CIEN vs DGII vs CALX Stock Comparison

Ciena, Digi International and Calix Prices as of Nov 3, 2026 Peers: Industry group
1 more company in this comparison (VISN) Create a free account to keep reading and compare up to 10 companies.
CIEN Ciena Corp
$299.99 -23.3% 1M +58.3% 1Y
Market cap
$38.28B
P/E
58.5x
Revenue (TTM)
$6.02B
Div. yield
–
Networking Equipment Technology
6 wins
DGII Digi International Inc
$72.03 -4.7% 1M +99.3% 1Y
Market cap
$2.73B
P/E
56.0x
Revenue (TTM)
$506.21M
Div. yield
–
Networking Equipment Technology
2 wins
CALX Calix, Inc
$33.26 -4.4% 1M -50.5% 1Y
Market cap
$2.11B
P/E
46.2x
Revenue (TTM)
$1.15B
Div. yield
–
Networking Equipment Technology
3 wins

Head to Head

11 decided of 12

Ciena leads on 6 of the 12 questions below (Ciena 6, Calix 3, Digi International 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCIENDGIICALXLeader
Larger companyMarket capitalisation $38.28B $2.73B $2.11B CIEN
Cheaper on earningsLower P/E, profitable companies only 58.5x 56.0x 46.2x CALX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 39.5x 25.9x 20.5x CALX
Faster revenue growthRevenue growth, trailing twelve months +32.6% +20.3% +22.9% CIEN
More profitableNet margin, trailing twelve months 10.9% 9.6% 4.0% CIEN
Better return on capitalReturn on invested capital 12.4% 6.9% — CIEN
Less leveragedLower net debt / EBITDA 0.7x 0.7x — CIEN
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +58.3% +99.3% -50.5% DGII
Better 5-year returnAnnualised price return, 5 years +37.6%/yr +25.7%/yr -14.1%/yr CIEN
Less volatileAnnualised volatility, 1 year 79.6% 41.1% 41.5% DGII
Higher overall scoreMean of the five percentile scores vs peers 55/100 59/100 73/100 CALX

Percentile Scorecard

CIENDGIICALX

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

AxisCIENDGIICALX
Valuation 21 #89 of 112 43 #64 of 112 59 #47 of 112
Growth 94 #7 of 108 68 #35 of 108 71 #32 of 108
Profitability 83 #19 of 104 82 #20 of 104 60 #42 of 104
Financial Health 41 #69 of 116 48 #61 of 116 75 #30 of 116
Shareholder Returns 35 #56 of 85 54 #40 of 85 100 #1 of 85
Overall 55 59 73
  • CIEN ranked among 121 companies in Computer Hardware
  • DGII ranked among 121 companies in Computer Hardware
  • CALX ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodCIENDGIICALXSPY
1 month -23.3%-4.7%-4.4% -2.0%
3 months -27.0%-0.2%-15.8% -2.2%
6 months -44.9%+23.3%-27.4% +4.2%
Year to date +28.3%+66.4%-37.2% +10.6%
1 year +58.3%+99.3%-50.5% +10.4%
3 years +583.3%+186.1%-6.5% +73.6%
3 years, per year +89.8%+42.0%-2.2% +20.2%
5 years +393.2%+213.3%-53.2% +61.6%
5 years, per year +37.6%+25.7%-14.1% +10.1%
10 years +1,456.8%+646.4%+403.9% +261.3%
10 years, per year +31.6%+22.3%+17.6% +13.7%

Risk

MeasureCIENDGIICALXSPY
Volatility, 1Y 79.6%41.1%41.5% 12.8%
Downside volatility, 1Y 85.5%39.5%45.3% 12.8%
Beta vs S&P 500, 1Y 2.901.490.96 1.00
Return / volatility, 1Y 0.732.42-1.22 0.81
Max drawdown, 5Y -54.7%-48.6%-65.3% -25.4%
From 52-week high -52.2%-15.5%-50.5% -3.2%
52-week high $627.00$85.24$67.24 $779.14
52-week low $176.45$35.40$33.15 $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.

MultipleCIENDGIICALX
P/E now vs peer median 65.1xmedian 30.7x 55.8xmedian 30.7x 45.6xmedian 30.7x
P/S now vs peer median 7.1xmedian 2.6x 5.4xmedian 2.6x 1.8xmedian 2.6x
EV/EBITDA now vs peer median 48.1xmedian 18.9x 24.9xmedian 18.9x 24.4xmedian 18.9x
P/FCF now vs peer median 52.3xmedian 28.0x 20.1xmedian 28.0x 33.1xmedian 28.0x
P/B now vs peer median 13.9xmedian 2.8x 4.0xmedian 2.8x 2.9xmedian 2.8x
PEG now vs peer median 1.45median 1.07 3.52median 1.07 42.89median 1.07

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 monthsCIENDGIICALX
Revenue $6.02B $506.21M $1.15B
Gross profit $2.65B $323.07M $637.49M
Operating income $738.95M $70.58M $60.39M
Net income $654.41M $48.74M $45.75M
Free cash flow $814.36M $135.98M $62.16M
R&D $924.94M $73.84M $215.00M
EPS (diluted) $4.48 $1.25 $0.71
Cash & equivalents $2.45B $27.97M $55.89M
Total debt $3.23B $108.13M –
Shares (diluted) 145.97M 38.92M 64.45M
Enterprise value $31.83B $2.62B $1.13B

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
MetricCIENDGIICALX
P/E 65.1x 55.8x 45.6x
P/FCF 52.3x 20.1x 33.1x
P/Operating cash flow 40.4x 19.7x 24.6x
P/S 7.1x 5.4x 1.8x
P/B 13.9x 4.0x 2.9x
P/Tangible book 14.8x 8.6x 2.9x
EV/EBITDA 48.1x 24.9x 24.4x
EV/EBIT 58.4x 39.9x 31.5x
EV/Revenue 7.2x 5.6x 1.7x
EV/FCF 53.0x 20.7x 30.6x
EV/Operating cash flow 40.9x 20.3x 22.8x
PEG (3Y EPS CAGR) 1.45 3.52 42.89

Growth

14 metrics
MetricCIENDGIICALX
Revenue growth (1Y) 32.6% 20.3% 22.9%
Revenue CAGR (3Y) 12.5% 4.9% 4.0%
Gross profit growth (1Y) 40.6% 23.4% 21.6%
Gross profit CAGR (3Y) 13.3% 9.3% 6.4%
Operating income growth (1Y) 200.1% 24.0% 958.5%
Operating income CAGR (3Y) 29.1% 9.7% 6.0%
Net income growth (1Y) 364.5% 14.2% 730.9%
Net income CAGR (3Y) 43.5% 18.0% -1.5%
EPS growth (1Y) 359.9% 10.5% 783.2%
EPS CAGR (3Y) 44.8% 15.9% 1.1%
Operating cash flow growth (1Y) 34.5% 30.1% -19.9%
Operating cash flow CAGR (3Y) 201.2% 59.2% 20.7%
Free cash flow growth (1Y) 34.5% 31.6% -27.3%
Free cash flow CAGR (3Y) 95.4% 60.8% 29.3%

Profitability

14 metrics
MetricCIENDGIICALX
Gross margin 44.1% 63.8% 55.6%
EBITDA margin 14.9% 22.3% 6.8%
Operating margin 12.3% 13.9% 5.3%
Pretax margin 12.1% 12.4% 6.1%
Net margin 10.9% 9.6% 4.0%
FCF margin 13.5% 26.9% 5.4%
Operating cash flow margin 17.5% 27.3% 7.3%
Return on equity 22.0% 7.2% 6.5%
Return on assets 9.3% 5.0% 4.9%
Return on invested capital 12.4% 6.9% –
Return on capital employed 13.1% 8.4% 8.0%
Asset turnover 0.9x 0.5x 1.2x
Cash conversion (OCF / net income) 1.6x 2.8x 1.8x
Stock comp / revenue 3.5% 3.4% 7.0%

Financial Health

11 metrics
MetricCIENDGIICALX
Debt / assets 40.4% 11.2% –
Debt / equity 1.1x 0.2x –
Net debt / EBITDA 0.7x 0.7x –
Debt / FCF 4.0x 0.8x –
Liabilities / assets 61.8% 29.0% 24.1%
Equity / assets 38.2% 71.0% 75.9%
Interest coverage 10.6x 8.9x –
Current ratio 3.8x 1.1x 3.0x
Quick ratio 2.8x 0.7x 1.5x
Cash ratio 1.9x 0.2x 0.8x
Altman Z-score 6.37 7.14 7.03

Shareholder Returns

7 metrics
MetricCIENDGIICALX
Dividend yield – – –
Net buyback yield -1.1% 0.0% 12.0%
Shareholder yield -1.1% 0.0% 12.0%
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.

ConsensusCIENDGIICALX
Forward P/E 39.5xFY2026 25.9xFY2026 20.5xFY2026
EPS, next fiscal year $7.60FY2026 $2.78FY2026 $1.62FY2026
EPS growth, next FY +187.9%FY2026 +32.4%FY2026 +20.9%FY2026
EPS growth, the year after +64.7% +9.4% +48.1%
Revenue, next fiscal year $6.86BFY2026 $519.66MFY2026 $1.11BFY2026
Revenue growth, next FY +43.8%FY2026 +20.8%FY2026 +11.0%FY2026
Revenue growth, the year after +18.0% +3.8% +18.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCIENDGIICALX
Held by institutions 93.0% 100.0% 94.5%
Institutions holding 1,224 285 290
Change in shares held, QoQ -1.7% +1.6% +0.5%
Institutions buying 733 143 148
Institutions selling 379 105 111
Buyers to sellers 1.93 1.36 1.33

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.

CIENDGIICALX
CIEN 1.00 0.33 0.22
DGII 0.33 1.00 0.15
CALX 0.22 0.15 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CIEN, DGII and CALX?

Ciena (CIEN) is the largest by market capitalisation: Ciena (CIEN) $38.28B, Digi International (DGII) $2.73B, Calix (CALX) $2.11B.

Which stock is cheaper, CIEN, DGII and CALX?

Calix (CALX) trades on the lowest price-to-earnings ratio (Ciena (CIEN) 58.5x, Digi International (DGII) 56.0x, Calix (CALX) 46.2x). On next year's consensus earnings, Calix (CALX) is cheapest (Ciena (CIEN) 39.5x, Digi International (DGII) 25.9x, Calix (CALX) 20.5x). 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: Ciena (CIEN) +32.6%, Digi International (DGII) +20.3%, Calix (CALX) +22.9%.

Which company is more profitable?

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

Which stock has performed better?

Over the past year Digi International (DGII) returned the most: Ciena (CIEN) +58.3%, Digi International (DGII) +99.3%, Calix (CALX) -50.5%. Over five years, Ciena (CIEN) compounded fastest (Ciena (CIEN) +37.6%/yr, Digi International (DGII) +25.7%/yr, Calix (CALX) -14.1%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Digi International (DGII) has been the steadiest (Ciena (CIEN) 79.6%, Digi International (DGII) 41.1%, Calix (CALX) 41.5%). Volatility measures how widely the price swings, not the risk of the business.

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

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 6. 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.