ARRY vs CSIQ vs WNDW Stock Comparison

Array Technologies, Canadian Solar and SolarWindow Technologies Prices as of Oct 26, 2026 Peers: Industry group
CSIQ Canadian Solar Inc.
$8.85 -18.1% 1M -41.0% 1Y
Market cap
$623.84M
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.

QuestionARRYCSIQWNDWLeader
Larger companyMarket capitalisation $496.99M $623.84M $93.41M CSIQ
Cheaper on earningsLower P/E, profitable companies only -3.4x -2.6x -39.5x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 4.0x — — –
Faster revenue growthRevenue growth, trailing twelve months +1.2% -15.7% +61.8% WNDW
More profitableNet margin, trailing twelve months -12.5% -4.9% -1,517.3% CSIQ
Better return on capitalReturn on invested capital -13.4% -0.2% — CSIQ
Less leveragedLower net debt / EBITDA -302.9x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% — –
Better 1-year returnPrice return, last 12 months -64.8% -41.0% +158.2% WNDW
Better 5-year returnAnnualised price return, 5 years -29.7%/yr -25.6%/yr -25.6%/yr WNDW
Less volatileAnnualised volatility, 1 year 78.8% 92.2% 174.0% ARRY
Higher overall scoreMean of the five percentile scores vs peers 55/100 45/100 46/100 ARRY

Percentile Scorecard

ARRYCSIQWNDW

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

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

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

Risk

MeasureARRYCSIQWNDWSPY
Volatility, 1Y 78.8%92.2%174.0% 12.7%
Downside volatility, 1Y 88.4%99.4%150.5% 12.7%
Beta vs S&P 500, 1Y 3.102.641.31 1.00
Return / volatility, 1Y -0.82-0.440.91 1.02
Max drawdown, 5Y -88.4%-85.6%-99.7% -25.4%
From 52-week high -73.7%-73.6%-30.7% -1.8%
52-week high $11.96$33.58$2.05 $779.14
52-week low $3.15$8.85$0.25 $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.

MultipleARRYCSIQWNDW
P/E now vs peer median -3.3xmedian 25.4x -2.5xmedian 25.4x -39.5xmedian 25.4x
P/S now vs peer median 0.4xmedian 2.1x 0.1xmedian 2.1x 600.0xmedian 2.1x
EV/EBITDA now vs peer median -722.2xmedian 17.5x —median 17.5x -35.7xmedian 17.5x
P/FCF now vs peer median 3.6xmedian 27.3x 1.9xmedian 27.3x -41.8xmedian 27.3x
P/B now vs peer median -2.4xmedian 1.7x 0.2xmedian 1.7x 20.3xmedian 1.7x
PEG now vs peer median 0.06median 0.77 0.07median 0.77 -5.25median 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 monthsARRYCSIQWNDW
Revenue $1.19B $4.99B $155.68K
Gross profit $287.61M $820.00M –
Operating income -$60.78M -$27.67M -$2.50M
Net income -$85.90M -$251.16M -$2.39M
Free cash flow $134.73M $311.68M -$2.23M
R&D – $83.20M $637.23K
EPS (diluted) $-0.95 $-3.60 $-0.04
Cash & equivalents $307.30M $1.46B $4.79M
Total debt $657.75M $24.65B –
Shares (diluted) 155.69M 67.37M 65.78M
Enterprise value -$476.92M -$5.41B $88.62M

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

Growth

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

Profitability

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

Financial Health

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

Shareholder Returns

7 metrics
MetricARRYCSIQWNDW
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.

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

Institutional Ownership

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

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.

ARRYCSIQWNDW
ARRY 1.00 0.43 -0.04
CSIQ 0.43 1.00 -0.07
WNDW -0.04 -0.07 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ARRY, CSIQ and WNDW?

Canadian Solar (CSIQ) is the largest by market capitalisation: Array Technologies (ARRY) $496.99M, Canadian Solar (CSIQ) $623.84M, SolarWindow Technologies (WNDW) $93.41M.

Which company is growing faster?

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

Which company is more profitable?

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

Which stock has performed better?

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

Which stock is riskier?

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

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

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.