CLS.TO vs. NRG

Last updated Jun 9, 2026

CLS.TO (Celestica Inc.) and NRG (NRG Energy, Inc.) are both stocks. CLS.TO operates in Electronic Components (Technology), while NRG operates in Utilities - Independent Power Producers (Utilities). Over the past 10 years, CLS.TO returned 44.44%/yr vs 27.70%/yr for NRG. At a 0.24 correlation, their price movements are largely independent.

Performance

CLS.TO vs. NRG - Performance Comparison

The chart below illustrates the hypothetical performance of a CA$10,000 investment in Celestica Inc. (CLS.TO) and NRG Energy, Inc. (NRG). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

CLS.TO is traded in CAD, while NRG is traded in USD. To make them comparable, the NRG values have been converted to CAD using the latest available exchange rates.

Returns By Period

In the year-to-date period, CLS.TO achieves a 32.58% return, which is significantly higher than NRG's -17.83% return. Over the past 10 years, CLS.TO has outperformed NRG with an annualized return of 44.44%, while NRG has yielded a comparatively lower 27.70% annualized return.

CLS.TO

• 1D: 3.80%
• 1M: 4.71%
• YTD: 32.58%
• 6M: 13.91%
• 1Y: 225.20%
• 3Y*: 213.80%
• 5Y*: 120.83%
• 10Y*: 44.44%

NRG

• 1D: -0.88%
• 1M: -5.61%
• YTD: -17.83%
• 6M: -21.08%
• 1Y: -15.48%
• 3Y*: 60.83%
• 5Y*: 35.64%
• 10Y*: 27.70%

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

CLS.TO vs. NRG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CLS.TO Celestica Inc.	32.58%	206.05%	241.82%	154.33%	8.23%	37.29%	-4.64%	-9.95%	-9.26%	-17.16%
NRG NRG Energy, Inc.	-17.83%	70.74%	93.70%	65.33%	-18.62%	18.48%	-4.46%	-3.46%	51.33%	117.87%

Correlation

The correlation between CLS.TO and NRG is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (3Y) Calculated over the trailing 3-year period	0.39
Correlation (5Y) Calculated over the trailing 5-year period	0.37
Correlation (10Y) Calculated over the trailing 10-year period	0.27
Correlation (All Time) Calculated using the full available price history since Jul 6, 2006	0.24

The correlation between CLS.TO and NRG shifts across timeframes, from 0.24 (all time) to 0.42 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap CLS.TO : CA$62.28B NRG : $26.56B
EPS CLS.TO : CA$8.28 NRG : $1.21
PE Ratio CLS.TO : 64.97 NRG : 105.45
PEG Ratio CLS.TO : 0.87 NRG : 1.58
PS Ratio CLS.TO : 4.52 NRG : 0.78
PB Ratio CLS.TO : 29.68 NRG : 6.29
Total Revenue (TTM) CLS.TO : CA$13.81B NRG : $32.38B
Gross Profit (TTM) CLS.TO : CA$1.60B NRG : $4.69B
EBITDA (TTM) CLS.TO : CA$1.36B NRG : $2.57B

Return for Risk

CLS.TO vs. NRG — Risk / Return Rank

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

CLS.TO

CLS.TO Risk / Return Rank: 93
CLS.TO Sharpe Ratio Rank: 96
CLS.TO Sortino Ratio Rank: 89
CLS.TO Omega Ratio Rank: 89
CLS.TO Calmar Ratio Rank: 96
CLS.TO Martin Ratio Rank: 95

NRG

NRG Risk / Return Rank: 22
NRG Sharpe Ratio Rank: 25
NRG Sortino Ratio Rank: 25
NRG Omega Ratio Rank: 25
NRG Calmar Ratio Rank: 24
NRG Martin Ratio Rank: 11

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.

CLS.TO vs. NRG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Celestica Inc. (CLS.TO) and NRG Energy, Inc. (NRG). 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.

	CLS.TO	NRG	Difference
Sharpe ratio: Return per unit of total volatility	3.17	-0.35	+3.53
Sortino ratio: Return per unit of downside risk	3.00	-0.21	+3.21
Omega ratio: Gain probability vs. loss probability	1.41	0.97	+0.43
Calmar ratio: Return relative to maximum drawdown	7.15	-0.48	+7.63
Martin ratio: Return relative to average drawdown	17.88	-1.18	+19.06
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CLS.TO vs. NRG - Sharpe Ratio Comparison

The current CLS.TO Sharpe Ratio is 3.17, which is higher than the NRG Sharpe Ratio of -0.35. The chart below compares the historical Sharpe Ratios of CLS.TO and NRG, 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

	CLS.TO	NRG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.17	-0.35	+3.53
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.16	0.89	+1.27
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.92	0.70	+0.22
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.37	+0.10

Drawdowns

CLS.TO vs. NRG - Drawdown Comparison

The maximum CLS.TO drawdown since its inception was -79.32%, which is greater than NRG's maximum drawdown of -73.52%. Use the drawdown chart below to compare losses from any high point for CLS.TO and NRG.

Drawdown Indicators

	CLS.TO	NRG	Difference
Max Drawdown Largest peak-to-trough decline	-79.32%	-73.52%	-5.80%
Max Drawdown (1Y) Largest decline over 1 year	-31.71%	-32.35%	+0.64%
Max Drawdown (3Y) Largest decline over 3 years	-54.25%	-32.35%	-21.90%
Max Drawdown (5Y) Largest decline over 5 years	-54.25%	-32.35%	-21.90%
Max Drawdown (10Y) Largest decline over 10 years	-79.32%	-45.51%	-33.81%
Current Drawdown Current decline from peak	-17.55%	-29.12%	+11.57%
Average Drawdown Average peak-to-trough decline	-28.86%	-25.99%	-2.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.66%	13.17%	-0.51%

Volatility

CLS.TO vs. NRG - Volatility Comparison

Celestica Inc. (CLS.TO) has a higher volatility of 26.92% compared to NRG Energy, Inc. (NRG) at 13.85%. This indicates that CLS.TO's price experiences larger fluctuations and is considered to be riskier than NRG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CLS.TO	NRG	Difference
Volatility (1M) Calculated over the trailing 1-month period	26.92%	13.85%	+13.07%
Volatility (6M) Calculated over the trailing 6-month period	54.95%	34.52%	+20.43%
Volatility (1Y) Calculated over the trailing 1-year period	71.57%	44.41%	+27.16%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	56.52%	40.40%	+16.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	48.79%	39.90%	+8.89%

Dividends

CLS.TO vs. NRG - Dividend Comparison

CLS.TO has not paid dividends to shareholders, while NRG's dividend yield for the trailing twelve months is around 1.43%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CLS.TO Celestica Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
NRG NRG Energy, Inc.	1.43%	1.11%	1.81%	2.92%	4.40%	3.02%	3.20%	0.30%	0.30%	0.42%	1.92%	4.93%

Financials

CLS.TO vs. NRG - Profitability Comparison

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

CLS.TO - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Celestica Inc. reported a gross profit of 437.20M and revenue of 4.05B. Therefore, the gross margin over that period was 10.8%.

NRG - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, NRG Energy, Inc. reported a gross profit of 0.00 and revenue of 10.26B. Therefore, the gross margin over that period was 0.0%.

CLS.TO - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Celestica Inc. reported an operating income of 267.70M and revenue of 4.05B, resulting in an operating margin of 6.6%.

NRG - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, NRG Energy, Inc. reported an operating income of 328.00M and revenue of 10.26B, resulting in an operating margin of 3.2%.

CLS.TO - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Celestica Inc. reported a net income of 212.30M and revenue of 4.05B, resulting in a net margin of 5.3%.

NRG - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, NRG Energy, Inc. reported a net income of 125.00M and revenue of 10.26B, resulting in a net margin of 1.2%.

Frequently Asked Questions

Can I hold both CLS.TO and NRG in my portfolio?

CLS.TO and NRG have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.