CSCO vs AAOI vs DOX Stock Comparison

Cisco Systems, Applied Optoelectronics and Amdocs Prices as of Oct 29, 2026 Peers: Industry group
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CSCO Cisco Systems, Inc.
$108.59 +1.5% 1M +52.2% 1Y
Market cap
$412.20B
P/E
31.1x
Revenue (TTM)
$63.33B
Div. yield
–
Networking Equipment Technology
4 wins
DOX Amdocs Ltd
$62.22 +8.0% 1M -26.1% 1Y
Market cap
$6.98B
P/E
15.3x
Revenue (TTM)
$4.65B
Div. yield
–
Networking Equipment Technology
4 wins

Head to Head

11 decided of 12

Cisco Systems leads on 4 of the 12 questions below (Cisco Systems 4, Amdocs 4, Applied Optoelectronics 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCSCOAAOIDOXLeader
Larger companyMarket capitalisation $412.20B $5.59B $6.98B CSCO
Cheaper on earningsLower P/E, profitable companies only 31.1x -98.1x 15.3x DOX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 22.9x 111.5x 7.9x DOX
Faster revenue growthRevenue growth, trailing twelve months +11.8% +61.8% +0.1% AAOI
More profitableNet margin, trailing twelve months 21.0% -9.6% 9.8% CSCO
Better return on capitalReturn on invested capital 15.9% -4.2% — CSCO
Less leveragedLower net debt / EBITDA 0.8x 13.8x 0.9x CSCO
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +52.2% +123.2% -26.1% AAOI
Better 5-year returnAnnualised price return, 5 years +14.2%/yr +59.6%/yr -4.4%/yr AAOI
Less volatileAnnualised volatility, 1 year 35.5% 139.0% 29.8% DOX
Higher overall scoreMean of the five percentile scores vs peers 55/100 32/100 64/100 DOX

Percentile Scorecard

CSCOAAOIDOX

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

AxisCSCOAAOIDOX
Valuation 33 #75 of 112 12 #99 of 112 90 #12 of 112
Growth 40 #65 of 108 54 #50 of 108 14 #93 of 108
Profitability 88 #13 of 104 16 #88 of 104 83 #19 of 104
Financial Health 30 #81 of 116 71 #34 of 116 37 #74 of 116
Shareholder Returns 81 #16 of 78 9 #71 of 78 95 #5 of 78
Overall 55 32 64
  • CSCO ranked among 121 companies in Computer Hardware
  • AAOI ranked among 121 companies in Computer Hardware
  • DOX ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodCSCOAAOIDOXSPY
1 month +1.5%-21.3%+8.0% +0.7%
3 months -4.4%-12.1%+12.6% +3.7%
6 months +18.7%-51.8%-3.8% +7.1%
Year to date +41.0%+127.2%-22.7% +12.8%
1 year +52.2%+123.2%-26.1% +11.9%
3 years +110.6%+1,018.5%-21.2% +85.2%
3 years, per year +28.2%+123.8%-7.7% +22.8%
5 years +94.0%+935.2%-20.1% +67.6%
5 years, per year +14.2%+59.6%-4.4% +10.9%
10 years +255.0%+302.2%+6.3% +262.0%
10 years, per year +13.5%+14.9%+0.6% +13.7%

Risk

MeasureCSCOAAOIDOXSPY
Volatility, 1Y 35.5%139.0%29.8% 12.7%
Downside volatility, 1Y 37.1%127.1%32.6% 12.6%
Beta vs S&P 500, 1Y 1.104.320.25 1.00
Return / volatility, 1Y 1.470.89-0.87 0.94
Max drawdown, 5Y -38.6%-82.6%-49.5% -25.4%
From 52-week high -16.5%-64.5%-27.2% -1.2%
52-week high $130.00$223.10$85.49 $779.14
52-week low $71.04$19.49$49.87 $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.

MultipleCSCOAAOIDOX
P/E now vs peer median 32.4xmedian 32.9x -113.3xmedian 32.9x 15.1xmedian 32.9x
P/S now vs peer median 6.8xmedian 2.9x 11.2xmedian 2.9x 1.5xmedian 2.9x
EV/EBITDA now vs peer median 24.7xmedian 20.0x -194.4xmedian 20.0x 9.0xmedian 20.0x
P/FCF now vs peer median 33.6xmedian 30.2x -11.1xmedian 30.2x 7.9xmedian 30.2x
P/B now vs peer median 8.5xmedian 2.9x 4.0xmedian 2.9x 2.0xmedian 2.9x
PEG now vs peer median 12.01median 1.08 -3.41median 1.08 -4.14median 1.08

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 monthsCSCOAAOIDOX
Revenue $63.33B $595.97M $4.65B
Gross profit $40.86B $172.33M $1.78B
Operating income $15.37B -$67.41M $626.70M
Net income $13.27B -$57.02M $457.53M
Free cash flow $12.77B -$600.81M $858.80M
R&D $9.56B $107.61M $343.21M
EPS (diluted) $3.33 $-0.70 $4.17
Cash & equivalents $7.22B $499.74M $206.45M
Total debt $29.53B $57.26M $3.25B
Shares (diluted) 3.99B 81.57M 109.66M
Enterprise value $348.13B $4.31B $5.99B

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
MetricCSCOAAOIDOX
P/E 32.4x -113.3x 15.1x
P/FCF 33.6x -11.1x 7.9x
P/Operating cash flow 30.2x -50.7x 9.0x
P/S 6.8x 11.2x 1.5x
P/B 8.5x 4.0x 2.0x
P/Tangible book 10.0x 4.0x 2.2x
EV/EBITDA 24.7x -194.4x 9.0x
EV/EBIT 28.8x -92.6x 11.9x
EV/Revenue 7.0x 10.5x 1.6x
EV/FCF 34.6x -10.4x 8.7x
EV/Operating cash flow 31.2x -47.3x 10.0x
PEG (3Y EPS CAGR) 12.01 -3.41 -4.14

Growth

14 metrics
MetricCSCOAAOIDOX
Revenue growth (1Y) 11.8% 61.8% 0.1%
Revenue CAGR (3Y) 3.6% 40.9% -1.1%
Gross profit growth (1Y) 11.1% 62.0% 2.9%
Gross profit CAGR (3Y) 4.6% 73.3% 1.5%
Operating income growth (1Y) 30.7% -40.6% -11.9%
Operating income CAGR (3Y) 0.7% -2.8% -3.0%
Net income growth (1Y) 30.3% 63.4% -18.0%
Net income CAGR (3Y) 1.7% 6.2% -7.0%
EPS growth (1Y) 30.7% 74.5% -14.5%
EPS CAGR (3Y) 2.7% 33.2% -3.7%
Operating cash flow growth (1Y) -0.1% 15.2% 1.6%
Operating cash flow CAGR (3Y) -10.7% -168.6% -0.8%
Free cash flow growth (1Y) -3.9% -146.3% 2.8%
Free cash flow CAGR (3Y) -12.5% -294.2% -3.2%

Profitability

14 metrics
MetricCSCOAAOIDOX
Gross margin 64.5% 28.9% 38.3%
EBITDA margin 28.3% -5.4% 17.9%
Operating margin 24.3% -11.3% 13.5%
Pretax margin 25.3% -10.6% 12.5%
Net margin 21.0% -9.6% 9.8%
FCF margin 20.2% -100.8% 18.5%
Operating cash flow margin 22.4% -22.1% 16.1%
Return on equity 26.8% -4.1% –
Return on assets 10.4% -2.9% 7.2%
Return on invested capital 15.9% -4.2% –
Return on capital employed 17.9% -4.5% 13.4%
Asset turnover 0.5x 0.3x 0.7x
Cash conversion (OCF / net income) 1.1x 2.3x 1.6x
Stock comp / revenue 6.0% 2.6% 2.4%

Financial Health

11 metrics
MetricCSCOAAOIDOX
Debt / assets 22.8% 2.5% 14.5%
Debt / equity 0.6x 0.0x 0.3x
Net debt / EBITDA 0.8x 13.8x 0.9x
Debt / FCF 2.3x -0.1x 1.1x
Liabilities / assets 61.2% 27.5% 48.1%
Equity / assets 38.8% 72.5% 51.9%
Interest coverage 10.5x -19.1x –
Current ratio 0.9x 2.8x 0.9x
Quick ratio 0.6x 1.9x 1.0x
Cash ratio 0.4x 1.2x 0.1x
Altman Z-score 4.11 6.57 3.94

Shareholder Returns

7 metrics
MetricCSCOAAOIDOX
Dividend yield 1.5% – 3.6%
Net buyback yield 1.3% -20.2% 7.8%
Shareholder yield 2.9% -20.2% 11.4%
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.

ConsensusCSCOAAOIDOX
Forward P/E 22.9xFY2027 111.5xFY2026 7.9xFY2026
EPS, next fiscal year $4.74FY2027 $0.71FY2026 $7.92FY2026
EPS growth, next FY +9.5%FY2027 – +13.3%FY2026
EPS growth, the year after +20.7% +646.5% +4.0%
Revenue, next fiscal year $74.93BFY2027 $994.70MFY2026 $4.46BFY2026
Revenue growth, next FY +18.3%FY2027 +118.3%FY2026 -1.6%FY2026
Revenue growth, the year after +0.6% +185.6% +5.0%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCSCOAAOIDOX
Held by institutions 80.1% 60.5% 93.0%
Institutions holding 4,047 481 447
Change in shares held, QoQ +5.0% -3.5% +0.5%
Institutions buying 1,847 313 250
Institutions selling 1,818 143 152
Buyers to sellers 1.02 2.19 1.64

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.

CSCOAAOIDOX
CSCO 1.00 0.34 -0.04
AAOI 0.34 1.00 -0.19
DOX -0.04 -0.19 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, CSCO, AAOI and DOX?

Cisco Systems (CSCO) is the largest by market capitalisation: Cisco Systems (CSCO) $412.20B, Applied Optoelectronics (AAOI) $5.59B, Amdocs (DOX) $6.98B.

Which stock is cheaper, CSCO, AAOI and DOX?

Amdocs (DOX) trades on the lowest price-to-earnings ratio (Cisco Systems (CSCO) 31.1x, Applied Optoelectronics (AAOI) -98.1x, Amdocs (DOX) 15.3x). On next year's consensus earnings, Amdocs (DOX) is cheapest (Cisco Systems (CSCO) 22.9x, Applied Optoelectronics (AAOI) 111.5x, Amdocs (DOX) 7.9x). 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: Cisco Systems (CSCO) +11.8%, Applied Optoelectronics (AAOI) +61.8%, Amdocs (DOX) +0.1%.

Which company is more profitable?

Cisco Systems (CSCO) has the highest net margin (Cisco Systems (CSCO) 21.0%, Applied Optoelectronics (AAOI) -9.6%, Amdocs (DOX) 9.8%). On return on invested capital, Cisco Systems (CSCO) leads (Cisco Systems (CSCO) 15.9%, Applied Optoelectronics (AAOI) -4.2%).

Which stock has performed better?

Over the past year Applied Optoelectronics (AAOI) returned the most: Cisco Systems (CSCO) +52.2%, Applied Optoelectronics (AAOI) +123.2%, Amdocs (DOX) -26.1%. Over five years, Applied Optoelectronics (AAOI) compounded fastest (Cisco Systems (CSCO) +14.2%/yr, Applied Optoelectronics (AAOI) +59.6%/yr, Amdocs (DOX) -4.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Amdocs (DOX) has been the steadiest (Cisco Systems (CSCO) 35.5%, Applied Optoelectronics (AAOI) 139.0%, Amdocs (DOX) 29.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CSCO, AAOI and DOX?

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