ENPH vs CSIQ vs FSLR Stock Comparison

Enphase Energy, Canadian Solar and First Solar Prices as of Nov 4, 2026 Peers: Industry group
ENPH Enphase Energy, Inc.
$31.55 -5.7% 1M +8.8% 1Y
Market cap
$3.86B
P/E
42.5x
Revenue (TTM)
$1.21B
Div. yield
–
Solar Equipment Industrials
2 wins
CSIQ Canadian Solar Inc.
$10.78 -3.7% 1M -51.0% 1Y
Market cap
$696.25M
P/E
–
Revenue (TTM)
$4.99B
Div. yield
–
Solar Equipment Industrials
FSLR First Solar, Inc.
$194.51 +10.4% 1M -26.0% 1Y
Market cap
$21.21B
P/E
11.4x
Revenue (TTM)
$5.01B
Div. yield
–
Solar Equipment Industrials
9 wins

Head to Head

11 decided of 12

First Solar leads on 9 of the 12 questions below (First Solar 9, Enphase Energy 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionENPHCSIQFSLRLeader
Larger companyMarket capitalisation $3.86B $696.25M $21.21B FSLR
Cheaper on earningsLower P/E, profitable companies only 42.5x -2.9x 11.4x FSLR
Cheaper on forward earningsLower price / next fiscal year consensus EPS 16.4x — 10.5x FSLR
Faster revenue growthRevenue growth, trailing twelve months -19.9% -15.7% -0.7% FSLR
More profitableNet margin, trailing twelve months 7.5% -4.9% 37.1% FSLR
Better return on capitalReturn on invested capital 2.8% -0.2% 17.1% FSLR
Less leveragedLower net debt / EBITDA -2.7x — -0.6x ENPH
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +8.8% -51.0% -26.0% ENPH
Better 5-year returnAnnualised price return, 5 years -33.3%/yr -22.4%/yr +10.8%/yr FSLR
Less volatileAnnualised volatility, 1 year 81.5% 89.9% 52.6% FSLR
Higher overall scoreMean of the five percentile scores vs peers 60/100 45/100 85/100 FSLR

Percentile Scorecard

ENPHCSIQFSLR

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

AxisENPHCSIQFSLR
Valuation 79 #14 of 63 87 #9 of 63 89 #8 of 63
Growth 5 #57 of 60 9 #55 of 60 75 #16 of 60
Profitability 80 #12 of 57 61 #23 of 57 95 #4 of 57
Financial Health 72 #21 of 72 23 #56 of 72 83 #13 of 72
Shareholder Returns 61 #13 of 32 – –
Overall 60 45 85
  • ENPH ranked among 72 companies in Clean Energy Equipment
  • CSIQ ranked among 72 companies in Clean Energy Equipment
  • FSLR 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

PeriodENPHCSIQFSLRSPY
1 month -5.7%-3.7%+10.4% -1.0%
3 months -19.0%-30.0%-17.9% -0.4%
6 months -11.9%-36.1%-10.8% +4.5%
Year to date -1.6%-54.6%-25.5% +12.4%
1 year +8.8%-51.0%-26.0% +13.6%
3 years -61.0%-50.2%+28.0% +76.4%
3 years, per year -26.9%-20.7%+8.6% +20.8%
5 years -86.7%-71.9%+67.2% +63.7%
5 years, per year -33.3%-22.4%+10.8% +10.4%
10 years +2,596.6%-12.4%+498.9% +267.7%
10 years, per year +39.0%-1.3%+19.6% +13.9%

Risk

MeasureENPHCSIQFSLRSPY
Volatility, 1Y 81.5%89.9%52.6% 12.8%
Downside volatility, 1Y 72.6%98.9%56.5% 12.7%
Beta vs S&P 500, 1Y 2.492.651.77 1.00
Return / volatility, 1Y 0.11-0.57-0.49 1.06
Max drawdown, 5Y -92.6%-85.6%-60.0% -25.4%
From 52-week high -56.4%-67.9%-38.9% -1.6%
52-week high $72.33$33.58$318.25 $779.14
52-week low $24.99$8.85$168.15 $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.

MultipleENPHCSIQFSLR
P/E now vs peer median 46.0xmedian 26.4x -3.0xmedian 26.4x 11.2xmedian 26.4x
P/S now vs peer median 3.4xmedian 2.6x 0.1xmedian 2.6x 4.2xmedian 2.6x
EV/EBITDA now vs peer median 28.4xmedian 19.6x —median 19.6x 7.8xmedian 19.6x
P/FCF now vs peer median 30.8xmedian 29.9x 2.3xmedian 29.9x 89.8xmedian 29.9x
P/B now vs peer median 3.4xmedian 1.8x 0.2xmedian 1.8x 1.9xmedian 1.8x
PEG now vs peer median -1.03median 0.71 0.08median 0.71 0.19median 0.71

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 monthsENPHCSIQFSLR
Revenue $1.21B $4.99B $5.01B
Gross profit $554.56M $820.00M $2.47B
Operating income $50.78M -$27.67M $1.89B
Net income $90.77M -$251.16M $1.86B
Free cash flow $135.37M $311.68M $232.79M
R&D $181.94M $83.20M $276.36M
EPS (diluted) $0.67 $-3.60 $17.28
Cash & equivalents $380.40M $1.46B $1.58B
Total debt $573.16M $6.38B $107.67M
Shares (diluted) 135.20M 67.37M 107.70M
Enterprise value -$452.17M -$5.34B $12.58B

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
MetricENPHCSIQFSLR
P/E 46.0x -3.0x 11.2x
P/FCF 30.8x 2.3x 89.8x
P/Operating cash flow 21.9x -1.3x 24.9x
P/S 3.4x 0.1x 4.2x
P/B 3.4x 0.2x 1.9x
P/Tangible book 3.4x 0.2x 1.9x
EV/EBITDA 28.4x – 7.8x
EV/EBIT 75.1x -204.2x 10.3x
EV/Revenue 3.1x 1.1x 3.9x
EV/FCF 28.2x 18.1x 83.3x
EV/Operating cash flow 20.0x -10.0x 23.1x
PEG (3Y EPS CAGR) -1.03 0.08 0.19

Growth

14 metrics
MetricENPHCSIQFSLR
Revenue growth (1Y) -19.9% -15.7% -0.7%
Revenue CAGR (3Y) -23.6% -14.4% 16.6%
Gross profit growth (1Y) -24.4% -26.1% 22.1%
Gross profit CAGR (3Y) -23.2% -17.7% 42.2%
Operating income growth (1Y) -73.3% 48.9% 25.5%
Operating income CAGR (3Y) -56.4% -27.0% 65.9%
Net income growth (1Y) -53.6% -44.9% 32.9%
Net income CAGR (3Y) -45.9% -35.7% 57.8%
EPS growth (1Y) -54.3% -1,020% 32.7%
EPS CAGR (3Y) -44.7% -36.0% 57.7%
Operating cash flow growth (1Y) -25.5% -135.9% -48.4%
Operating cash flow CAGR (3Y) -40.7% -39.4% 0.1%
Free cash flow growth (1Y) -37.7% -51.2% -62.1%
Free cash flow CAGR (3Y) -44.9% -43.3% 34.6%

Profitability

14 metrics
MetricENPHCSIQFSLR
Gross margin 45.8% 16.4% 49.3%
EBITDA margin 11.1% – 49.5%
Operating margin 4.2% -0.6% 37.7%
Pretax margin 6.9% -3.7% 38.5%
Net margin 7.5% -4.9% 37.1%
FCF margin 11.2% 6.2% 4.6%
Operating cash flow margin 15.8% -11.4% 16.7%
Return on equity 7.5% -6.3% 17.6%
Return on assets 3.1% -1.6% 13.6%
Return on invested capital 2.8% -0.2% 17.1%
Return on capital employed 2.1% -0.3% 16.2%
Asset turnover 0.4x 0.3x 0.4x
Cash conversion (OCF / net income) 2.1x 2.3x 0.5x
Stock comp / revenue 15.6% – 0.5%

Financial Health

11 metrics
MetricENPHCSIQFSLR
Debt / assets 19.9% 39.6% 0.8%
Debt / equity 0.5x 1.6x 0.0x
Net debt / EBITDA -2.7x – -0.6x
Debt / FCF 4.2x 20.5x 0.5x
Liabilities / assets 56.8% 75.6% 22.4%
Equity / assets 43.2% 24.4% 77.6%
Interest coverage 24.0x -0.1x 70.3x
Current ratio 4.1x 1.0x 2.6x
Quick ratio 2.6x 0.4x 1.7x
Cash ratio 2.0x 0.2x 0.8x
Altman Z-score 2.53 0.47 5.89

Shareholder Returns

7 metrics
MetricENPHCSIQFSLR
Dividend yield – – –
Net buyback yield -0.2% – –
Shareholder yield -0.2% – –
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.

ConsensusENPHCSIQFSLR
Forward P/E 16.4xFY2026 – 10.5xFY2026
EPS, next fiscal year $1.92FY2026 $-2.62FY2026 $18.48FY2026
EPS growth, next FY -35.1%FY2026 – +30.0%FY2026
EPS growth, the year after +1.6% – +21.3%
Revenue, next fiscal year $1.15BFY2026 $5.88BFY2026 $5.34BFY2026
Revenue growth, next FY -21.8%FY2026 +5.0%FY2026 +2.3%FY2026
Revenue growth, the year after -3.4% +21.9% +16.7%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersENPHCSIQFSLR
Held by institutions 93.8% 60.5% 93.1%
Institutions holding 537 156 1,013
Change in shares held, QoQ -1.0% +23.0% +5.9%
Institutions buying 278 98 499
Institutions selling 188 32 356
Buyers to sellers 1.48 3.06 1.40

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.

ENPHCSIQFSLR
ENPH 1.00 0.44 0.49
CSIQ 0.44 1.00 0.50
FSLR 0.49 0.50 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, ENPH, CSIQ and FSLR?

First Solar (FSLR) is the largest by market capitalisation: Enphase Energy (ENPH) $3.86B, Canadian Solar (CSIQ) $696.25M, First Solar (FSLR) $21.21B.

Which stock is cheaper, ENPH, CSIQ and FSLR?

First Solar (FSLR) trades on the lowest price-to-earnings ratio (Enphase Energy (ENPH) 42.5x, Canadian Solar (CSIQ) -2.9x, First Solar (FSLR) 11.4x). On next year's consensus earnings, First Solar (FSLR) is cheapest (Enphase Energy (ENPH) 16.4x, First Solar (FSLR) 10.5x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

First Solar (FSLR) grew revenue fastest over the trailing twelve months: Enphase Energy (ENPH) -19.9%, Canadian Solar (CSIQ) -15.7%, First Solar (FSLR) -0.7%.

Which company is more profitable?

First Solar (FSLR) has the highest net margin (Enphase Energy (ENPH) 7.5%, Canadian Solar (CSIQ) -4.9%, First Solar (FSLR) 37.1%). On return on invested capital, First Solar (FSLR) leads (Enphase Energy (ENPH) 2.8%, Canadian Solar (CSIQ) -0.2%, First Solar (FSLR) 17.1%).

Which stock has performed better?

Over the past year Enphase Energy (ENPH) returned the most: Enphase Energy (ENPH) +8.8%, Canadian Solar (CSIQ) -51.0%, First Solar (FSLR) -26.0%. Over five years, First Solar (FSLR) compounded fastest (Enphase Energy (ENPH) -33.3%/yr, Canadian Solar (CSIQ) -22.4%/yr, First Solar (FSLR) +10.8%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, First Solar (FSLR) has been the steadiest (Enphase Energy (ENPH) 81.5%, Canadian Solar (CSIQ) 89.9%, First Solar (FSLR) 52.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ENPH, CSIQ and FSLR?

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 9. 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.