CSIQ vs RNW vs WNDW Stock Comparison

Canadian Solar, ReNew Energy Global and SolarWindow Technologies Prices as of Oct 29, 2026 Peers: Industry group
CSIQ Canadian Solar Inc.
$9.35 -19.0% 1M -46.8% 1Y
Market cap
$634.02M
P/E
–
Revenue (TTM)
$4.99B
Div. yield
–
Solar Equipment Industrials
RNW ReNew Energy Global plc
$6.87 +0.3% 1M -9.8% 1Y
Market cap
$5.01B
P/E
20.5x
Revenue (TTM)
$1.50B
Div. yield
–
Renewable Power Producers Utilities
6 wins

Head to Head

8 decided of 12

ReNew Energy Global leads on 6 of the 12 questions below (ReNew Energy Global 6, SolarWindow Technologies 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCSIQRNWWNDWLeader
Larger companyMarket capitalisation $634.02M $5.01B $85.51M RNW
Cheaper on earningsLower P/E, profitable companies only -2.6x 20.5x -36.2x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 27.5x — –
Faster revenue growthRevenue growth, trailing twelve months -15.7% +12.6% +61.8% WNDW
More profitableNet margin, trailing twelve months -4.9% 8.1% -1,517.3% RNW
Better return on capitalReturn on invested capital -0.2% 2.3% — RNW
Less leveragedLower net debt / EBITDA — -0.2x — –
Higher dividend yieldTrailing dividend yield — — — –
Better 1-year returnPrice return, last 12 months -46.8% -9.8% +150.0% WNDW
Better 5-year returnAnnualised price return, 5 years -25.8%/yr -7.1%/yr -27.5%/yr RNW
Less volatileAnnualised volatility, 1 year 91.2% 43.3% 173.2% RNW
Higher overall scoreMean of the five percentile scores vs peers 46/100 68/100 47/100 RNW

Percentile Scorecard

CSIQRNWWNDW

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

AxisCSIQRNWWNDW
Valuation 87 #9 of 62 91 #3 of 24 43 #36 of 62
Growth 10 #53 of 59 82 #5 of 23 41 #35 of 59
Profitability 63 #21 of 55 91 #3 of 23 9 #50 of 55
Financial Health 23 #56 of 72 44 #14 of 24 96 #4 of 72
Shareholder Returns – 33 #13 of 19 –
Overall 46 68 47
  • CSIQ ranked among 72 companies in Clean Energy Equipment
  • RNW ranked among 24 companies in Power Generation
  • WNDW ranked among 72 companies in Clean Energy Equipment

Price Performance

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

Returns

PeriodCSIQRNWWNDWSPY
1 month -19.0%+0.3%-31.6% +0.7%
3 months -36.7%+11.3%+400.0% +3.7%
6 months -38.8%+27.7%+282.4% +7.1%
Year to date -60.7%+21.6%+209.5% +12.8%
1 year -46.8%-9.8%+150.0% +11.9%
3 years -51.9%+26.8%+54.8% +85.2%
3 years, per year -21.7%+8.2%+15.7% +22.8%
5 years -77.5%-31.0%-79.9% +67.6%
5 years, per year -25.8%-7.1%-27.5% +10.9%
10 years -36.7%—-64.5% +262.0%
10 years, per year -4.5%—-9.8% +13.7%

Risk

MeasureCSIQRNWWNDWSPY
Volatility, 1Y 91.2%43.3%173.2% 12.7%
Downside volatility, 1Y 99.0%57.0%149.3% 12.6%
Beta vs S&P 500, 1Y 2.670.721.33 1.00
Return / volatility, 1Y -0.51-0.230.87 0.94
Max drawdown, 5Y -85.6%-58.7%-99.7% -25.4%
From 52-week high -72.2%-9.8%-36.6% -1.2%
52-week high $33.58$7.62$2.05 $779.14
52-week low $8.85$4.50$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.

MultipleCSIQRNWWNDW
P/E now vs peer median -2.6xmedian 26.6x 20.5xmedian 24.9x -36.2xmedian 26.6x
P/S now vs peer median 0.1xmedian 2.6x 3.3xmedian 2.6x 549.3xmedian 2.6x
EV/EBITDA now vs peer median —median 18.9x 10.7xmedian 11.6x -32.5xmedian 18.9x
P/FCF now vs peer median 2.0xmedian 30.1x 4.9xmedian 13.9x -38.3xmedian 30.1x
P/B now vs peer median 0.2xmedian 1.9x 3.1xmedian 2.1x 18.6xmedian 1.9x
PEG now vs peer median 0.07median 0.97 0.04median 0.62 -4.81median 0.97

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 monthsCSIQRNWWNDW
Revenue $4.99B $1.50B $155.68K
Gross profit $820.00M – –
Operating income -$27.67M $158.00M -$2.50M
Net income -$251.16M $122.00M -$2.39M
Free cash flow $311.68M $1.01B -$2.23M
R&D $83.20M – $637.23K
EPS (diluted) $-3.60 $11.29 $-0.04
Cash & equivalents $1.46B $233.00M $4.79M
Total debt $6.38B $240.00M –
Shares (diluted) 67.37M 10.81M 65.78M
Enterprise value -$4.23B $3.42B $80.72M

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
MetricCSIQRNWWNDW
P/E -2.6x 20.5x -36.2x
P/FCF 2.0x 4.9x -38.3x
P/Operating cash flow -1.1x 4.9x -38.3x
P/S 0.1x 3.3x 549.3x
P/B 0.2x 3.1x 18.6x
P/Tangible book 0.2x 3.1x 18.6x
EV/EBITDA – 10.7x -32.5x
EV/EBIT -200.7x 31.2x -32.3x
EV/Revenue 1.1x 3.3x 518.5x
EV/FCF 17.8x 4.9x -36.1x
EV/Operating cash flow -9.8x 4.9x -36.1x
PEG (3Y EPS CAGR) 0.07 0.04 -4.81

Growth

14 metrics
MetricCSIQRNWWNDW
Revenue growth (1Y) -15.7% 12.6% 61.8%
Revenue CAGR (3Y) -14.4% 16.7% 9.4%
Gross profit growth (1Y) -26.1% – –
Gross profit CAGR (3Y) -17.7% – –
Operating income growth (1Y) 48.9% -12.0% -0.2%
Operating income CAGR (3Y) -27.0% 31.4% -1.4%
Net income growth (1Y) -44.9% 9.9% -0.6%
Net income CAGR (3Y) -35.7% 85.2% 40.0%
EPS growth (1Y) -9.9% 9.9% 20.3%
EPS CAGR (3Y) -36.0% 512.3% 7.5%
Operating cash flow growth (1Y) -135.9% 20.9% -40.0%
Operating cash flow CAGR (3Y) -39.4% 6.1% 1.6%
Free cash flow growth (1Y) -51.2% 20.9% -40.0%
Free cash flow CAGR (3Y) -43.3% 6.1% -2.1%

Profitability

14 metrics
MetricCSIQRNWWNDW
Gross margin 16.4% – –
EBITDA margin – 30.9% -1,597%
Operating margin -0.6% 10.5% -1,607%
Pretax margin -3.7% 10.3% -1,607%
Net margin -4.9% 8.1% -1,517%
FCF margin 6.2% 67.6% -1,435%
Operating cash flow margin -11.4% 67.6% -1,435%
Return on equity -6.3% 7.7% -48.4%
Return on assets -1.6% 1.1% -45.7%
Return on invested capital -0.2% 2.3% –
Return on capital employed -0.3% 2.0% -50.8%
Asset turnover 0.3x 0.1x 0.0x
Cash conversion (OCF / net income) 2.3x 8.3x 0.9x
Stock comp / revenue – – –

Financial Health

11 metrics
MetricCSIQRNWWNDW
Debt / assets 39.6% 2.1% –
Debt / equity 1.6x 0.1x –
Net debt / EBITDA – -0.2x –
Debt / FCF 20.5x 0.2x –
Liabilities / assets 75.6% 85.8% 6.3%
Equity / assets 24.4% 14.2% 93.7%
Interest coverage -0.1x – –
Current ratio 1.0x 0.4x 15.8x
Quick ratio 0.4x 0.1x 15.6x
Cash ratio 0.2x 0.1x 15.6x
Altman Z-score 0.47 0.22 143.23

Shareholder Returns

7 metrics
MetricCSIQRNWWNDW
Dividend yield – – –
Net buyback yield – -3.2% –
Shareholder yield – -3.2% –
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.

ConsensusCSIQRNWWNDW
Forward P/E – 27.5xFY2026 –
EPS, next fiscal year $-2.62FY2026 $0.25FY2026 –
EPS growth, next FY – -21.9%FY2026 –
EPS growth, the year after – +96.0% –
Revenue, next fiscal year $5.88BFY2026 $1.80BFY2026 –
Revenue growth, next FY +5.0%FY2026 +11.8%FY2026 –
Revenue growth, the year after +21.9% -2.4% –

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCSIQRNWWNDW
Held by institutions 60.5% 40.7% –
Institutions holding 156 144 –
Change in shares held, QoQ +23.0% +0.9% –
Institutions buying 98 104 –
Institutions selling 32 28 –
Buyers to sellers 3.06 3.71 –

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.

CSIQRNWWNDW
CSIQ 1.00 0.12 -0.05
RNW 0.12 1.00 0.03
WNDW -0.05 0.03 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CSIQ, RNW and WNDW?

ReNew Energy Global (RNW) is the largest by market capitalisation: Canadian Solar (CSIQ) $634.02M, ReNew Energy Global (RNW) $5.01B, SolarWindow Technologies (WNDW) $85.51M.

Which company is growing faster?

SolarWindow Technologies (WNDW) grew revenue fastest over the trailing twelve months: Canadian Solar (CSIQ) -15.7%, ReNew Energy Global (RNW) +12.6%, SolarWindow Technologies (WNDW) +61.8%.

Which company is more profitable?

ReNew Energy Global (RNW) has the highest net margin (Canadian Solar (CSIQ) -4.9%, ReNew Energy Global (RNW) 8.1%, SolarWindow Technologies (WNDW) -1,517.3%). On return on invested capital, ReNew Energy Global (RNW) leads (Canadian Solar (CSIQ) -0.2%, ReNew Energy Global (RNW) 2.3%).

Which stock has performed better?

Over the past year SolarWindow Technologies (WNDW) returned the most: Canadian Solar (CSIQ) -46.8%, ReNew Energy Global (RNW) -9.8%, SolarWindow Technologies (WNDW) +150.0%. Over five years, ReNew Energy Global (RNW) compounded fastest (Canadian Solar (CSIQ) -25.8%/yr, ReNew Energy Global (RNW) -7.1%/yr, SolarWindow Technologies (WNDW) -27.5%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, ReNew Energy Global (RNW) has been the steadiest (Canadian Solar (CSIQ) 91.2%, ReNew Energy Global (RNW) 43.3%, SolarWindow Technologies (WNDW) 173.2%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CSIQ, RNW 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, ReNew Energy Global (RNW) leads on 6. 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.