EXTR vs CIEN vs DGII Stock Comparison

Extreme Networks, Ciena and Digi International Prices as of Oct 29, 2026 Peers: Industry group
EXTR Extreme Networks Inc
$23.59 +12.0% 1M +31.0% 1Y
Market cap
$2.93B
P/E
55.8x
Revenue (TTM)
$1.31B
Div. yield
–
Networking Equipment Technology
4 wins
CIEN Ciena Corp
$349.15 -1.6% 1M +84.5% 1Y
Market cap
$45.08B
P/E
68.9x
Revenue (TTM)
$6.02B
Div. yield
–
Networking Equipment Technology
4 wins
DGII Digi International Inc
$77.63 +1.5% 1M +103.5% 1Y
Market cap
$2.77B
P/E
56.8x
Revenue (TTM)
$506.21M
Div. yield
–
Networking Equipment Technology
3 wins

Head to Head

11 decided of 12

Ciena leads on 4 of the 12 questions below (Ciena 4, Extreme Networks 4, Digi International 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionEXTRCIENDGIILeader
Larger companyMarket capitalisation $2.93B $45.08B $2.77B CIEN
Cheaper on earningsLower P/E, profitable companies only 55.8x 68.9x 56.8x EXTR
Cheaper on forward earningsLower price / next fiscal year consensus EPS 17.1x 45.9x 27.9x EXTR
Faster revenue growthRevenue growth, trailing twelve months +11.3% +32.6% +20.3% CIEN
More profitableNet margin, trailing twelve months 4.0% 10.9% 9.6% CIEN
Better return on capitalReturn on invested capital 23.5% 12.4% 6.9% EXTR
Less leveragedLower net debt / EBITDA -0.4x 0.7x 0.7x EXTR
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +31.0% +84.5% +103.5% DGII
Better 5-year returnAnnualised price return, 5 years +19.1%/yr +45.1%/yr +29.2%/yr CIEN
Less volatileAnnualised volatility, 1 year 53.1% 77.9% 40.8% DGII
Higher overall scoreMean of the five percentile scores vs peers 59/100 55/100 59/100 DGII

Percentile Scorecard

EXTRCIENDGII

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

AxisEXTRCIENDGII
Valuation 53 #53 of 112 21 #89 of 112 42 #65 of 112
Growth 51 #54 of 108 94 #7 of 108 70 #33 of 108
Profitability 76 #26 of 104 84 #18 of 104 82 #20 of 104
Financial Health 24 #89 of 116 41 #69 of 116 48 #61 of 116
Shareholder Returns 90 #9 of 78 36 #50 of 78 53 #37 of 78
Overall 59 55 59
  • EXTR ranked among 121 companies in Computer Hardware
  • CIEN ranked among 121 companies in Computer Hardware
  • DGII ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodEXTRCIENDGIISPY
1 month +12.0%-1.6%+1.5% +0.7%
3 months -20.9%-6.1%+13.8% +3.7%
6 months +6.8%-33.8%+38.5% +7.1%
Year to date +41.7%+49.3%+79.3% +12.8%
1 year +31.0%+84.5%+103.5% +11.9%
3 years +19.0%+750.3%+206.2% +85.2%
3 years, per year +6.0%+104.2%+45.3% +22.8%
5 years +140.0%+543.1%+260.2% +67.6%
5 years, per year +19.1%+45.1%+29.2% +10.9%
10 years +482.5%+1,689.6%+700.3% +262.0%
10 years, per year +19.3%+33.4%+23.1% +13.7%

Risk

MeasureEXTRCIENDGIISPY
Volatility, 1Y 53.1%77.9%40.8% 12.7%
Downside volatility, 1Y 51.4%82.7%38.6% 12.6%
Beta vs S&P 500, 1Y 1.572.801.43 1.00
Return / volatility, 1Y 0.581.082.54 0.94
Max drawdown, 5Y -67.2%-49.7%-48.6% -25.4%
From 52-week high -30.0%-44.3%-8.9% -1.2%
52-week high $33.71$627.00$85.24 $779.14
52-week low $13.74$176.45$35.40 $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.

MultipleEXTRCIENDGII
P/E now vs peer median 59.1xmedian 32.9x 75.8xmedian 32.9x 60.2xmedian 32.9x
P/S now vs peer median 2.4xmedian 2.9x 8.2xmedian 2.9x 5.8xmedian 2.9x
EV/EBITDA now vs peer median 30.7xmedian 20.0x 55.9xmedian 20.0x 26.8xmedian 20.0x
P/FCF now vs peer median 20.2xmedian 30.2x 60.8xmedian 30.2x 21.7xmedian 30.2x
P/B now vs peer median 35.4xmedian 2.9x 16.2xmedian 2.9x 4.3xmedian 2.9x
PEG now vs peer median -3.29median 1.08 1.69median 1.08 3.79median 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 monthsEXTRCIENDGII
Revenue $1.31B $6.02B $506.21M
Gross profit $813.05M $2.65B $323.07M
Operating income $74.49M $738.95M $70.58M
Net income $52.49M $654.41M $48.74M
Free cash flow $154.76M $814.36M $135.98M
R&D $233.95M $924.94M $73.84M
EPS (diluted) $0.39 $4.48 $1.25
Cash & equivalents $244.52M $2.45B $27.97M
Total debt $200.00M $3.23B $108.13M
Shares (diluted) 134.68M 145.97M 38.92M
Enterprise value $2.04B $38.64B $2.66B

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
MetricEXTRCIENDGII
P/E 59.1x 75.8x 60.2x
P/FCF 20.2x 60.8x 21.7x
P/Operating cash flow 17.1x 47.0x 21.3x
P/S 2.4x 8.2x 5.8x
P/B 35.4x 16.2x 4.3x
P/Tangible book 36.5x 17.3x 9.2x
EV/EBITDA 30.7x 55.9x 26.8x
EV/EBIT 41.3x 67.9x 42.9x
EV/Revenue 2.3x 8.3x 6.0x
EV/FCF 19.9x 61.6x 22.3x
EV/Operating cash flow 16.8x 47.5x 21.9x
PEG (3Y EPS CAGR) -3.29 1.69 3.79

Growth

14 metrics
MetricEXTRCIENDGII
Revenue growth (1Y) 11.3% 32.6% 20.3%
Revenue CAGR (3Y) -1.3% 12.5% 4.9%
Gross profit growth (1Y) 11.7% 40.6% 23.4%
Gross profit CAGR (3Y) 0.5% 13.3% 9.3%
Operating income growth (1Y) 126.0% 200.1% 24.0%
Operating income CAGR (3Y) -16.3% 29.1% 9.7%
Net income growth (1Y) 506.9% 364.5% 14.2%
Net income CAGR (3Y) -17.7% 43.5% 18.0%
EPS growth (1Y) 508.7% 359.9% 10.5%
EPS CAGR (3Y) -18.0% 44.8% 15.9%
Operating cash flow growth (1Y) 52.9% 34.5% 30.1%
Operating cash flow CAGR (3Y) -12.8% 201.2% 59.2%
Free cash flow growth (1Y) 63.2% 34.5% 31.6%
Free cash flow CAGR (3Y) -15.9% 95.4% 60.8%

Profitability

14 metrics
MetricEXTRCIENDGII
Gross margin 61.9% 44.1% 63.8%
EBITDA margin 7.6% 14.9% 22.3%
Operating margin 5.7% 12.3% 13.9%
Pretax margin 4.7% 12.1% 12.4%
Net margin 4.0% 10.9% 9.6%
FCF margin 11.8% 13.5% 26.9%
Operating cash flow margin 13.9% 17.5% 27.3%
Return on equity 59.4% 22.0% 7.2%
Return on assets 4.2% 9.3% 5.0%
Return on invested capital 23.5% 12.4% 6.9%
Return on capital employed 12.8% 13.1% 8.4%
Asset turnover 1.1x 0.9x 0.5x
Cash conversion (OCF / net income) 3.5x 1.6x 2.8x
Stock comp / revenue 6.7% 3.5% 3.4%

Financial Health

11 metrics
MetricEXTRCIENDGII
Debt / assets 15.4% 40.4% 11.2%
Debt / equity 2.3x 1.1x 0.2x
Net debt / EBITDA -0.4x 0.7x 0.7x
Debt / FCF 1.3x 4.0x 0.8x
Liabilities / assets 93.2% 61.8% 29.0%
Equity / assets 6.8% 38.2% 71.0%
Interest coverage 4.9x 10.6x 8.9x
Current ratio 1.0x 3.8x 1.1x
Quick ratio 0.6x 2.8x 0.7x
Cash ratio 0.4x 1.9x 0.2x
Altman Z-score 1.79 7.21 7.59

Shareholder Returns

7 metrics
MetricEXTRCIENDGII
Dividend yield – – –
Net buyback yield 3.2% -1.0% 0.0%
Shareholder yield 3.2% -1.0% 0.0%
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.

ConsensusEXTRCIENDGII
Forward P/E 17.1xFY2027 45.9xFY2026 27.9xFY2026
EPS, next fiscal year $1.38FY2027 $7.60FY2026 $2.78FY2026
EPS growth, next FY +30.2%FY2027 +187.9%FY2026 +32.4%FY2026
EPS growth, the year after +2.9% +64.7% +9.4%
Revenue, next fiscal year $1.34BFY2027 $6.86BFY2026 $519.66MFY2026
Revenue growth, next FY +4.5%FY2027 +43.8%FY2026 +20.8%FY2026
Revenue growth, the year after +21.3% +18.0% +3.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersEXTRCIENDGII
Held by institutions 96.7% 92.9% 100.0%
Institutions holding 338 1,221 284
Change in shares held, QoQ +1.2% -1.7% +1.6%
Institutions buying 181 730 143
Institutions selling 121 379 105
Buyers to sellers 1.50 1.93 1.36

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.

EXTRCIENDGII
EXTR 1.00 0.32 0.29
CIEN 0.32 1.00 0.32
DGII 0.29 0.32 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, EXTR, CIEN and DGII?

Ciena (CIEN) is the largest by market capitalisation: Extreme Networks (EXTR) $2.93B, Ciena (CIEN) $45.08B, Digi International (DGII) $2.77B.

Which stock is cheaper, EXTR, CIEN and DGII?

Extreme Networks (EXTR) trades on the lowest price-to-earnings ratio (Extreme Networks (EXTR) 55.8x, Ciena (CIEN) 68.9x, Digi International (DGII) 56.8x). On next year's consensus earnings, Extreme Networks (EXTR) is cheapest (Extreme Networks (EXTR) 17.1x, Ciena (CIEN) 45.9x, Digi International (DGII) 27.9x). 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: Extreme Networks (EXTR) +11.3%, Ciena (CIEN) +32.6%, Digi International (DGII) +20.3%.

Which company is more profitable?

Ciena (CIEN) has the highest net margin (Extreme Networks (EXTR) 4.0%, Ciena (CIEN) 10.9%, Digi International (DGII) 9.6%). On return on invested capital, Extreme Networks (EXTR) leads (Extreme Networks (EXTR) 23.5%, Ciena (CIEN) 12.4%, Digi International (DGII) 6.9%).

Which stock has performed better?

Over the past year Digi International (DGII) returned the most: Extreme Networks (EXTR) +31.0%, Ciena (CIEN) +84.5%, Digi International (DGII) +103.5%. Over five years, Ciena (CIEN) compounded fastest (Extreme Networks (EXTR) +19.1%/yr, Ciena (CIEN) +45.1%/yr, Digi International (DGII) +29.2%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Digi International (DGII) has been the steadiest (Extreme Networks (EXTR) 53.1%, Ciena (CIEN) 77.9%, Digi International (DGII) 40.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, EXTR, CIEN and DGII?

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 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.