CALX vs AUDC vs EXTR Stock Comparison

Calix, Audiocodes and Extreme Networks Prices as of Nov 2, 2026 Peers: Industry group
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CALX Calix, Inc
$36.19 +4.0% 1M -47.1% 1Y
Market cap
$2.09B
P/E
45.6x
Revenue (TTM)
$1.15B
Div. yield
–
Networking Equipment Technology
4 wins
AUDC Audiocodes Ltd
$10.64 -4.1% 1M +19.1% 1Y
Market cap
$238.81M
P/E
33.8x
Revenue (TTM)
$249.25M
Div. yield
–
Networking Equipment Technology
4 wins
EXTR Extreme Networks Inc
$22.29 -3.6% 1M +17.2% 1Y
Market cap
$3.04B
P/E
57.8x
Revenue (TTM)
$1.31B
Div. yield
–
Networking Equipment Technology
3 wins

Head to Head

11 decided of 12

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

QuestionCALXAUDCEXTRLeader
Larger companyMarket capitalisation $2.09B $238.81M $3.04B EXTR
Cheaper on earningsLower P/E, profitable companies only 45.6x 33.8x 57.8x AUDC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 20.5x 16.2x 16.5x AUDC
Faster revenue growthRevenue growth, trailing twelve months +27.8% +2.5% +11.3% CALX
More profitableNet margin, trailing twelve months 4.6% 2.8% 4.0% CALX
Better return on capitalReturn on invested capital — 9.1% 23.5% EXTR
Less leveragedLower net debt / EBITDA — -2.9x -0.4x AUDC
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -47.1% +19.1% +17.2% AUDC
Better 5-year returnAnnualised price return, 5 years -13.0%/yr -21.8%/yr +13.3%/yr EXTR
Less volatileAnnualised volatility, 1 year 40.8% 42.5% 53.2% CALX
Higher overall scoreMean of the five percentile scores vs peers 75/100 56/100 58/100 CALX

Percentile Scorecard

CALXAUDCEXTR

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

AxisCALXAUDCEXTR
Valuation 59 #47 of 112 88 #14 of 112 50 #57 of 112
Growth 82 #20 of 108 17 #90 of 108 51 #54 of 108
Profitability 64 #38 of 104 68 #34 of 104 76 #26 of 104
Financial Health 75 #30 of 116 69 #37 of 116 24 #89 of 116
Shareholder Returns 98 #3 of 80 38 #50 of 80 90 #9 of 80
Overall 75 56 58
  • CALX ranked among 121 companies in Computer Hardware
  • AUDC ranked among 121 companies in Computer Hardware
  • EXTR ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodCALXAUDCEXTRSPY
1 month +4.0%-4.1%-3.6% -2.3%
3 months -3.2%+8.6%-25.7% -0.7%
6 months -16.7%+4.9%-2.4% +4.8%
Year to date -31.6%+21.9%+33.9% +10.3%
1 year -47.1%+19.1%+17.2% +10.3%
3 years +1.7%+7.3%+32.7% +73.0%
3 years, per year +0.6%+2.4%+9.9% +20.1%
5 years -50.0%-70.6%+87.0% +61.9%
5 years, per year -13.0%-21.8%+13.3% +10.1%
10 years +444.2%+98.9%+414.8% +258.6%
10 years, per year +18.5%+7.1%+17.8% +13.6%

Risk

MeasureCALXAUDCEXTRSPY
Volatility, 1Y 40.8%42.5%53.2% 12.8%
Downside volatility, 1Y 44.0%47.6%51.5% 12.8%
Beta vs S&P 500, 1Y 0.981.181.62 1.00
Return / volatility, 1Y -1.160.450.32 0.80
Max drawdown, 5Y -65.3%-81.0%-67.2% -25.4%
From 52-week high -46.2%-9.1%-33.9% -3.5%
52-week high $67.24$11.70$33.71 $779.14
52-week low $33.15$7.03$13.74 $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.

MultipleCALXAUDCEXTR
P/E now vs peer median 44.9xmedian 29.9x 42.9xmedian 29.9x 55.9xmedian 29.9x
P/S now vs peer median 2.1xmedian 2.8x 1.2xmedian 2.8x 2.2xmedian 2.8x
EV/EBITDA now vs peer median 26.3xmedian 18.5x 12.4xmedian 18.5x 29.0xmedian 18.5x
P/FCF now vs peer median 26.7xmedian 28.0x 8.8xmedian 28.0x 19.0xmedian 28.0x
P/B now vs peer median 3.2xmedian 2.8x 2.0xmedian 2.8x 33.5xmedian 2.8x
PEG now vs peer median 6.35median 1.00 -2.54median 1.00 -3.11median 1.00

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 monthsCALXAUDCEXTR
Revenue $1.15B $249.25M $1.31B
Gross profit $637.49M $163.86M $813.05M
Operating income $60.39M $14.36M $74.49M
Net income $45.75M $7.06M $52.49M
Free cash flow $62.16M $32.61M $154.76M
R&D $215.00M $54.05M $233.95M
EPS (diluted) $0.71 $0.24 $0.39
Cash & equivalents $55.89M $51.41M $244.52M
Total debt – $7.43M $200.00M
Shares (diluted) 64.45M 28.98M 134.68M
Enterprise value $1.11B -$34.32M $2.15B

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
MetricCALXAUDCEXTR
P/E 44.9x 42.9x 55.9x
P/FCF 26.7x 8.8x 19.0x
P/Operating cash flow 20.8x 10.6x 16.1x
P/S 2.1x 1.2x 2.2x
P/B 3.2x 2.0x 33.5x
P/Tangible book 3.2x 2.7x 34.5x
EV/EBITDA 26.3x 12.4x 29.0x
EV/EBIT 34.0x 16.3x 39.0x
EV/Revenue 1.9x 0.9x 2.2x
EV/FCF 24.4x 7.2x 18.8x
EV/Operating cash flow 19.0x 8.6x 15.9x
PEG (3Y EPS CAGR) 6.35 -2.54 -3.11

Growth

14 metrics
MetricCALXAUDCEXTR
Revenue growth (1Y) 27.8% 2.5% 11.3%
Revenue CAGR (3Y) 3.9% -1.3% -1.3%
Gross profit growth (1Y) 30.3% 3.5% 11.7%
Gross profit CAGR (3Y) 7.4% -0.2% 0.5%
Operating income growth (1Y) 273.3% -5.7% 126.0%
Operating income CAGR (3Y) 3.8% -5.0% -16.3%
Net income growth (1Y) 290.5% -48.7% 506.9%
Net income CAGR (3Y) 4.9% -20.0% -17.7%
EPS growth (1Y) 287.6% -45.8% 508.7%
EPS CAGR (3Y) 7.1% -16.9% -18.0%
Operating cash flow growth (1Y) 24.5% -38.9% 52.9%
Operating cash flow CAGR (3Y) 41.8% 50.4% -12.8%
Free cash flow growth (1Y) 19.4% -42.4% 63.2%
Free cash flow CAGR (3Y) 62.0% 39.0% -15.9%

Profitability

14 metrics
MetricCALXAUDCEXTR
Gross margin 56.6% 65.7% 61.9%
EBITDA margin 7.1% 7.6% 7.6%
Operating margin 5.5% 5.8% 5.7%
Pretax margin 6.5% 4.5% 4.7%
Net margin 4.6% 2.8% 4.0%
FCF margin 7.7% 13.1% 11.8%
Operating cash flow margin 9.9% 10.9% 13.9%
Return on equity 7.1% 10.3% 59.4%
Return on assets 5.4% 5.0% 4.2%
Return on invested capital – 9.1% 23.5%
Return on capital employed 8.2% 6.5% 12.8%
Asset turnover 1.2x 0.8x 1.1x
Cash conversion (OCF / net income) 2.1x 3.8x 3.5x
Stock comp / revenue 7.2% 2.4% 6.7%

Financial Health

11 metrics
MetricCALXAUDCEXTR
Debt / assets – 2.4% 15.4%
Debt / equity – 0.1x 2.3x
Net debt / EBITDA – -2.9x -0.4x
Debt / FCF – 0.2x 1.3x
Liabilities / assets 25.6% 52.8% 93.2%
Equity / assets 74.4% 47.2% 6.8%
Interest coverage – – 4.9x
Current ratio 2.8x 1.9x 1.0x
Quick ratio 1.6x 1.4x 0.6x
Cash ratio 0.9x 0.7x 0.4x
Altman Z-score 6.95 – 1.71

Shareholder Returns

7 metrics
MetricCALXAUDCEXTR
Dividend yield – 3.8% –
Net buyback yield 8.4% -14.4% 3.4%
Shareholder yield 8.4% -10.6% 3.4%
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.

ConsensusCALXAUDCEXTR
Forward P/E 20.5xFY2026 16.2xFY2026 16.5xFY2027
EPS, next fiscal year $1.62FY2026 $0.64FY2026 $1.38FY2027
EPS growth, next FY +20.9%FY2026 +4.9%FY2026 +30.2%FY2027
EPS growth, the year after +48.1% +3.1% +2.9%
Revenue, next fiscal year $1.11BFY2026 $265.51MFY2026 $1.34BFY2027
Revenue growth, next FY +11.0%FY2026 +8.1%FY2026 +4.5%FY2027
Revenue growth, the year after +18.8% +1.2% +21.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCALXAUDCEXTR
Held by institutions 94.5% 33.5% 96.7%
Institutions holding 290 67 338
Change in shares held, QoQ +0.5% +7.5% +1.2%
Institutions buying 148 31 181
Institutions selling 111 20 121
Buyers to sellers 1.33 1.55 1.50

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.

CALXAUDCEXTR
CALX 1.00 0.22 0.31
AUDC 0.22 1.00 0.28
EXTR 0.31 0.28 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CALX, AUDC and EXTR?

Extreme Networks (EXTR) is the largest by market capitalisation: Calix (CALX) $2.09B, Audiocodes (AUDC) $238.81M, Extreme Networks (EXTR) $3.04B.

Which stock is cheaper, CALX, AUDC and EXTR?

Audiocodes (AUDC) trades on the lowest price-to-earnings ratio (Calix (CALX) 45.6x, Audiocodes (AUDC) 33.8x, Extreme Networks (EXTR) 57.8x). On next year's consensus earnings, Audiocodes (AUDC) is cheapest (Calix (CALX) 20.5x, Audiocodes (AUDC) 16.2x, Extreme Networks (EXTR) 16.5x). 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%, Audiocodes (AUDC) +2.5%, Extreme Networks (EXTR) +11.3%.

Which company is more profitable?

Calix (CALX) has the highest net margin (Calix (CALX) 4.6%, Audiocodes (AUDC) 2.8%, Extreme Networks (EXTR) 4.0%). On return on invested capital, Extreme Networks (EXTR) leads (Audiocodes (AUDC) 9.1%, Extreme Networks (EXTR) 23.5%).

Which stock has performed better?

Over the past year Audiocodes (AUDC) returned the most: Calix (CALX) -47.1%, Audiocodes (AUDC) +19.1%, Extreme Networks (EXTR) +17.2%. Over five years, Extreme Networks (EXTR) compounded fastest (Calix (CALX) -13.0%/yr, Audiocodes (AUDC) -21.8%/yr, Extreme Networks (EXTR) +13.3%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Calix (CALX) has been the steadiest (Calix (CALX) 40.8%, Audiocodes (AUDC) 42.5%, Extreme Networks (EXTR) 53.2%). Volatility measures how widely the price swings, not the risk of the business.

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

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