CALX vs EXTR vs FTNT Stock Comparison

Calix, Extreme Networks and Fortinet Prices as of Oct 27, 2026 Peers: Industry group
CALX Calix, Inc
$38.33 +15.6% 1M -37.2% 1Y
Market cap
$2.38B
P/E
46.5x
Revenue (TTM)
$1.11B
Div. yield
–
Networking Equipment Technology
4 wins
EXTR Extreme Networks Inc
$23.85 +10.8% 1M +15.0% 1Y
Market cap
$3.15B
P/E
74.9x
Revenue (TTM)
$1.28B
Div. yield
–
Networking Equipment Technology
1 win
FTNT Fortinet, Inc.
$185.00 +6.7% 1M +116.9% 1Y
Market cap
$131.49B
P/E
62.0x
Revenue (TTM)
$7.53B
Div. yield
–
Cybersecurity Software Technology
6 wins

Head to Head

11 decided of 12

Fortinet leads on 6 of the 12 questions below (Fortinet 6, Calix 4, Extreme Networks 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCALXEXTRFTNTLeader
Larger companyMarket capitalisation $2.38B $3.15B $131.49B FTNT
Cheaper on earningsLower P/E, profitable companies only 46.5x 74.9x 62.0x CALX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 23.7x 17.3x 51.7x EXTR
Faster revenue growthRevenue growth, trailing twelve months +27.8% +12.6% +18.8% CALX
More profitableNet margin, trailing twelve months 4.6% 3.3% 28.2% FTNT
Better return on capitalReturn on invested capital — 19.4% 111.7% FTNT
Less leveragedLower net debt / EBITDA — -0.6x -1.2x FTNT
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -37.2% +15.0% +116.9% FTNT
Better 5-year returnAnnualised price return, 5 years -8.8%/yr +19.1%/yr +23.1%/yr FTNT
Less volatileAnnualised volatility, 1 year 41.6% 55.6% 42.7% CALX
Higher overall scoreMean of the five percentile scores vs peers 76/100 52/100 69/100 CALX

Percentile Scorecard

CALXEXTRFTNT

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

AxisCALXEXTRFTNT
Valuation 60 #45 of 112 36 #72 of 112 49 #64 of 124
Growth 82 #20 of 109 42 #64 of 109 64 #41 of 113
Profitability 64 #38 of 104 69 #33 of 104 100 #1 of 109
Financial Health 76 #29 of 116 24 #89 of 116 54 #59 of 127
Shareholder Returns 98 #3 of 81 89 #10 of 81 77 #16 of 65
Overall 76 52 69
  • CALX ranked among 122 companies in Computer Hardware
  • EXTR ranked among 122 companies in Computer Hardware
  • FTNT ranked among 137 companies in Infrastructure Software

Price Performance

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

Returns

PeriodCALXEXTRFTNTSPY
1 month +15.6%+10.8%+6.7% -0.2%
3 months +3.3%-20.5%+23.3% +3.9%
6 months -8.8%+39.9%+115.8% +8.2%
Year to date -27.6%+43.2%+133.0% +12.9%
1 year -37.2%+15.0%+116.9% +12.3%
3 years +17.2%+16.1%+228.8% +87.4%
3 years, per year +5.4%+5.1%+48.7% +23.3%
5 years -36.9%+139.5%+182.5% +67.9%
5 years, per year -8.8%+19.1%+23.1% +10.9%
10 years +508.4%+470.6%+2,993.6% +261.1%
10 years, per year +19.8%+19.0%+41.0% +13.7%

Risk

MeasureCALXEXTRFTNTSPY
Volatility, 1Y 41.6%55.6%42.7% 12.7%
Downside volatility, 1Y 44.0%56.6%37.8% 12.7%
Beta vs S&P 500, 1Y 0.881.560.99 1.00
Return / volatility, 1Y -0.890.272.74 0.97
Max drawdown, 5Y -65.3%-67.2%-38.3% -25.4%
From 52-week high -44.0%-29.2%-5.0% -1.2%
52-week high $68.42$33.71$194.75 $779.14
52-week low $33.15$13.74$75.23 $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.

MultipleCALXEXTRFTNT
P/E now vs peer median 47.6xmedian 33.2x 75.2xmedian 33.2x 64.0xmedian 38.6x
P/S now vs peer median 2.2xmedian 2.8x 2.4xmedian 2.8x 18.0xmedian 4.4x
EV/EBITDA now vs peer median 28.0xmedian 20.0x 35.8xmedian 20.0x 44.5xmedian 34.5x
P/FCF now vs peer median 28.3xmedian 29.8x 32.9xmedian 29.8x 43.5xmedian 29.4x
P/B now vs peer median 3.4xmedian 3.0x 35.3xmedian 3.0x 87.5xmedian 3.3x
PEG now vs peer median 6.72median 1.17 -3.99median 1.17 2.20median 1.28

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 monthsCALXEXTRFTNT
Revenue $1.11B $1.28B $7.53B
Gross profit $628.73M $789.14M $6.04B
Operating income $61.25M $62.70M $2.44B
Net income $51.19M $42.12M $2.12B
Free cash flow $85.42M $95.24M $3.12B
R&D $207.99M $233.88M $846.40M
EPS (diluted) $0.78 $0.31 $2.87
Cash & equivalents $68.91M $211.76M $2.93B
Total debt – $163.72M $2.99B
Shares (diluted) 65.51M 134.97M 739.90M
Enterprise value $1.22B $2.30B $117.42B

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
MetricCALXEXTRFTNT
P/E 47.6x 75.2x 64.0x
P/FCF 28.3x 32.9x 43.5x
P/Operating cash flow 22.0x 25.4x 40.0x
P/S 2.2x 2.4x 18.0x
P/B 3.4x 35.3x 87.5x
P/Tangible book 3.4x 36.6x 92.1x
EV/EBITDA 28.0x 35.8x 44.5x
EV/EBIT 36.2x 49.2x 54.1x
EV/Revenue 2.0x 2.4x 17.6x
EV/FCF 26.0x 32.4x 42.4x
EV/Operating cash flow 20.3x 25.0x 38.9x
PEG (3Y EPS CAGR) 6.72 -3.99 2.20

Growth

14 metrics
MetricCALXEXTRFTNT
Revenue growth (1Y) 27.8% 12.6% 18.8%
Revenue CAGR (3Y) 3.9% -0.7% 14.7%
Gross profit growth (1Y) 30.3% 11.3% 17.2%
Gross profit CAGR (3Y) 7.4% 1.5% 16.6%
Operating income growth (1Y) 273.3% 269.9% 24.8%
Operating income CAGR (3Y) 3.8% -16.7% 27.6%
Net income growth (1Y) 290.5% 664.1% 9.3%
Net income CAGR (3Y) 4.9% -18.6% 26.0%
EPS growth (1Y) 287.6% 653.0% 14.2%
EPS CAGR (3Y) 7.1% -18.9% 29.1%
Operating cash flow growth (1Y) 24.5% -19.0% 41.5%
Operating cash flow CAGR (3Y) 41.8% -20.9% 15.5%
Free cash flow growth (1Y) 19.4% -25.2% 53.3%
Free cash flow CAGR (3Y) 62.0% -26.0% 16.4%

Profitability

14 metrics
MetricCALXEXTRFTNT
Gross margin 56.6% 61.5% 80.2%
EBITDA margin 7.1% 6.7% 39.4%
Operating margin 5.5% 4.9% 32.4%
Pretax margin 6.5% 4.0% 34.8%
Net margin 4.6% 3.3% 28.2%
FCF margin 7.7% 7.4% 41.4%
Operating cash flow margin 9.9% 9.6% 45.1%
Return on equity 7.1% 50.3% 166.9%
Return on assets 5.4% 3.6% 20.4%
Return on invested capital – 19.4% 111.7%
Return on capital employed 8.2% 10.8% 44.2%
Asset turnover 1.2x 1.1x 0.7x
Cash conversion (OCF / net income) 2.1x 2.9x 1.6x
Stock comp / revenue 7.2% 6.9% 3.9%

Financial Health

11 metrics
MetricCALXEXTRFTNT
Debt / assets – 13.9% 4.6%
Debt / equity – 1.8x 0.3x
Net debt / EBITDA – -0.6x -1.2x
Debt / FCF – 1.7x 0.2x
Liabilities / assets 25.6% 92.5% 85.7%
Equity / assets 74.4% 7.5% 14.3%
Interest coverage – 4.5x 135.7x
Current ratio 2.8x 0.9x 1.3x
Quick ratio 1.6x 0.6x 1.1x
Cash ratio 0.9x 0.4x 0.8x
Altman Z-score 7.28 1.87 10.29

Shareholder Returns

7 metrics
MetricCALXEXTRFTNT
Dividend yield – – –
Net buyback yield 7.9% 2.8% 2.1%
Shareholder yield 7.9% 2.8% 2.1%
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.

ConsensusCALXEXTRFTNT
Forward P/E 23.7xFY2026 17.3xFY2027 51.7xFY2026
EPS, next fiscal year $1.62FY2026 $1.38FY2027 $3.58FY2026
EPS growth, next FY +20.9%FY2026 +30.2%FY2027 +29.7%FY2026
EPS growth, the year after +48.1% +2.9% +0.8%
Revenue, next fiscal year $1.11BFY2026 $1.34BFY2027 $8.38BFY2026
Revenue growth, next FY +11.0%FY2026 +4.5%FY2027 +23.2%FY2026
Revenue growth, the year after +18.8% +21.3% +13.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCALXEXTRFTNT
Held by institutions 94.5% 96.7% 68.6%
Institutions holding 288 338 1,567
Change in shares held, QoQ +0.5% +1.2% +23.7%
Institutions buying 148 181 854
Institutions selling 111 121 549
Buyers to sellers 1.33 1.50 1.56

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.

CALXEXTRFTNT
CALX 1.00 0.29 0.04
EXTR 0.29 1.00 0.26
FTNT 0.04 0.26 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CALX, EXTR and FTNT?

Fortinet (FTNT) is the largest by market capitalisation: Calix (CALX) $2.38B, Extreme Networks (EXTR) $3.15B, Fortinet (FTNT) $131.49B.

Which stock is cheaper, CALX, EXTR and FTNT?

Calix (CALX) trades on the lowest price-to-earnings ratio (Calix (CALX) 46.5x, Extreme Networks (EXTR) 74.9x, Fortinet (FTNT) 62.0x). On next year's consensus earnings, Extreme Networks (EXTR) is cheapest (Calix (CALX) 23.7x, Extreme Networks (EXTR) 17.3x, Fortinet (FTNT) 51.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Calix (CALX) grew revenue fastest over the trailing twelve months: Calix (CALX) +27.8%, Extreme Networks (EXTR) +12.6%, Fortinet (FTNT) +18.8%.

Which company is more profitable?

Fortinet (FTNT) has the highest net margin (Calix (CALX) 4.6%, Extreme Networks (EXTR) 3.3%, Fortinet (FTNT) 28.2%). On return on invested capital, Fortinet (FTNT) leads (Extreme Networks (EXTR) 19.4%, Fortinet (FTNT) 111.7%).

Which stock has performed better?

Over the past year Fortinet (FTNT) returned the most: Calix (CALX) -37.2%, Extreme Networks (EXTR) +15.0%, Fortinet (FTNT) +116.9%. Over five years, Fortinet (FTNT) compounded fastest (Calix (CALX) -8.8%/yr, Extreme Networks (EXTR) +19.1%/yr, Fortinet (FTNT) +23.1%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Calix (CALX) has been the steadiest (Calix (CALX) 41.6%, Extreme Networks (EXTR) 55.6%, Fortinet (FTNT) 42.7%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CALX, EXTR and FTNT?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Fortinet (FTNT) 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.