). In terms of maximum drawdown, ENS dropped -83.95% vs QQQ's -82.97%.

Which has better risk-adjusted returns?

ENS currently has the higher Sharpe Ratio (5.25 vs 2.73), 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.