FSLR vs JKS vs WNDW Stock Comparison

First Solar, JinkoSolar Holding and SolarWindow Technologies Prices as of Nov 5, 2026 Peers: Industry group
FSLR First Solar, Inc.
$195.76 +8.9% 1M -29.4% 1Y
Market cap
$21.63B
P/E
11.6x
Revenue (TTM)
$5.01B
Div. yield
–
Solar Equipment Industrials
6 wins

Head to Head

8 decided of 12

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

QuestionFSLRJKSWNDWLeader
Larger companyMarket capitalisation $21.63B $572.61M $103.93M FSLR
Cheaper on earningsLower P/E, profitable companies only 11.6x -5.5x -44.0x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 10.5x — — –
Faster revenue growthRevenue growth, trailing twelve months -0.7% -14.6% +61.8% WNDW
More profitableNet margin, trailing twelve months 37.1% -1.3% -1,517.3% FSLR
Better return on capitalReturn on invested capital 17.1% 0.0% — FSLR
Less leveragedLower net debt / EBITDA -0.6x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -29.4% -64.2% +229.2% WNDW
Better 5-year returnAnnualised price return, 5 years +11.0%/yr -28.8%/yr -23.6%/yr FSLR
Less volatileAnnualised volatility, 1 year 52.3% 59.3% 173.9% FSLR
Higher overall scoreMean of the five percentile scores vs peers 85/100 50/100 45/100 FSLR

Percentile Scorecard

FSLRJKSWNDW

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

AxisFSLRJKSWNDW
Valuation 89 #8 of 63 94 #5 of 63 39 #39 of 63
Growth 75 #16 of 60 20 #48 of 60 37 #38 of 60
Profitability 95 #4 of 57 57 #25 of 57 7 #53 of 57
Financial Health 83 #13 of 72 30 #51 of 72 97 #3 of 72
Shareholder Returns – – –
Overall 85 50 45
  • FSLR ranked among 72 companies in Clean Energy Equipment
  • JKS ranked among 72 companies in Clean Energy Equipment
  • 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

PeriodFSLRJKSWNDWSPY
1 month +8.9%+13.5%-1.2% -5.9%
3 months -19.8%-36.4%+532.0% -4.6%
6 months -8.8%-55.9%+327.0% +0.2%
Year to date -25.1%-60.1%+276.2% +7.5%
1 year -29.4%-64.2%+229.2% +8.2%
3 years +33.2%-69.9%+132.4% +68.3%
3 years, per year +10.0%-33.0%+32.5% +19.0%
5 years +68.3%-81.7%-74.0% +56.5%
5 years, per year +11.0%-28.8%-23.6% +9.4%
10 years +502.7%-29.9%-52.4% +251.5%
10 years, per year +19.7%-3.5%-7.2% +13.4%

Risk

MeasureFSLRJKSWNDWSPY
Volatility, 1Y 52.3%59.3%173.9% 13.6%
Downside volatility, 1Y 56.5%61.0%150.6% 14.2%
Beta vs S&P 500, 1Y 1.541.471.23 1.00
Return / volatility, 1Y -0.56-1.081.32 0.60
Max drawdown, 5Y -60.0%-89.4%-99.7% -25.4%
From 52-week high -38.5%-66.4%-22.9% -5.9%
52-week high $318.25$30.58$2.05 $779.14
52-week low $168.15$8.02$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.

MultipleFSLRJKSWNDW
P/E now vs peer median 11.3xmedian 25.0x -5.2xmedian 25.0x -44.0xmedian 25.0x
P/S now vs peer median 4.2xmedian 2.3x 0.1xmedian 2.3x 667.6xmedian 2.3x
EV/EBITDA now vs peer median 7.9xmedian 18.3x —median 18.3x -39.9xmedian 18.3x
P/FCF now vs peer median 90.4xmedian 28.3x —median 28.3x -46.5xmedian 28.3x
P/B now vs peer median 1.9xmedian 1.8x 0.1xmedian 1.8x 22.6xmedian 1.8x
PEG now vs peer median 0.20median 0.65 0.18median 0.65 -5.84median 0.65

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 monthsFSLRJKSWNDW
Revenue $5.01B $8.13B $155.68K
Gross profit $2.47B $480.41M –
Operating income $1.89B $156.82M -$2.50M
Net income $1.86B -$1.15B -$2.39M
Free cash flow $232.79M – -$2.23M
R&D $276.36M $135.86M $637.23K
EPS (diluted) $17.28 $-1.99 $-0.04
Cash & equivalents $1.58B $2.32B $4.79M
Total debt $107.67M $3.00B –
Shares (diluted) 107.70M 52.10M 65.78M
Enterprise value $12.99B -$11.01B $99.14M

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
MetricFSLRJKSWNDW
P/E 11.3x -5.2x -44.0x
P/FCF 90.4x – -46.5x
P/Operating cash flow 25.1x – -46.5x
P/S 4.2x 0.1x 667.6x
P/B 1.9x 0.1x 22.6x
P/Tangible book 1.9x 0.2x 22.6x
EV/EBITDA 7.9x – -39.9x
EV/EBIT 10.3x -1.6x -39.6x
EV/Revenue 3.9x 0.2x 636.8x
EV/FCF 83.9x – -44.4x
EV/Operating cash flow 23.3x – -44.4x
PEG (3Y EPS CAGR) 0.20 0.18 -5.84

Growth

14 metrics
MetricFSLRJKSWNDW
Revenue growth (1Y) -0.7% -14.6% 61.8%
Revenue CAGR (3Y) 16.6% -20.9% 9.4%
Gross profit growth (1Y) 22.1% 63.8% –
Gross profit CAGR (3Y) 42.2% -43.8% –
Operating income growth (1Y) 25.5% 114.8% -0.2%
Operating income CAGR (3Y) 65.9% -44.0% -1.4%
Net income growth (1Y) 32.9% 4.5% -0.6%
Net income CAGR (3Y) 57.8% -46.4% 40.0%
EPS growth (1Y) 32.7% 85.8% 20.3%
EPS CAGR (3Y) 57.7% -29.5% 7.5%
Operating cash flow growth (1Y) -48.4% – -40.0%
Operating cash flow CAGR (3Y) 0.1% – 1.6%
Free cash flow growth (1Y) -62.1% – -40.0%
Free cash flow CAGR (3Y) 34.6% – -2.1%

Profitability

14 metrics
MetricFSLRJKSWNDW
Gross margin 49.3% 5.9% –
EBITDA margin 49.5% – -1,597%
Operating margin 37.7% 1.9% -1,607%
Pretax margin 38.5% 1.3% -1,607%
Net margin 37.1% -1.3% -1,517%
FCF margin 4.6% – -1,435%
Operating cash flow margin 16.7% – -1,435%
Return on equity 17.6% -30.8% -48.4%
Return on assets 13.6% -6.6% -45.7%
Return on invested capital 17.1% 0.0% –
Return on capital employed 16.2% -8.4% -50.8%
Asset turnover 0.4x 0.5x 0.0x
Cash conversion (OCF / net income) 0.5x – 0.9x
Stock comp / revenue 0.5% – –

Financial Health

11 metrics
MetricFSLRJKSWNDW
Debt / assets 0.8% 17.4% –
Debt / equity 0.0x 0.8x –
Net debt / EBITDA -0.6x – –
Debt / FCF 0.5x – –
Liabilities / assets 22.4% 78.4% 6.3%
Equity / assets 77.6% 21.6% 93.7%
Interest coverage 70.3x -3.6x –
Current ratio 2.6x 1.1x 15.8x
Quick ratio 1.7x 0.5x 15.6x
Cash ratio 0.8x 0.3x 15.6x
Altman Z-score 5.91 – 179.31

Shareholder Returns

7 metrics
MetricFSLRJKSWNDW
Dividend yield – 14.6% –
Net buyback yield – – –
Shareholder yield – 14.6% –
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.

ConsensusFSLRJKSWNDW
Forward P/E 10.5xFY2026 – –
EPS, next fiscal year $18.58FY2026 $-4.84FY2026 –
EPS growth, next FY +30.8%FY2026 – –
EPS growth, the year after +19.3% – –
Revenue, next fiscal year $5.12BFY2026 $8.89BFY2026 –
Revenue growth, next FY -1.9%FY2026 -5.1%FY2026 –
Revenue growth, the year after +17.7% +28.8% –

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersFSLRJKSWNDW
Held by institutions 93.1% 32.8% –
Institutions holding 1,013 111 –
Change in shares held, QoQ +5.9% +8.7% –
Institutions buying 499 61 –
Institutions selling 356 30 –
Buyers to sellers 1.40 2.03 –

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.

FSLRJKSWNDW
FSLR 1.00 0.45 -0.01
JKS 0.45 1.00 -0.11
WNDW -0.01 -0.11 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, FSLR, JKS and WNDW?

First Solar (FSLR) is the largest by market capitalisation: First Solar (FSLR) $21.63B, JinkoSolar Holding (JKS) $572.61M, SolarWindow Technologies (WNDW) $103.93M.

Which company is growing faster?

SolarWindow Technologies (WNDW) grew revenue fastest over the trailing twelve months: First Solar (FSLR) -0.7%, JinkoSolar Holding (JKS) -14.6%, SolarWindow Technologies (WNDW) +61.8%.

Which company is more profitable?

First Solar (FSLR) has the highest net margin (First Solar (FSLR) 37.1%, JinkoSolar Holding (JKS) -1.3%, SolarWindow Technologies (WNDW) -1,517.3%). On return on invested capital, First Solar (FSLR) leads (First Solar (FSLR) 17.1%, JinkoSolar Holding (JKS) 0.0%).

Which stock has performed better?

Over the past year SolarWindow Technologies (WNDW) returned the most: First Solar (FSLR) -29.4%, JinkoSolar Holding (JKS) -64.2%, SolarWindow Technologies (WNDW) +229.2%. Over five years, First Solar (FSLR) compounded fastest (First Solar (FSLR) +11.0%/yr, JinkoSolar Holding (JKS) -28.8%/yr, SolarWindow Technologies (WNDW) -23.6%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, First Solar (FSLR) has been the steadiest (First Solar (FSLR) 52.3%, JinkoSolar Holding (JKS) 59.3%, SolarWindow Technologies (WNDW) 173.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, FSLR, JKS 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, First Solar (FSLR) 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.