CSIQ vs. SPWR

Last updated Jun 24, 2026

CSIQ (Canadian Solar Inc.) and SPWR (SunPower Corporation) are both stocks. Both operate in the Solar industry within the Technology sector. At a 0.18 correlation, their price movements are largely independent.

Performance

CSIQ vs. SPWR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Canadian Solar Inc. (CSIQ) and SunPower Corporation (SPWR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

CSIQ

• 1D: -8.05%
• 1M: -21.98%
• YTD: -38.03%
• 6M: -38.45%
• 1Y: 45.41%
• 3Y*: -26.40%
• 5Y*: -17.56%
• 10Y*: -0.07%

SPWR

• 1D: -9.21%
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CSIQ vs. SPWR - Yearly Performance Comparison

	2026 (YTD)
CSIQ Canadian Solar Inc.	-22.68%
SPWR SunPower Corporation	-41.12%

Correlation

The correlation between CSIQ and SPWR is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 28, 2026	0.18

Fundamentals

Market Cap CSIQ : $998.95M SPWR : $534.90M
EPS CSIQ : -$1.51 SPWR : -$0.04
PS Ratio CSIQ : 0.18 SPWR : 1.49
Total Revenue (TTM) CSIQ : $5.48B SPWR : $308.76M
Gross Profit (TTM) CSIQ : $1.16B SPWR : $149.79M
EBITDA (TTM) CSIQ : $398.75M SPWR : -$3.66M

Return for Risk

CSIQ vs. SPWR — Risk / Return Rank

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

CSIQ

CSIQ Risk / Return Rank: 60
CSIQ Sharpe Ratio Rank: 59
CSIQ Sortino Ratio Rank: 62
CSIQ Omega Ratio Rank: 62
CSIQ Calmar Ratio Rank: 59
CSIQ Martin Ratio Rank: 57

SPWR

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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.

CSIQ vs. SPWR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Canadian Solar Inc. (CSIQ) and SunPower Corporation (SPWR). 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.

	CSIQ	SPWR	Difference
Sharpe ratio: Return per unit of total volatility	0.48	—	—
Sortino ratio: Return per unit of downside risk	1.26	—	—
Omega ratio: Gain probability vs. loss probability	1.16	—	—
Calmar ratio: Return relative to maximum drawdown	0.71	—	—
Martin ratio: Return relative to average drawdown	1.28	—	—

Drawdowns

CSIQ vs. SPWR - Drawdown Comparison

The maximum CSIQ drawdown since its inception was -96.02%, which is greater than SPWR's maximum drawdown of -42.20%. Use the drawdown chart below to compare losses from any high point for CSIQ and SPWR.

Drawdown Indicators

	CSIQ	SPWR	Difference
Max Drawdown Largest peak-to-trough decline	-96.02%	-42.20%	-53.82%
Max Drawdown (1Y) Largest decline over 1 year	-63.94%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-82.53%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-85.65%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-89.46%	—	—
Current Drawdown Current decline from peak	-77.04%	-42.20%	-34.84%
Average Drawdown Average peak-to-trough decline	-61.11%	-19.29%	-41.82%
Ulcer Index Depth and duration of drawdowns from previous peaks	35.54%	—	—

Volatility

Volatility by Period

	CSIQ	SPWR	Difference
Volatility (1M) Calculated over the trailing 1-month period	25.54%	—	—
Volatility (6M) Calculated over the trailing 6-month period	65.93%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	96.04%	99.62%	-3.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	72.19%	99.62%	-27.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	63.78%	99.62%	-35.84%

Dividends

CSIQ vs. SPWR - Dividend Comparison

Neither CSIQ nor SPWR has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

CSIQ vs. SPWR - Profitability Comparison

The chart below illustrates the profitability comparison between Canadian Solar Inc. and SunPower Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CSIQ - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Canadian Solar Inc. reported a gross profit of 270.82M and revenue of 1.08B. Therefore, the gross margin over that period was 25.1%.

SPWR - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, SunPower Corporation reported a gross profit of 48.85M and revenue of 88.49M. Therefore, the gross margin over that period was 55.2%.

CSIQ - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Canadian Solar Inc. reported an operating income of 72.87M and revenue of 1.08B, resulting in an operating margin of 6.8%.

SPWR - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, SunPower Corporation reported an operating income of -1.12M and revenue of 88.49M, resulting in an operating margin of -1.3%.

CSIQ - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Canadian Solar Inc. reported a net income of -32.09M and revenue of 1.08B, resulting in a net margin of -3.0%.

SPWR - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, SunPower Corporation reported a net income of -1.12M and revenue of 88.49M, resulting in a net margin of -1.3%.

Frequently Asked Questions

Can I hold both CSIQ and SPWR in my portfolio?

CSIQ and SPWR have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.