EXTR vs AAOI vs CSCO Stock Comparison

Extreme Networks, Applied Optoelectronics and Cisco Systems Prices as of Nov 5, 2026 Peers: Industry group
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EXTR Extreme Networks Inc
$21.05 -14.2% 1M +19.3% 1Y
Market cap
$2.78B
P/E
52.7x
Revenue (TTM)
$1.31B
Div. yield
–
Networking Equipment Technology
4 wins
CSCO Cisco Systems, Inc.
$95.72 -18.8% 1M +32.8% 1Y
Market cap
$377.71B
P/E
28.5x
Revenue (TTM)
$63.33B
Div. yield
1.74%
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, Extreme Networks 4, Applied Optoelectronics 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionEXTRAAOICSCOLeader
Larger companyMarket capitalisation $2.78B $4.26B $377.71B CSCO
Cheaper on earningsLower P/E, profitable companies only 52.7x -122.1x 28.5x CSCO
Cheaper on forward earningsLower price / next fiscal year consensus EPS 14.5x 66.0x 20.1x EXTR
Faster revenue growthRevenue growth, trailing twelve months +11.3% +77.2% +11.8% AAOI
More profitableNet margin, trailing twelve months 4.0% -4.4% 21.0% CSCO
Better return on capitalReturn on invested capital 23.5% -2.3% 15.9% EXTR
Less leveragedLower net debt / EBITDA -0.4x 68.1x 0.8x EXTR
Higher dividend yieldTrailing dividend yield — — 1.74% –
Better 1-year returnPrice return, last 12 months +19.3% +48.8% +32.8% AAOI
Better 5-year returnAnnualised price return, 5 years +12.8%/yr +51.6%/yr +10.9%/yr AAOI
Less volatileAnnualised volatility, 1 year 53.5% 141.5% 36.6% CSCO
Higher overall scoreMean of the five percentile scores vs peers 56/100 33/100 52/100 EXTR

Percentile Scorecard

EXTRAAOICSCO

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

AxisEXTRAAOICSCO
Valuation 46 #61 of 112 14 #96 of 112 28 #81 of 112
Growth 45 #60 of 108 64 #40 of 108 37 #68 of 108
Profitability 76 #26 of 104 18 #85 of 104 87 #14 of 104
Financial Health 23 #90 of 116 63 #44 of 116 30 #82 of 116
Shareholder Returns 89 #10 of 83 4 #80 of 83 78 #19 of 83
Overall 56 33 52
  • EXTR ranked among 121 companies in Computer Hardware
  • AAOI ranked among 121 companies in Computer Hardware
  • CSCO ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodEXTRAAOICSCOSPY
1 month -14.2%-64.0%-18.8% -5.9%
3 months -13.4%-62.3%-20.8% -4.6%
6 months -10.5%-70.2%+3.9% +0.2%
Year to date +26.4%+34.5%+24.3% +7.5%
1 year +19.3%+48.8%+32.8% +8.2%
3 years +23.9%+383.9%+79.6% +68.3%
3 years, per year +7.4%+69.2%+21.6% +19.0%
5 years +82.9%+700.2%+67.7% +56.5%
5 years, per year +12.8%+51.6%+10.9% +9.4%
10 years +388.4%+116.6%+217.1% +251.5%
10 years, per year +17.2%+8.0%+12.2% +13.4%

Risk

MeasureEXTRAAOICSCOSPY
Volatility, 1Y 53.5%141.5%36.6% 13.6%
Downside volatility, 1Y 52.5%132.3%39.3% 14.2%
Beta vs S&P 500, 1Y 1.604.371.21 1.00
Return / volatility, 1Y 0.360.340.90 0.60
Max drawdown, 5Y -67.2%-79.0%-38.6% -25.4%
From 52-week high -37.6%-79.0%-26.4% -5.9%
52-week high $33.71$223.10$130.00 $779.14
52-week low $13.74$19.49$71.04 $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.

MultipleEXTRAAOICSCO
P/E now vs peer median 52.7xmedian 25.2x -122.1xmedian 25.2x 28.5xmedian 25.2x
P/S now vs peer median 2.1xmedian 2.4x 5.7xmedian 2.4x 6.0xmedian 2.4x
EV/EBITDA now vs peer median 27.3xmedian 16.2x -463.5xmedian 16.2x 21.9xmedian 16.2x
P/FCF now vs peer median 18.0xmedian 23.4x -4.8xmedian 23.4x 29.6xmedian 23.4x
P/B now vs peer median 31.6xmedian 2.3x 1.9xmedian 2.3x 7.5xmedian 2.3x
PEG now vs peer median -2.94median 0.98 -2.91median 0.98 10.59median 0.98

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 monthsEXTRAAOICSCO
Revenue $1.31B $747.22M $63.33B
Gross profit $813.05M $215.22M $40.86B
Operating income $74.49M -$50.66M $15.37B
Net income $52.49M -$32.78M $13.27B
Free cash flow $154.76M -$883.41M $12.77B
R&D $233.95M $124.46M $9.56B
EPS (diluted) $0.39 $-0.37 $3.33
Cash & equivalents $244.52M $605.41M $7.22B
Total debt $200.00M $59.99M $29.53B
Shares (diluted) 134.68M 87.84M 3.99B
Enterprise value $1.90B $2.51B $313.64B

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
MetricEXTRAAOICSCO
P/E 52.7x -122.1x 28.5x
P/FCF 18.0x -4.8x 29.6x
P/Operating cash flow 15.2x -40.1x 26.6x
P/S 2.1x 5.7x 6.0x
P/B 31.6x 1.9x 7.5x
P/Tangible book 32.6x 1.9x 8.8x
EV/EBITDA 27.3x -463.5x 21.9x
EV/EBIT 36.8x -73.2x 25.5x
EV/Revenue 2.1x 5.0x 6.2x
EV/FCF 17.7x -4.2x 30.7x
EV/Operating cash flow 15.0x -34.9x 27.6x
PEG (3Y EPS CAGR) -2.94 -2.91 10.59

Growth

14 metrics
MetricEXTRAAOICSCO
Revenue growth (1Y) 11.3% 77.2% 11.8%
Revenue CAGR (3Y) -1.3% 50.6% 3.6%
Gross profit growth (1Y) 11.7% 74.0% 11.1%
Gross profit CAGR (3Y) 0.5% 70.3% 4.6%
Operating income growth (1Y) 126.0% -2.2% 30.7%
Operating income CAGR (3Y) -16.3% 2.8% 0.7%
Net income growth (1Y) 506.9% 79.0% 30.3%
Net income CAGR (3Y) -17.7% 19.3% 1.7%
EPS growth (1Y) 508.7% 84.8% 30.7%
EPS CAGR (3Y) -18.0% 41.9% 2.7%
Operating cash flow growth (1Y) 52.9% 37.3% -0.1%
Operating cash flow CAGR (3Y) -12.8% -101.6% -10.7%
Free cash flow growth (1Y) 63.2% -192.6% -3.9%
Free cash flow CAGR (3Y) -15.9% -275.9% -12.5%

Profitability

14 metrics
MetricEXTRAAOICSCO
Gross margin 61.9% 28.8% 64.5%
EBITDA margin 7.6% -1.1% 28.3%
Operating margin 5.7% -6.8% 24.3%
Pretax margin 4.7% -4.9% 25.3%
Net margin 4.0% -4.4% 21.0%
FCF margin 11.8% -118.2% 20.2%
Operating cash flow margin 13.9% -14.2% 22.4%
Return on equity 59.4% -1.7% 26.8%
Return on assets 4.2% -1.2% 10.4%
Return on invested capital 23.5% -2.3% 15.9%
Return on capital employed 12.8% -2.5% 17.9%
Asset turnover 1.1x 0.3x 0.5x
Cash conversion (OCF / net income) 3.5x 3.2x 1.1x
Stock comp / revenue 6.7% 2.4% 6.0%

Financial Health

11 metrics
MetricEXTRAAOICSCO
Debt / assets 15.4% 1.9% 22.8%
Debt / equity 2.3x 0.0x 0.6x
Net debt / EBITDA -0.4x 68.1x 0.8x
Debt / FCF 1.3x -0.1x 2.3x
Liabilities / assets 93.2% 28.5% 61.2%
Equity / assets 6.8% 71.5% 38.8%
Interest coverage 4.9x -13.1x 10.5x
Current ratio 1.0x 2.3x 0.9x
Quick ratio 0.6x 1.5x 0.6x
Cash ratio 0.4x 0.9x 0.4x
Altman Z-score 1.63 3.15 3.73

Shareholder Returns

7 metrics
MetricEXTRAAOICSCO
Dividend yield – – 1.7%
Net buyback yield 3.6% -41.5% 1.5%
Shareholder yield 3.6% -41.5% 3.2%
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.

ConsensusEXTRAAOICSCO
Forward P/E 14.5xFY2027 66.0xFY2026 20.1xFY2027
EPS, next fiscal year $1.45FY2027 $0.71FY2026 $4.76FY2027
EPS growth, next FY +36.8%FY2027 – +9.9%FY2027
EPS growth, the year after +0.7% +646.5% +21.2%
Revenue, next fiscal year $1.36BFY2027 $994.70MFY2026 $75.08BFY2027
Revenue growth, next FY +6.0%FY2027 +118.3%FY2026 +18.6%FY2027
Revenue growth, the year after +22.0% +185.6% +1.1%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersEXTRAAOICSCO
Held by institutions 96.7% 60.5% 80.1%
Institutions holding 339 482 4,051
Change in shares held, QoQ +1.2% -3.5% +5.0%
Institutions buying 182 313 1,850
Institutions selling 121 144 1,819
Buyers to sellers 1.50 2.17 1.02

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.

EXTRAAOICSCO
EXTR 1.00 0.37 0.53
AAOI 0.37 1.00 0.37
CSCO 0.53 0.37 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, EXTR, AAOI and CSCO?

Cisco Systems (CSCO) is the largest by market capitalisation: Extreme Networks (EXTR) $2.78B, Applied Optoelectronics (AAOI) $4.26B, Cisco Systems (CSCO) $377.71B.

Which stock is cheaper, EXTR, AAOI and CSCO?

Cisco Systems (CSCO) trades on the lowest price-to-earnings ratio (Extreme Networks (EXTR) 52.7x, Applied Optoelectronics (AAOI) -122.1x, Cisco Systems (CSCO) 28.5x). On next year's consensus earnings, Extreme Networks (EXTR) is cheapest (Extreme Networks (EXTR) 14.5x, Applied Optoelectronics (AAOI) 66.0x, Cisco Systems (CSCO) 20.1x). 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: Extreme Networks (EXTR) +11.3%, Applied Optoelectronics (AAOI) +77.2%, Cisco Systems (CSCO) +11.8%.

Which company is more profitable?

Cisco Systems (CSCO) has the highest net margin (Extreme Networks (EXTR) 4.0%, Applied Optoelectronics (AAOI) -4.4%, Cisco Systems (CSCO) 21.0%). On return on invested capital, Extreme Networks (EXTR) leads (Extreme Networks (EXTR) 23.5%, Applied Optoelectronics (AAOI) -2.3%, Cisco Systems (CSCO) 15.9%).

Which stock has performed better?

Over the past year Applied Optoelectronics (AAOI) returned the most: Extreme Networks (EXTR) +19.3%, Applied Optoelectronics (AAOI) +48.8%, Cisco Systems (CSCO) +32.8%. Over five years, Applied Optoelectronics (AAOI) compounded fastest (Extreme Networks (EXTR) +12.8%/yr, Applied Optoelectronics (AAOI) +51.6%/yr, Cisco Systems (CSCO) +10.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Cisco Systems (CSCO) 1.74%. Extreme Networks (EXTR) and Applied Optoelectronics (AAOI) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Cisco Systems (CSCO) has been the steadiest (Extreme Networks (EXTR) 53.5%, Applied Optoelectronics (AAOI) 141.5%, Cisco Systems (CSCO) 36.6%). Volatility measures how widely the price swings, not the risk of the business.

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

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.