ATEN vs CSCO vs AAOI Stock Comparison

A10 Networks, Cisco Systems and Applied Optoelectronics Prices as of Nov 2, 2026 Peers: Industry group
ATEN A10 Networks, Inc.
$23.53 -14.9% 1M +31.9% 1Y
Market cap
$1.72B
P/E
40.0x
Revenue (TTM)
$310.17M
Div. yield
–
Networking Equipment Technology
1 win
CSCO Cisco Systems, Inc.
$101.61 -9.4% 1M +39.0% 1Y
Market cap
$407.91B
P/E
30.7x
Revenue (TTM)
$63.33B
Div. yield
–
Networking Equipment Technology
7 wins

Head to Head

11 decided of 12

Cisco Systems leads on 7 of the 12 questions below (Cisco Systems 7, Applied Optoelectronics 3, A10 Networks 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionATENCSCOAAOILeader
Larger companyMarket capitalisation $1.72B $407.91B $4.85B CSCO
Cheaper on earningsLower P/E, profitable companies only 40.0x 30.7x -85.0x CSCO
Cheaper on forward earningsLower price / next fiscal year consensus EPS 24.3x 21.7x 90.1x CSCO
Faster revenue growthRevenue growth, trailing twelve months +12.2% +11.8% +61.8% AAOI
More profitableNet margin, trailing twelve months 13.9% 21.0% -9.6% CSCO
Better return on capitalReturn on invested capital 8.9% 15.9% -4.2% CSCO
Less leveragedLower net debt / EBITDA -2.1x 0.8x 13.8x ATEN
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +31.9% +39.0% +75.8% AAOI
Better 5-year returnAnnualised price return, 5 years +8.1%/yr +12.0%/yr +49.5%/yr AAOI
Less volatileAnnualised volatility, 1 year 40.4% 35.9% 140.2% CSCO
Higher overall scoreMean of the five percentile scores vs peers 51/100 53/100 32/100 CSCO

Percentile Scorecard

ATENCSCOAAOI

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

AxisATENCSCOAAOI
Valuation 45 #62 of 112 30 #79 of 112 11 #100 of 112
Growth 29 #77 of 108 40 #65 of 108 54 #50 of 108
Profitability 85 #16 of 104 87 #14 of 104 16 #88 of 104
Financial Health 32 #79 of 116 30 #82 of 116 71 #34 of 116
Shareholder Returns 65 #29 of 80 80 #17 of 80 8 #74 of 80
Overall 51 53 32
  • ATEN ranked among 121 companies in Computer Hardware
  • CSCO ranked among 121 companies in Computer Hardware
  • AAOI ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodATENCSCOAAOISPY
1 month -14.9%-9.4%-45.9% -2.3%
3 months -21.5%-12.3%-43.3% -0.7%
6 months -13.0%+9.7%-63.9% +4.8%
Year to date +33.0%+31.9%+79.3% +10.3%
1 year +31.9%+39.0%+75.8% +10.3%
3 years +115.3%+91.7%+560.0% +73.0%
3 years, per year +29.1%+24.2%+87.7% +20.1%
5 years +47.8%+76.3%+646.7% +61.9%
5 years, per year +8.1%+12.0%+49.5% +10.1%
10 years +208.4%+234.4%+210.9% +258.6%
10 years, per year +11.9%+12.8%+12.0% +13.6%

Risk

MeasureATENCSCOAAOISPY
Volatility, 1Y 40.4%35.9%140.2% 12.8%
Downside volatility, 1Y 43.3%37.6%129.1% 12.8%
Beta vs S&P 500, 1Y 1.151.164.47 1.00
Return / volatility, 1Y 0.791.090.54 0.80
Max drawdown, 5Y -44.6%-38.6%-82.6% -25.4%
From 52-week high -38.3%-21.8%-72.0% -3.5%
52-week high $38.14$130.00$223.10 $779.14
52-week low $16.55$71.04$19.49 $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.

MultipleATENCSCOAAOI
P/E now vs peer median 39.5xmedian 29.9x 30.3xmedian 29.9x -89.4xmedian 29.9x
P/S now vs peer median 5.5xmedian 2.8x 6.3xmedian 2.8x 8.8xmedian 2.8x
EV/EBITDA now vs peer median 23.6xmedian 18.5x 23.1xmedian 18.5x -150.5xmedian 18.5x
P/FCF now vs peer median 28.0xmedian 28.0x 31.4xmedian 28.0x -8.8xmedian 28.0x
P/B now vs peer median 7.2xmedian 2.8x 8.0xmedian 2.8x 3.2xmedian 2.8x
PEG now vs peer median -18.40median 1.00 11.24median 1.00 -2.69median 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 monthsATENCSCOAAOI
Revenue $310.17M $63.33B $595.97M
Gross profit $246.21M $40.86B $172.33M
Operating income $50.08M $15.37B -$67.41M
Net income $42.97M $13.27B -$57.02M
Free cash flow $60.94M $12.77B -$600.81M
R&D $77.12M $9.56B $107.61M
EPS (diluted) $0.57 $3.33 $-0.70
Cash & equivalents $54.70M $7.22B $499.74M
Total debt $219.52M $29.53B $57.26M
Shares (diluted) 75.65M 3.99B 81.57M
Enterprise value $243.00M $343.84B $3.57B

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
MetricATENCSCOAAOI
P/E 39.5x 30.3x -89.4x
P/FCF 28.0x 31.4x -8.8x
P/Operating cash flow 22.2x 28.3x -40.0x
P/S 5.5x 6.3x 8.8x
P/B 7.2x 8.0x 3.2x
P/Tangible book 7.6x 9.4x 3.2x
EV/EBITDA 23.6x 23.1x -150.5x
EV/EBIT 31.3x 27.0x -71.7x
EV/Revenue 5.1x 6.5x 8.1x
EV/FCF 25.7x 32.5x -8.0x
EV/Operating cash flow 20.4x 29.2x -36.7x
PEG (3Y EPS CAGR) -18.40 11.24 -2.69

Growth

14 metrics
MetricATENCSCOAAOI
Revenue growth (1Y) 12.2% 11.8% 61.8%
Revenue CAGR (3Y) 4.3% 3.6% 40.9%
Gross profit growth (1Y) 11.7% 11.1% 62.0%
Gross profit CAGR (3Y) 4.0% 4.6% 73.3%
Operating income growth (1Y) 4.5% 30.7% -40.6%
Operating income CAGR (3Y) -0.2% 0.7% -2.8%
Net income growth (1Y) -15.8% 30.3% 63.4%
Net income CAGR (3Y) -2.1% 1.7% 6.2%
EPS growth (1Y) -18.6% 30.7% 74.5%
EPS CAGR (3Y) -2.1% 2.7% 33.2%
Operating cash flow growth (1Y) -9.8% -0.1% 15.2%
Operating cash flow CAGR (3Y) 8.6% -10.7% -168.6%
Free cash flow growth (1Y) -13.7% -3.9% -146.3%
Free cash flow CAGR (3Y) 7.4% -12.5% -294.2%

Profitability

14 metrics
MetricATENCSCOAAOI
Gross margin 79.4% 64.5% 28.9%
EBITDA margin 21.4% 28.3% -5.4%
Operating margin 16.1% 24.3% -11.3%
Pretax margin 17.5% 25.3% -10.6%
Net margin 13.9% 21.0% -9.6%
FCF margin 19.6% 20.2% -100.8%
Operating cash flow margin 24.8% 22.4% -22.1%
Return on equity 18.7% 26.8% -4.1%
Return on assets 6.5% 10.4% -2.9%
Return on invested capital 8.9% 15.9% -4.2%
Return on capital employed 17.8% 17.9% -4.5%
Asset turnover 0.5x 0.5x 0.3x
Cash conversion (OCF / net income) 1.8x 1.1x 2.3x
Stock comp / revenue 7.5% 6.0% 2.6%

Financial Health

11 metrics
MetricATENCSCOAAOI
Debt / assets 32.4% 22.8% 2.5%
Debt / equity 0.9x 0.6x 0.0x
Net debt / EBITDA -2.1x 0.8x 13.8x
Debt / FCF 3.6x 2.3x -0.1x
Liabilities / assets 64.9% 61.2% 27.5%
Equity / assets 35.1% 38.8% 72.5%
Interest coverage – 10.5x -19.1x
Current ratio 1.3x 0.9x 2.8x
Quick ratio 1.1x 0.6x 1.9x
Cash ratio 1.0x 0.4x 1.2x
Altman Z-score 3.27 3.90 5.24

Shareholder Returns

7 metrics
MetricATENCSCOAAOI
Dividend yield 1.0% 1.6% –
Net buyback yield 1.2% 1.4% -25.6%
Shareholder yield 2.3% 3.1% -25.6%
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.

ConsensusATENCSCOAAOI
Forward P/E 24.3xFY2026 21.7xFY2027 90.1xFY2026
EPS, next fiscal year $1.00FY2026 $4.74FY2027 $0.71FY2026
EPS growth, next FY +11.1%FY2026 +9.5%FY2027 –
EPS growth, the year after +13.0% +20.7% +646.5%
Revenue, next fiscal year $342.96MFY2026 $74.93BFY2027 $994.70MFY2026
Revenue growth, next FY +18.0%FY2026 +18.3%FY2027 +118.3%FY2026
Revenue growth, the year after +3.4% +0.6% +185.6%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersATENCSCOAAOI
Held by institutions 100.0% 80.1% 60.5%
Institutions holding 312 4,048 482
Change in shares held, QoQ +5.8% +5.0% -3.5%
Institutions buying 172 1,848 313
Institutions selling 99 1,818 144
Buyers to sellers 1.74 1.02 2.17

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.

ATENCSCOAAOI
ATEN 1.00 0.38 0.31
CSCO 0.38 1.00 0.35
AAOI 0.31 0.35 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ATEN, CSCO and AAOI?

Cisco Systems (CSCO) is the largest by market capitalisation: A10 Networks (ATEN) $1.72B, Cisco Systems (CSCO) $407.91B, Applied Optoelectronics (AAOI) $4.85B.

Which stock is cheaper, ATEN, CSCO and AAOI?

Cisco Systems (CSCO) trades on the lowest price-to-earnings ratio (A10 Networks (ATEN) 40.0x, Cisco Systems (CSCO) 30.7x, Applied Optoelectronics (AAOI) -85.0x). On next year's consensus earnings, Cisco Systems (CSCO) is cheapest (A10 Networks (ATEN) 24.3x, Cisco Systems (CSCO) 21.7x, Applied Optoelectronics (AAOI) 90.1x). 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: A10 Networks (ATEN) +12.2%, Cisco Systems (CSCO) +11.8%, Applied Optoelectronics (AAOI) +61.8%.

Which company is more profitable?

Cisco Systems (CSCO) has the highest net margin (A10 Networks (ATEN) 13.9%, Cisco Systems (CSCO) 21.0%, Applied Optoelectronics (AAOI) -9.6%). On return on invested capital, Cisco Systems (CSCO) leads (A10 Networks (ATEN) 8.9%, 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: A10 Networks (ATEN) +31.9%, Cisco Systems (CSCO) +39.0%, Applied Optoelectronics (AAOI) +75.8%. Over five years, Applied Optoelectronics (AAOI) compounded fastest (A10 Networks (ATEN) +8.1%/yr, Cisco Systems (CSCO) +12.0%/yr, Applied Optoelectronics (AAOI) +49.5%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Cisco Systems (CSCO) has been the steadiest (A10 Networks (ATEN) 40.4%, Cisco Systems (CSCO) 35.9%, Applied Optoelectronics (AAOI) 140.2%). Volatility measures how widely the price swings, not the risk of the business.

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

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 7. 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.