CSIQ vs WNDW vs ARRY Stock Comparison

Canadian Solar, SolarWindow Technologies and Array Technologies Prices as of Oct 26, 2026 Peers: Industry group
CSIQ Canadian Solar Inc.
$8.85 -18.1% 1M -41.0% 1Y
Market cap
$653.47M
P/E
–
Revenue (TTM)
$4.99B
Div. yield
–
Solar Equipment Industrials
3 wins

Head to Head

8 decided of 12

Canadian Solar leads on 3 of the 12 questions below (Canadian Solar 3, SolarWindow Technologies 3, Array Technologies 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCSIQWNDWARRYLeader
Larger companyMarket capitalisation $653.47M $97.35M $518.53M CSIQ
Cheaper on earningsLower P/E, profitable companies only -2.7x -41.2x -3.5x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — — 4.0x –
Faster revenue growthRevenue growth, trailing twelve months -15.7% +61.8% +1.2% WNDW
More profitableNet margin, trailing twelve months -4.9% -1,517.3% -12.5% CSIQ
Better return on capitalReturn on invested capital -0.2% — -13.4% CSIQ
Less leveragedLower net debt / EBITDA — — -302.9x –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -41.0% +158.2% -64.8% WNDW
Better 5-year returnAnnualised price return, 5 years -25.6%/yr -25.6%/yr -29.7%/yr WNDW
Less volatileAnnualised volatility, 1 year 92.2% 174.0% 78.8% ARRY
Higher overall scoreMean of the five percentile scores vs peers 45/100 46/100 55/100 ARRY

Percentile Scorecard

CSIQWNDWARRY

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisCSIQWNDWARRY
Valuation 83 #11 of 61 40 #37 of 61 97 #3 of 61
Growth 12 #51 of 58 40 #35 of 58 28 #42 of 58
Profitability 63 #21 of 55 7 #51 of 55 67 #19 of 55
Financial Health 20 #57 of 71 96 #4 of 71 30 #50 of 71
Shareholder Returns – – –
Overall 45 46 55
  • CSIQ ranked among 71 companies in Clean Energy Equipment
  • WNDW ranked among 71 companies in Clean Energy Equipment
  • ARRY ranked among 71 companies in Clean Energy Equipment

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodCSIQWNDWARRYSPY
1 month -18.1%-27.2%-21.8% -0.8%
3 months -35.8%+446.2%-42.8% +3.5%
6 months -36.4%+264.1%-60.5% +7.0%
Year to date -62.8%+238.1%-65.8% +12.2%
1 year -41.0%+158.2%-64.8% +13.0%
3 years -53.9%+94.5%-81.5% +86.3%
3 years, per year -22.8%+24.8%-43.1% +23.1%
5 years -77.2%-77.1%-82.8% +68.6%
5 years, per year -25.6%-25.6%-29.7% +11.0%
10 years -42.2%-62.1%— +258.0%
10 years, per year -5.3%-9.3%— +13.6%

Risk

MeasureCSIQWNDWARRYSPY
Volatility, 1Y 92.2%174.0%78.8% 12.7%
Downside volatility, 1Y 99.4%150.5%88.4% 12.7%
Beta vs S&P 500, 1Y 2.641.313.10 1.00
Return / volatility, 1Y -0.440.91-0.82 1.02
Max drawdown, 5Y -85.6%-99.7%-88.4% -25.4%
From 52-week high -73.6%-30.7%-73.7% -1.8%
52-week high $33.58$2.05$11.96 $779.14
52-week low $8.85$0.25$3.15 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleCSIQWNDWARRY
P/E now vs peer median -2.5xmedian 25.4x -39.5xmedian 25.4x -3.3xmedian 25.4x
P/S now vs peer median 0.1xmedian 2.1x 600.0xmedian 2.1x 0.4xmedian 2.1x
EV/EBITDA now vs peer median —median 17.5x -35.7xmedian 17.5x -722.2xmedian 17.5x
P/FCF now vs peer median 1.9xmedian 27.3x -41.8xmedian 27.3x 3.6xmedian 27.3x
P/B now vs peer median 0.2xmedian 1.7x 20.3xmedian 1.7x -2.4xmedian 1.7x
PEG now vs peer median 0.07median 0.77 -5.25median 0.77 0.06median 0.77

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsCSIQWNDWARRY
Revenue $4.99B $155.68K $1.19B
Gross profit $820.00M – $287.61M
Operating income -$27.67M -$2.50M -$60.78M
Net income -$251.16M -$2.39M -$85.90M
Free cash flow $311.68M -$2.23M $134.73M
R&D $83.20M $637.23K –
EPS (diluted) $-3.60 $-0.04 $-0.95
Cash & equivalents $1.46B $4.79M $307.30M
Total debt $24.65B – $657.75M
Shares (diluted) 67.37M 65.78M 155.69M
Enterprise value -$5.38B $92.56M -$455.38M

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricCSIQWNDWARRY
P/E -2.5x -39.5x -3.3x
P/FCF 1.9x -41.8x 3.6x
P/Operating cash flow -1.1x -41.8x 3.0x
P/S 0.1x 600.0x 0.4x
P/B 0.2x 20.3x -2.4x
P/Tangible book 0.2x 20.3x -1.2x
EV/EBITDA – -35.7x -722.2x
EV/EBIT -199.4x -35.4x -13.7x
EV/Revenue 1.1x 569.2x 0.7x
EV/FCF 17.7x -39.7x 6.2x
EV/Operating cash flow -9.7x -39.7x 5.1x
PEG (3Y EPS CAGR) 0.07 -5.25 0.06

Growth

14 metrics
MetricCSIQWNDWARRY
Revenue growth (1Y) -15.7% 61.8% 1.2%
Revenue CAGR (3Y) -14.4% 9.4% -13.0%
Gross profit growth (1Y) -26.1% – -12.9%
Gross profit CAGR (3Y) -17.7% – -10.2%
Operating income growth (1Y) 48.9% -0.2% 69.8%
Operating income CAGR (3Y) -27.0% -1.4% -32.8%
Net income growth (1Y) -44.9% -0.6% 58.8%
Net income CAGR (3Y) -35.7% 40.0% -38.6%
EPS growth (1Y) -9.9% 20.3% 45.3%
EPS CAGR (3Y) -36.0% 7.5% -55.9%
Operating cash flow growth (1Y) -135.9% -40.0% 22.2%
Operating cash flow CAGR (3Y) -39.4% 1.6% -15.4%
Free cash flow growth (1Y) -51.2% -40.0% 22.2%
Free cash flow CAGR (3Y) -43.3% -2.1% -18.9%

Profitability

14 metrics
MetricCSIQWNDWARRY
Gross margin 16.4% – 24.3%
EBITDA margin – -1,597% -0.1%
Operating margin -0.6% -1,607% -5.1%
Pretax margin -3.7% -1,607% -6.2%
Net margin -4.9% -1,517% -12.5%
FCF margin 6.2% -1,435% 11.4%
Operating cash flow margin -11.4% -1,435% 13.7%
Return on equity -6.3% -48.4% –
Return on assets -1.6% -45.7% -5.7%
Return on invested capital -0.2% – -13.4%
Return on capital employed -0.3% -50.8% -5.5%
Asset turnover 0.3x 0.0x 0.8x
Cash conversion (OCF / net income) 2.3x 0.9x -1.9x
Stock comp / revenue – – 1.5%

Financial Health

11 metrics
MetricCSIQWNDWARRY
Debt / assets 39.6% – 42.9%
Debt / equity 1.6x – -3.3x
Net debt / EBITDA – – -302.9x
Debt / FCF 20.5x – 4.9x
Liabilities / assets 75.6% 6.3% 113.2%
Equity / assets 24.4% 93.7% -13.2%
Interest coverage -0.1x – -2.8x
Current ratio 1.0x 15.8x 2.2x
Quick ratio 0.4x 15.6x 1.8x
Cash ratio 0.2x 15.6x 0.8x
Altman Z-score 0.47 158.69 0.83

Shareholder Returns

7 metrics
MetricCSIQWNDWARRY
Dividend yield – – –
Net buyback yield – – –
Shareholder yield – – –
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusCSIQWNDWARRY
Forward P/E – – 4.0xFY2026
EPS, next fiscal year $-2.62FY2026 – $0.79FY2026
EPS growth, next FY – – +17.9%FY2026
EPS growth, the year after – – +7.6%
Revenue, next fiscal year $5.88BFY2026 – $1.41BFY2026
Revenue growth, next FY +5.0%FY2026 – +9.8%FY2026
Revenue growth, the year after +21.9% – +18.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCSIQWNDWARRY
Held by institutions 60.5% – 100.0%
Institutions holding 156 – 259
Change in shares held, QoQ +23.0% – +7.3%
Institutions buying 98 – 134
Institutions selling 32 – 80
Buyers to sellers 3.06 – 1.68

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

CSIQWNDWARRY
CSIQ 1.00 -0.07 0.43
WNDW -0.07 1.00 -0.03
ARRY 0.43 -0.03 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CSIQ, WNDW and ARRY?

Canadian Solar (CSIQ) is the largest by market capitalisation: Canadian Solar (CSIQ) $653.47M, SolarWindow Technologies (WNDW) $97.35M, Array Technologies (ARRY) $518.53M.

Which company is growing faster?

SolarWindow Technologies (WNDW) grew revenue fastest over the trailing twelve months: Canadian Solar (CSIQ) -15.7%, SolarWindow Technologies (WNDW) +61.8%, Array Technologies (ARRY) +1.2%.

Which company is more profitable?

Canadian Solar (CSIQ) has the highest net margin (Canadian Solar (CSIQ) -4.9%, SolarWindow Technologies (WNDW) -1,517.3%, Array Technologies (ARRY) -12.5%). On return on invested capital, Canadian Solar (CSIQ) leads (Canadian Solar (CSIQ) -0.2%, Array Technologies (ARRY) -13.4%).

Which stock has performed better?

Over the past year SolarWindow Technologies (WNDW) returned the most: Canadian Solar (CSIQ) -41.0%, SolarWindow Technologies (WNDW) +158.2%, Array Technologies (ARRY) -64.8%. Over five years, SolarWindow Technologies (WNDW) compounded fastest (Canadian Solar (CSIQ) -25.6%/yr, SolarWindow Technologies (WNDW) -25.6%/yr, Array Technologies (ARRY) -29.7%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Array Technologies (ARRY) has been the steadiest (Canadian Solar (CSIQ) 92.2%, SolarWindow Technologies (WNDW) 174.0%, Array Technologies (ARRY) 78.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CSIQ, WNDW and ARRY?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Canadian Solar (CSIQ) leads on 3. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.