SILC vs CIEN vs EXTR Stock Comparison

Silicom, Ciena and Extreme Networks Prices as of Oct 26, 2026 Peers: Industry group
SILC Silicom Ltd.
$40.10 -24.0% 1M +133.3% 1Y
Market cap
$239.69M
P/E
–
Revenue (TTM)
$75.43M
Div. yield
–
Networking Equipment Technology
1 win
CIEN Ciena Corp
$336.09 -5.8% 1M +87.7% 1Y
Market cap
$49.96B
P/E
76.4x
Revenue (TTM)
$6.02B
Div. yield
–
Networking Equipment Technology
5 wins
EXTR Extreme Networks Inc
$22.70 +5.5% 1M +8.7% 1Y
Market cap
$3.17B
P/E
75.2x
Revenue (TTM)
$1.28B
Div. yield
–
Networking Equipment Technology
5 wins

Head to Head

11 decided of 12

Ciena leads on 5 of the 12 questions below (Ciena 5, Extreme Networks 5, Silicom 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionSILCCIENEXTRLeader
Larger companyMarket capitalisation $239.69M $49.96B $3.17B CIEN
Cheaper on earningsLower P/E, profitable companies only -24.5x 76.4x 75.2x EXTR
Cheaper on forward earningsLower price / next fiscal year consensus EPS — 44.2x 16.4x EXTR
Faster revenue growthRevenue growth, trailing twelve months +28.6% +32.6% +12.6% CIEN
More profitableNet margin, trailing twelve months -13.0% 10.9% 3.3% CIEN
Better return on capitalReturn on invested capital — 12.4% 19.4% EXTR
Less leveragedLower net debt / EBITDA — 0.7x -0.6x EXTR
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +133.3% +87.7% +8.7% SILC
Better 5-year returnAnnualised price return, 5 years -1.4%/yr +44.4%/yr +18.6%/yr CIEN
Less volatileAnnualised volatility, 1 year 90.3% 77.9% 55.5% EXTR
Higher overall scoreMean of the five percentile scores vs peers 36/100 55/100 51/100 CIEN

Percentile Scorecard

SILCCIENEXTR

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

AxisSILCCIENEXTR
Valuation 42 #65 of 111 19 #90 of 111 37 #70 of 111
Growth 22 #85 of 108 95 #6 of 108 39 #66 of 108
Profitability 18 #86 of 104 83 #19 of 104 70 #32 of 104
Financial Health 65 #41 of 115 43 #66 of 115 23 #89 of 115
Shareholder Returns – 34 #54 of 81 88 #11 of 81
Overall 36 55 51
  • SILC ranked among 121 companies in Computer Hardware
  • CIEN 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

PeriodSILCCIENEXTRSPY
1 month -24.0%-5.8%+5.5% -0.8%
3 months +1.8%-10.9%-24.2% +3.5%
6 months +38.8%-33.6%+30.0% +7.0%
Year to date +172.8%+43.7%+36.3% +12.2%
1 year +133.3%+87.7%+8.7% +13.0%
3 years +167.3%+719.3%+10.5% +86.3%
3 years, per year +38.8%+101.7%+3.4% +23.1%
5 years -6.6%+526.3%+134.7% +68.6%
5 years, per year -1.4%+44.4%+18.6% +11.0%
10 years -4.1%+1,548.3%+434.1% +258.0%
10 years, per year -0.4%+32.3%+18.2% +13.6%

Risk

MeasureSILCCIENEXTRSPY
Volatility, 1Y 90.3%77.9%55.5% 12.7%
Downside volatility, 1Y 79.5%82.8%56.6% 12.7%
Beta vs S&P 500, 1Y 3.002.781.54 1.00
Return / volatility, 1Y 1.481.130.16 1.02
Max drawdown, 5Y -77.3%-49.7%-67.2% -25.4%
From 52-week high -35.0%-46.4%-32.7% -1.8%
52-week high $61.65$627.00$33.71 $779.14
52-week low $13.50$176.45$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.

MultipleSILCCIENEXTR
P/E now vs peer median -23.4xmedian 32.0x 73.0xmedian 32.0x 71.5xmedian 32.0x
P/S now vs peer median 3.0xmedian 2.8x 7.9xmedian 2.8x 2.3xmedian 2.8x
EV/EBITDA now vs peer median —median 19.4x 53.8xmedian 19.4x 34.0xmedian 19.4x
P/FCF now vs peer median —median 29.0x 58.6xmedian 29.0x 31.3xmedian 29.0x
P/B now vs peer median 2.0xmedian 2.9x 15.6xmedian 2.9x 33.6xmedian 2.9x
PEG now vs peer median 0.62median 1.13 1.63median 1.13 -3.79median 1.13

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 monthsSILCCIENEXTR
Revenue $75.43M $6.02B $1.28B
Gross profit $22.75M $2.65B $789.14M
Operating income -$10.69M $738.95M $62.70M
Net income -$9.79M $654.41M $42.12M
Free cash flow – $814.36M $95.24M
R&D $21.03M $924.94M $233.88M
EPS (diluted) $-1.72 $4.48 $0.31
Cash & equivalents $25.15M $2.45B $211.76M
Total debt – $3.23B $163.72M
Shares (diluted) 5.71M 145.97M 134.97M
Enterprise value $100.39M $43.52B $2.31B

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
MetricSILCCIENEXTR
P/E -23.4x 73.0x 71.5x
P/FCF – 58.6x 31.3x
P/Operating cash flow – 45.2x 24.2x
P/S 3.0x 7.9x 2.3x
P/B 2.0x 15.6x 33.6x
P/Tangible book 2.1x 16.6x 34.8x
EV/EBITDA – 53.8x 34.0x
EV/EBIT -18.5x 65.3x 46.7x
EV/Revenue 2.6x 8.0x 2.3x
EV/FCF – 59.3x 30.8x
EV/Operating cash flow – 45.8x 23.8x
PEG (3Y EPS CAGR) 0.62 1.63 -3.79

Growth

14 metrics
MetricSILCCIENEXTR
Revenue growth (1Y) 28.6% 32.6% 12.6%
Revenue CAGR (3Y) -22.1% 12.5% -0.7%
Gross profit growth (1Y) 31.6% 40.6% 11.3%
Gross profit CAGR (3Y) -24.5% 13.3% 1.5%
Operating income growth (1Y) 18.2% 200.1% 269.9%
Operating income CAGR (3Y) -35.7% 29.1% -16.7%
Net income growth (1Y) 34.3% 364.5% 664.1%
Net income CAGR (3Y) -36.0% 43.5% -18.6%
EPS growth (1Y) 30.7% 359.9% 653.0%
EPS CAGR (3Y) -37.8% 44.8% -18.9%
Operating cash flow growth (1Y) – 34.5% -19.0%
Operating cash flow CAGR (3Y) – 201.2% -20.9%
Free cash flow growth (1Y) – 34.5% -25.2%
Free cash flow CAGR (3Y) – 95.4% -26.0%

Profitability

14 metrics
MetricSILCCIENEXTR
Gross margin 30.2% 44.1% 61.5%
EBITDA margin – 14.9% 6.7%
Operating margin -14.2% 12.3% 4.9%
Pretax margin -12.3% 12.1% 4.0%
Net margin -13.0% 10.9% 3.3%
FCF margin – 13.5% 7.4%
Operating cash flow margin – 17.5% 9.6%
Return on equity -8.5% 22.0% 50.3%
Return on assets -6.1% 9.3% 3.6%
Return on invested capital – 12.4% 19.4%
Return on capital employed -8.9% 13.1% 10.8%
Asset turnover 0.5x 0.9x 1.1x
Cash conversion (OCF / net income) – 1.6x 2.9x
Stock comp / revenue – 3.5% 6.9%

Financial Health

11 metrics
MetricSILCCIENEXTR
Debt / assets – 40.4% 13.9%
Debt / equity – 1.1x 1.8x
Net debt / EBITDA – 0.7x -0.6x
Debt / FCF – 4.0x 1.7x
Liabilities / assets 29.5% 61.8% 92.5%
Equity / assets 70.5% 38.2% 7.5%
Interest coverage – 10.6x 4.5x
Current ratio 3.1x 3.8x 0.9x
Quick ratio 1.3x 2.8x 0.6x
Cash ratio 0.8x 1.9x 0.4x
Altman Z-score 4.50 6.99 1.78

Shareholder Returns

7 metrics
MetricSILCCIENEXTR
Dividend yield – – –
Net buyback yield – -1.0% 2.9%
Shareholder yield 0.0% -1.0% 2.9%
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.

ConsensusSILCCIENEXTR
Forward P/E – 44.2xFY2026 16.4xFY2027
EPS, next fiscal year $-0.43FY2026 $7.60FY2026 $1.38FY2027
EPS growth, next FY – +187.9%FY2026 +30.2%FY2027
EPS growth, the year after – +64.7% +2.9%
Revenue, next fiscal year $91.18MFY2026 $6.86BFY2026 $1.34BFY2027
Revenue growth, next FY +47.2%FY2026 +43.8%FY2026 +4.5%FY2027
Revenue growth, the year after +29.1% +18.0% +21.3%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersSILCCIENEXTR
Held by institutions 43.1% 92.9% 96.7%
Institutions holding 51 1,220 338
Change in shares held, QoQ +42.4% -1.7% +1.2%
Institutions buying 32 729 181
Institutions selling 12 379 121
Buyers to sellers 2.67 1.92 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.

SILCCIENEXTR
SILC 1.00 0.42 0.35
CIEN 0.42 1.00 0.28
EXTR 0.35 0.28 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, SILC, CIEN and EXTR?

Ciena (CIEN) is the largest by market capitalisation: Silicom (SILC) $239.69M, Ciena (CIEN) $49.96B, Extreme Networks (EXTR) $3.17B.

Which stock is cheaper, SILC, CIEN and EXTR?

Extreme Networks (EXTR) trades on the lowest price-to-earnings ratio (Silicom (SILC) -24.5x, Ciena (CIEN) 76.4x, Extreme Networks (EXTR) 75.2x). On next year's consensus earnings, Extreme Networks (EXTR) is cheapest (Ciena (CIEN) 44.2x, Extreme Networks (EXTR) 16.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Ciena (CIEN) grew revenue fastest over the trailing twelve months: Silicom (SILC) +28.6%, Ciena (CIEN) +32.6%, Extreme Networks (EXTR) +12.6%.

Which company is more profitable?

Ciena (CIEN) has the highest net margin (Silicom (SILC) -13.0%, Ciena (CIEN) 10.9%, Extreme Networks (EXTR) 3.3%). On return on invested capital, Extreme Networks (EXTR) leads (Ciena (CIEN) 12.4%, Extreme Networks (EXTR) 19.4%).

Which stock has performed better?

Over the past year Silicom (SILC) returned the most: Silicom (SILC) +133.3%, Ciena (CIEN) +87.7%, Extreme Networks (EXTR) +8.7%. Over five years, Ciena (CIEN) compounded fastest (Silicom (SILC) -1.4%/yr, Ciena (CIEN) +44.4%/yr, Extreme Networks (EXTR) +18.6%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Extreme Networks (EXTR) has been the steadiest (Silicom (SILC) 90.3%, Ciena (CIEN) 77.9%, Extreme Networks (EXTR) 55.5%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, SILC, CIEN 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, Ciena (CIEN) leads on 5. 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.