CALX vs FFIV vs FTNT Stock Comparison

Calix, F5 and Fortinet Prices as of Oct 26, 2026 Peers: Industry group
CALX Calix, Inc
$37.69 +13.7% 1M -38.5% 1Y
Market cap
$2.43B
P/E
47.5x
Revenue (TTM)
$1.11B
Div. yield
–
Networking Equipment Technology
3 wins
FFIV F5, Inc.
$461.60 +4.2% 1M +54.7% 1Y
Market cap
$26.15B
P/E
36.0x
Revenue (TTM)
$3.31B
Div. yield
–
Cybersecurity Software Technology
2 wins
FTNT Fortinet, Inc.
$183.33 +5.7% 1M +114.3% 1Y
Market cap
$135.52B
P/E
63.9x
Revenue (TTM)
$7.53B
Div. yield
–
Cybersecurity Software Technology
4 wins

Head to Head

9 decided of 12

Fortinet leads on 4 of the 12 questions below (Fortinet 4, Calix 3, F5 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCALXFFIVFTNTLeader
Larger companyMarket capitalisation $2.43B $26.15B $135.52B FTNT
Cheaper on earningsLower P/E, profitable companies only 47.5x 36.0x 63.9x FFIV
Cheaper on forward earningsLower price / next fiscal year consensus EPS 23.3x 28.4x 51.2x CALX
Faster revenue growthRevenue growth, trailing twelve months +27.8% +9.4% +18.8% CALX
More profitableNet margin, trailing twelve months 4.6% 22.0% 28.2% FTNT
Better return on capitalReturn on invested capital — — 111.7% –
Less leveragedLower net debt / EBITDA — — -1.2x –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -38.5% +54.7% +114.3% FTNT
Better 5-year returnAnnualised price return, 5 years -8.5%/yr +16.4%/yr +23.4%/yr FTNT
Less volatileAnnualised volatility, 1 year 41.6% 35.1% 42.8% FFIV
Higher overall scoreMean of the five percentile scores vs peers 76/100 64/100 69/100 CALX

Percentile Scorecard

CALXFFIVFTNT

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

AxisCALXFFIVFTNT
Valuation 59 #46 of 111 75 #32 of 124 49 #64 of 124
Growth 81 #21 of 108 40 #68 of 113 64 #41 of 113
Profitability 65 #37 of 104 94 #8 of 110 100 #1 of 110
Financial Health 75 #29 of 115 52 #63 of 129 55 #59 of 129
Shareholder Returns 98 #3 of 81 59 #28 of 67 76 #17 of 67
Overall 76 64 69
  • CALX ranked among 121 companies in Computer Hardware
  • FFIV ranked among 137 companies in Infrastructure Software
  • 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

PeriodCALXFFIVFTNTSPY
1 month +13.7%+4.2%+5.7% -0.8%
3 months +2.2%+13.1%+20.3% +3.5%
6 months -11.6%+55.0%+114.0% +7.0%
Year to date -28.8%+80.8%+130.9% +12.2%
1 year -38.5%+54.7%+114.3% +13.0%
3 years +15.2%+208.2%+225.9% +86.3%
3 years, per year +4.8%+45.6%+48.3% +23.1%
5 years -35.9%+113.7%+185.9% +68.6%
5 years, per year -8.5%+16.4%+23.4% +11.0%
10 years +493.5%+286.1%+2,935.3% +258.0%
10 years, per year +19.5%+14.5%+40.7% +13.6%

Risk

MeasureCALXFFIVFTNTSPY
Volatility, 1Y 41.6%35.1%42.8% 12.7%
Downside volatility, 1Y 44.0%34.6%37.8% 12.7%
Beta vs S&P 500, 1Y 0.881.080.99 1.00
Return / volatility, 1Y -0.921.562.67 1.02
Max drawdown, 5Y -65.3%-47.4%-38.3% -25.4%
From 52-week high -44.9%-3.8%-5.9% -1.8%
52-week high $68.42$479.83$194.75 $779.14
52-week low $33.15$223.99$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.

MultipleCALXFFIVFTNT
P/E now vs peer median 46.8xmedian 32.0x 36.0xmedian 38.1x 63.4xmedian 38.1x
P/S now vs peer median 2.1xmedian 2.8x 7.9xmedian 4.3x 17.9xmedian 4.3x
EV/EBITDA now vs peer median 27.5xmedian 19.4x 27.1xmedian 35.4x 44.1xmedian 35.4x
P/FCF now vs peer median 27.8xmedian 29.0x 27.1xmedian 27.1x 43.1xmedian 27.1x
P/B now vs peer median 3.3xmedian 2.9x 6.8xmedian 3.4x 86.7xmedian 3.4x
PEG now vs peer median 6.61median 1.13 1.13median 1.27 2.18median 1.27

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 monthsCALXFFIVFTNT
Revenue $1.11B $3.31B $7.53B
Gross profit $628.73M $2.71B $6.04B
Operating income $61.25M $812.13M $2.44B
Net income $51.19M $726.51M $2.12B
Free cash flow $85.42M $969.60M $3.12B
R&D $207.99M $593.25M $846.40M
EPS (diluted) $0.78 $12.62 $2.87
Cash & equivalents $68.91M $1.61B $2.93B
Total debt – – $2.99B
Shares (diluted) 65.51M 57.55M 739.90M
Enterprise value $1.27B $20.55B $121.45B

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
MetricCALXFFIVFTNT
P/E 46.8x 36.0x 63.4x
P/FCF 27.8x 27.1x 43.1x
P/Operating cash flow 21.7x 25.0x 39.6x
P/S 2.1x 7.9x 17.9x
P/B 3.3x 6.8x 86.7x
P/Tangible book 3.3x 6.8x 91.2x
EV/EBITDA 27.5x 27.1x 44.1x
EV/EBIT 35.6x 30.3x 53.6x
EV/Revenue 2.0x 7.4x 17.4x
EV/FCF 25.5x 25.4x 42.0x
EV/Operating cash flow 19.9x 23.5x 38.5x
PEG (3Y EPS CAGR) 6.61 1.13 2.18

Growth

14 metrics
MetricCALXFFIVFTNT
Revenue growth (1Y) 27.8% 9.4% 18.8%
Revenue CAGR (3Y) 3.9% 5.7% 14.7%
Gross profit growth (1Y) 30.3% 10.5% 17.2%
Gross profit CAGR (3Y) 7.4% 7.1% 16.6%
Operating income growth (1Y) 273.3% 8.1% 24.8%
Operating income CAGR (3Y) 3.8% 25.8% 27.6%
Net income growth (1Y) 290.5% 8.9% 9.3%
Net income CAGR (3Y) 4.9% 29.8% 26.0%
EPS growth (1Y) 287.6% 10.7% 14.2%
EPS CAGR (3Y) 7.1% 31.9% 29.1%
Operating cash flow growth (1Y) 24.5% 6.2% 41.5%
Operating cash flow CAGR (3Y) 41.8% 19.3% 15.5%
Free cash flow growth (1Y) 19.4% 1.5% 53.3%
Free cash flow CAGR (3Y) 62.0% 19.3% 16.4%

Profitability

14 metrics
MetricCALXFFIVFTNT
Gross margin 56.6% 81.9% 80.2%
EBITDA margin 7.1% 27.5% 39.4%
Operating margin 5.5% 24.5% 32.4%
Pretax margin 6.5% 25.8% 34.8%
Net margin 4.6% 22.0% 28.2%
FCF margin 7.7% 29.3% 41.4%
Operating cash flow margin 9.9% 31.7% 45.1%
Return on equity 7.1% 19.4% 166.9%
Return on assets 5.4% 10.9% 20.4%
Return on invested capital – – 111.7%
Return on capital employed 8.2% 16.6% 44.2%
Asset turnover 1.2x 0.5x 0.7x
Cash conversion (OCF / net income) 2.1x 1.4x 1.6x
Stock comp / revenue 7.2% 7.6% 3.9%

Financial Health

11 metrics
MetricCALXFFIVFTNT
Debt / assets – – 4.6%
Debt / equity – – 0.3x
Net debt / EBITDA – – -1.2x
Debt / FCF – – 0.2x
Liabilities / assets 25.6% 43.5% 85.7%
Equity / assets 74.4% 56.5% 14.3%
Interest coverage – – 135.7x
Current ratio 2.8x 1.7x 1.3x
Quick ratio 1.6x 1.5x 1.1x
Cash ratio 0.9x 0.9x 0.8x
Altman Z-score 7.18 7.16 10.21

Shareholder Returns

7 metrics
MetricCALXFFIVFTNT
Dividend yield – – –
Net buyback yield 8.1% 0.6% 2.1%
Shareholder yield 8.1% 0.6% 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.

ConsensusCALXFFIVFTNT
Forward P/E 23.3xFY2026 28.4xFY2026 51.2xFY2026
EPS, next fiscal year $1.62FY2026 $16.24FY2026 $3.58FY2026
EPS growth, next FY +20.9%FY2026 +2.7%FY2026 +29.7%FY2026
EPS growth, the year after +48.1% +5.0% +0.8%
Revenue, next fiscal year $1.11BFY2026 $3.52BFY2026 $8.38BFY2026
Revenue growth, next FY +11.0%FY2026 +13.8%FY2026 +23.2%FY2026
Revenue growth, the year after +18.8% +6.4% +13.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCALXFFIVFTNT
Held by institutions 94.5% 96.6% 68.6%
Institutions holding 288 831 1,567
Change in shares held, QoQ +0.5% -2.6% +23.7%
Institutions buying 148 483 854
Institutions selling 111 240 549
Buyers to sellers 1.33 2.01 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.

CALXFFIVFTNT
CALX 1.00 0.24 0.04
FFIV 0.24 1.00 0.44
FTNT 0.04 0.44 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CALX, FFIV and FTNT?

Fortinet (FTNT) is the largest by market capitalisation: Calix (CALX) $2.43B, F5 (FFIV) $26.15B, Fortinet (FTNT) $135.52B.

Which stock is cheaper, CALX, FFIV and FTNT?

F5 (FFIV) trades on the lowest price-to-earnings ratio (Calix (CALX) 47.5x, F5 (FFIV) 36.0x, Fortinet (FTNT) 63.9x). On next year's consensus earnings, Calix (CALX) is cheapest (Calix (CALX) 23.3x, F5 (FFIV) 28.4x, Fortinet (FTNT) 51.2x). 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%, F5 (FFIV) +9.4%, Fortinet (FTNT) +18.8%.

Which company is more profitable?

Fortinet (FTNT) has the highest net margin (Calix (CALX) 4.6%, F5 (FFIV) 22.0%, Fortinet (FTNT) 28.2%).

Which stock has performed better?

Over the past year Fortinet (FTNT) returned the most: Calix (CALX) -38.5%, F5 (FFIV) +54.7%, Fortinet (FTNT) +114.3%. Over five years, Fortinet (FTNT) compounded fastest (Calix (CALX) -8.5%/yr, F5 (FFIV) +16.4%/yr, Fortinet (FTNT) +23.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, F5 (FFIV) has been the steadiest (Calix (CALX) 41.6%, F5 (FFIV) 35.1%, Fortinet (FTNT) 42.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CALX, FFIV 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 4. 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.