DOX vs AAOI vs EXTR Stock Comparison

Amdocs, Applied Optoelectronics and Extreme Networks Prices as of Oct 23, 2026 Peers: Industry group
DOX Amdocs Ltd
$62.74 +7.5% 1M -24.9% 1Y
Market cap
$6.97B
P/E
15.3x
Revenue (TTM)
$4.65B
Div. yield
–
Networking Equipment Technology
6 wins
EXTR Extreme Networks Inc
$21.97 -0.3% 1M +3.9% 1Y
Market cap
$3.01B
P/E
71.5x
Revenue (TTM)
$1.28B
Div. yield
–
Networking Equipment Technology
2 wins

Head to Head

11 decided of 12

Amdocs leads on 6 of the 12 questions below (Amdocs 6, Applied Optoelectronics 3, Extreme Networks 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionDOXAAOIEXTRLeader
Larger companyMarket capitalisation $6.97B $5.87B $3.01B DOX
Cheaper on earningsLower P/E, profitable companies only 15.3x -102.9x 71.5x DOX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 7.9x 95.1x 15.9x DOX
Faster revenue growthRevenue growth, trailing twelve months +0.1% +61.8% +12.6% AAOI
More profitableNet margin, trailing twelve months 9.8% -9.6% 3.3% DOX
Better return on capitalReturn on invested capital — -4.2% 19.4% EXTR
Less leveragedLower net debt / EBITDA 0.9x 13.8x -0.6x EXTR
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -24.9% +115.0% +3.9% AAOI
Better 5-year returnAnnualised price return, 5 years -5.0%/yr +55.2%/yr +17.6%/yr AAOI
Less volatileAnnualised volatility, 1 year 29.8% 139.0% 55.3% DOX
Higher overall scoreMean of the five percentile scores vs peers 64/100 33/100 52/100 DOX

Percentile Scorecard

DOXAAOIEXTR

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

AxisDOXAAOIEXTR
Valuation 90 #12 of 112 13 #98 of 112 37 #71 of 112
Growth 15 #93 of 109 56 #49 of 109 41 #65 of 109
Profitability 84 #18 of 105 16 #88 of 105 71 #31 of 105
Financial Health 38 #73 of 117 72 #33 of 117 23 #90 of 117
Shareholder Returns 95 #5 of 82 7 #76 of 82 88 #11 of 82
Overall 64 33 52
  • DOX ranked among 122 companies in Computer Hardware
  • AAOI ranked among 122 companies in Computer Hardware
  • EXTR ranked among 122 companies in Computer Hardware

Price Performance

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

Returns

PeriodDOXAAOIEXTRSPY
1 month +7.5%-33.2%-0.3% -1.0%
3 months +20.4%-32.6%-25.5% +2.9%
6 months -3.9%-58.4%+24.9% +6.4%
Year to date -22.1%+93.7%+32.0% +11.4%
1 year -24.9%+115.0%+3.9% +13.1%
3 years -21.7%+807.4%+4.5% +79.4%
3 years, per year -7.8%+108.7%+1.5% +21.5%
5 years -22.7%+800.1%+124.9% +67.7%
5 years, per year -5.0%+55.2%+17.6% +10.9%
10 years +6.4%+228.3%+441.1% +255.2%
10 years, per year +0.6%+12.6%+18.4% +13.5%

Risk

MeasureDOXAAOIEXTRSPY
Volatility, 1Y 29.8%139.0%55.3% 12.7%
Downside volatility, 1Y 32.6%126.6%56.2% 12.7%
Beta vs S&P 500, 1Y 0.264.331.51 1.00
Return / volatility, 1Y -0.840.830.07 1.03
Max drawdown, 5Y -49.5%-82.6%-67.2% -25.4%
From 52-week high -26.6%-69.7%-34.8% -2.5%
52-week high $85.49$223.10$33.71 $779.14
52-week low $49.87$19.49$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.

MultipleDOXAAOIEXTR
P/E now vs peer median 15.3xmedian 31.3x -96.6xmedian 31.3x 69.2xmedian 31.3x
P/S now vs peer median 1.5xmedian 2.6x 9.6xmedian 2.6x 2.2xmedian 2.6x
EV/EBITDA now vs peer median 9.0xmedian 19.6x -163.7xmedian 19.6x 32.9xmedian 19.6x
P/FCF now vs peer median 7.9xmedian 28.3x -9.5xmedian 28.3x 30.3xmedian 28.3x
P/B now vs peer median 2.0xmedian 2.9x 3.4xmedian 2.9x 32.5xmedian 2.9x
PEG now vs peer median -4.18median 1.15 -2.91median 1.15 -3.67median 1.15

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 monthsDOXAAOIEXTR
Revenue $4.65B $595.97M $1.28B
Gross profit $1.78B $172.33M $789.14M
Operating income $626.70M -$67.41M $62.70M
Net income $457.53M -$57.02M $42.12M
Free cash flow $858.80M -$600.81M $95.24M
R&D $343.21M $107.61M $233.88M
EPS (diluted) $4.17 $-0.70 $0.31
Cash & equivalents $206.45M $499.74M $211.76M
Total debt $3.25B $160.44M $731.31M
Shares (diluted) 109.66M 81.57M 134.97M
Enterprise value $5.98B $4.59B $2.16B

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
MetricDOXAAOIEXTR
P/E 15.3x -96.6x 69.2x
P/FCF 7.9x -9.5x 30.3x
P/Operating cash flow 9.1x -43.2x 23.4x
P/S 1.5x 9.6x 2.2x
P/B 2.0x 3.4x 32.5x
P/Tangible book 2.2x 3.4x 33.7x
EV/EBITDA 9.0x -163.7x 32.9x
EV/EBIT 12.0x -78.0x 45.2x
EV/Revenue 1.6x 8.8x 2.2x
EV/FCF 8.8x -8.7x 29.8x
EV/Operating cash flow 10.0x -39.9x 23.0x
PEG (3Y EPS CAGR) -4.18 -2.91 -3.67

Growth

14 metrics
MetricDOXAAOIEXTR
Revenue growth (1Y) 0.1% 61.8% 12.6%
Revenue CAGR (3Y) -1.1% 40.9% -0.7%
Gross profit growth (1Y) 2.9% 62.0% 11.3%
Gross profit CAGR (3Y) 1.5% 73.3% 1.5%
Operating income growth (1Y) -11.9% -40.6% 269.9%
Operating income CAGR (3Y) -3.0% -2.8% -16.7%
Net income growth (1Y) -18.0% 63.4% 664.1%
Net income CAGR (3Y) -7.0% 6.2% -18.6%
EPS growth (1Y) -14.5% 74.5% 653.0%
EPS CAGR (3Y) -3.7% 33.2% -18.9%
Operating cash flow growth (1Y) 1.6% 15.2% -19.0%
Operating cash flow CAGR (3Y) -0.8% -168.6% -20.9%
Free cash flow growth (1Y) 2.8% -146.3% -25.2%
Free cash flow CAGR (3Y) -3.2% -294.2% -26.0%

Profitability

14 metrics
MetricDOXAAOIEXTR
Gross margin 38.3% 28.9% 61.5%
EBITDA margin 17.9% -5.4% 6.7%
Operating margin 13.5% -11.3% 4.9%
Pretax margin 12.5% -10.6% 4.0%
Net margin 9.8% -9.6% 3.3%
FCF margin 18.5% -100.8% 7.4%
Operating cash flow margin 16.1% -22.1% 9.6%
Return on equity – -4.1% 50.3%
Return on assets 7.2% -2.9% 3.6%
Return on invested capital – -4.2% 19.4%
Return on capital employed 13.4% -4.5% 10.8%
Asset turnover 0.7x 0.3x 1.1x
Cash conversion (OCF / net income) 1.6x 2.3x 2.9x
Stock comp / revenue 2.4% 2.6% 6.9%

Financial Health

11 metrics
MetricDOXAAOIEXTR
Debt / assets 14.5% 2.5% 13.9%
Debt / equity 0.3x 0.0x 1.8x
Net debt / EBITDA 0.9x 13.8x -0.6x
Debt / FCF 1.1x -0.1x 1.7x
Liabilities / assets 48.1% 27.5% 92.5%
Equity / assets 51.9% 72.5% 7.5%
Interest coverage – -19.1x 4.5x
Current ratio 0.9x 2.8x 0.9x
Quick ratio 1.0x 1.9x 0.6x
Cash ratio 0.1x 1.2x 0.4x
Altman Z-score 3.95 5.64 1.73

Shareholder Returns

7 metrics
MetricDOXAAOIEXTR
Dividend yield 3.6% – –
Net buyback yield 7.8% -23.7% 3.0%
Shareholder yield 11.3% -23.7% 3.0%
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.

ConsensusDOXAAOIEXTR
Forward P/E 7.9xFY2026 95.1xFY2026 15.9xFY2027
EPS, next fiscal year $7.92FY2026 $0.71FY2026 $1.38FY2027
EPS growth, next FY +13.3%FY2026 – +30.2%FY2027
EPS growth, the year after +4.0% +646.5% +2.9%
Revenue, next fiscal year $4.46BFY2026 $994.70MFY2026 $1.34BFY2027
Revenue growth, next FY -1.6%FY2026 +118.3%FY2026 +4.5%FY2027
Revenue growth, the year after +5.0% +185.6% +21.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersDOXAAOIEXTR
Held by institutions 93.0% 60.5% 96.7%
Institutions holding 446 481 338
Change in shares held, QoQ +0.5% -3.5% +1.2%
Institutions buying 250 313 181
Institutions selling 151 143 121
Buyers to sellers 1.66 2.19 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.

DOXAAOIEXTR
DOX 1.00 -0.19 0.00
AAOI -0.19 1.00 0.33
EXTR 0.00 0.33 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, DOX, AAOI and EXTR?

Amdocs (DOX) is the largest by market capitalisation: Amdocs (DOX) $6.97B, Applied Optoelectronics (AAOI) $5.87B, Extreme Networks (EXTR) $3.01B.

Which stock is cheaper, DOX, AAOI and EXTR?

Amdocs (DOX) trades on the lowest price-to-earnings ratio (Amdocs (DOX) 15.3x, Applied Optoelectronics (AAOI) -102.9x, Extreme Networks (EXTR) 71.5x). On next year's consensus earnings, Amdocs (DOX) is cheapest (Amdocs (DOX) 7.9x, Applied Optoelectronics (AAOI) 95.1x, Extreme Networks (EXTR) 15.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Applied Optoelectronics (AAOI) grew revenue fastest over the trailing twelve months: Amdocs (DOX) +0.1%, Applied Optoelectronics (AAOI) +61.8%, Extreme Networks (EXTR) +12.6%.

Which company is more profitable?

Amdocs (DOX) has the highest net margin (Amdocs (DOX) 9.8%, Applied Optoelectronics (AAOI) -9.6%, Extreme Networks (EXTR) 3.3%). On return on invested capital, Extreme Networks (EXTR) leads (Applied Optoelectronics (AAOI) -4.2%, Extreme Networks (EXTR) 19.4%).

Which stock has performed better?

Over the past year Applied Optoelectronics (AAOI) returned the most: Amdocs (DOX) -24.9%, Applied Optoelectronics (AAOI) +115.0%, Extreme Networks (EXTR) +3.9%. Over five years, Applied Optoelectronics (AAOI) compounded fastest (Amdocs (DOX) -5.0%/yr, Applied Optoelectronics (AAOI) +55.2%/yr, Extreme Networks (EXTR) +17.6%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Amdocs (DOX) has been the steadiest (Amdocs (DOX) 29.8%, Applied Optoelectronics (AAOI) 139.0%, Extreme Networks (EXTR) 55.3%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, DOX, AAOI 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, Amdocs (DOX) 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.