ATEN vs CALX vs DGII Stock Comparison

A10 Networks, Calix and Digi International Prices as of Nov 3, 2026 Peers: Industry group
ATEN A10 Networks, Inc.
$24.31 -12.0% 1M +35.3% 1Y
Market cap
$1.72B
P/E
40.1x
Revenue (TTM)
$310.17M
Div. yield
–
Networking Equipment Technology
5 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
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
3 wins

Head to Head

11 decided of 12

A10 Networks leads on 5 of the 12 questions below (A10 Networks 5, Digi International 3, Calix 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionATENCALXDGIILeader
Larger companyMarket capitalisation $1.72B $2.11B $2.73B DGII
Cheaper on earningsLower P/E, profitable companies only 40.1x 46.2x 56.0x ATEN
Cheaper on forward earningsLower price / next fiscal year consensus EPS 24.3x 20.5x 25.9x CALX
Faster revenue growthRevenue growth, trailing twelve months +12.2% +22.9% +20.3% CALX
More profitableNet margin, trailing twelve months 13.9% 4.0% 9.6% ATEN
Better return on capitalReturn on invested capital 8.9% — 6.9% ATEN
Less leveragedLower net debt / EBITDA -2.1x — 0.7x ATEN
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +35.3% -50.5% +99.3% DGII
Better 5-year returnAnnualised price return, 5 years +7.5%/yr -14.1%/yr +25.7%/yr DGII
Less volatileAnnualised volatility, 1 year 40.5% 41.5% 41.1% ATEN
Higher overall scoreMean of the five percentile scores vs peers 51/100 73/100 59/100 CALX

Percentile Scorecard

ATENCALXDGII

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

AxisATENCALXDGII
Valuation 45 #62 of 112 59 #47 of 112 43 #64 of 112
Growth 28 #78 of 108 71 #32 of 108 68 #35 of 108
Profitability 84 #18 of 104 60 #42 of 104 82 #20 of 104
Financial Health 33 #78 of 116 75 #30 of 116 48 #61 of 116
Shareholder Returns 68 #28 of 85 100 #1 of 85 54 #40 of 85
Overall 51 73 59
  • ATEN ranked among 121 companies in Computer Hardware
  • CALX 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

PeriodATENCALXDGIISPY
1 month -12.0%-4.4%-4.7% -2.0%
3 months -20.8%-15.8%-0.2% -2.2%
6 months -10.4%-27.4%+23.3% +4.2%
Year to date +37.4%-37.2%+66.4% +10.6%
1 year +35.3%-50.5%+99.3% +10.4%
3 years +122.4%-6.5%+186.1% +73.6%
3 years, per year +30.6%-2.2%+42.0% +20.2%
5 years +43.3%-53.2%+213.3% +61.6%
5 years, per year +7.5%-14.1%+25.7% +10.1%
10 years +224.6%+403.9%+646.4% +261.3%
10 years, per year +12.5%+17.6%+22.3% +13.7%

Risk

MeasureATENCALXDGIISPY
Volatility, 1Y 40.5%41.5%41.1% 12.8%
Downside volatility, 1Y 43.3%45.3%39.5% 12.8%
Beta vs S&P 500, 1Y 1.150.961.49 1.00
Return / volatility, 1Y 0.87-1.222.42 0.81
Max drawdown, 5Y -44.6%-65.3%-48.6% -25.4%
From 52-week high -36.3%-50.5%-15.5% -3.2%
52-week high $38.14$67.24$85.24 $779.14
52-week low $16.55$33.15$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.

MultipleATENCALXDGII
P/E now vs peer median 40.8xmedian 30.7x 45.6xmedian 30.7x 55.8xmedian 30.7x
P/S now vs peer median 5.7xmedian 2.6x 1.8xmedian 2.6x 5.4xmedian 2.6x
EV/EBITDA now vs peer median 24.5xmedian 18.9x 24.4xmedian 18.9x 24.9xmedian 18.9x
P/FCF now vs peer median 28.9xmedian 28.0x 33.1xmedian 28.0x 20.1xmedian 28.0x
P/B now vs peer median 7.4xmedian 2.8x 2.9xmedian 2.8x 4.0xmedian 2.8x
PEG now vs peer median -19.01median 1.07 42.89median 1.07 3.52median 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 monthsATENCALXDGII
Revenue $310.17M $1.15B $506.21M
Gross profit $246.21M $637.49M $323.07M
Operating income $50.08M $60.39M $70.58M
Net income $42.97M $45.75M $48.74M
Free cash flow $60.94M $62.16M $135.98M
R&D $77.12M $215.00M $73.84M
EPS (diluted) $0.57 $0.71 $1.25
Cash & equivalents $54.70M $55.89M $27.97M
Total debt $219.52M – $108.13M
Shares (diluted) 75.65M 64.45M 38.92M
Enterprise value $246.61M $1.13B $2.62B

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
MetricATENCALXDGII
P/E 40.8x 45.6x 55.8x
P/FCF 28.9x 33.1x 20.1x
P/Operating cash flow 22.9x 24.6x 19.7x
P/S 5.7x 1.8x 5.4x
P/B 7.4x 2.9x 4.0x
P/Tangible book 7.9x 2.9x 8.6x
EV/EBITDA 24.5x 24.4x 24.9x
EV/EBIT 32.4x 31.5x 39.9x
EV/Revenue 5.2x 1.7x 5.6x
EV/FCF 26.6x 30.6x 20.7x
EV/Operating cash flow 21.1x 22.8x 20.3x
PEG (3Y EPS CAGR) -19.01 42.89 3.52

Growth

14 metrics
MetricATENCALXDGII
Revenue growth (1Y) 12.2% 22.9% 20.3%
Revenue CAGR (3Y) 4.3% 4.0% 4.9%
Gross profit growth (1Y) 11.7% 21.6% 23.4%
Gross profit CAGR (3Y) 4.0% 6.4% 9.3%
Operating income growth (1Y) 4.5% 958.5% 24.0%
Operating income CAGR (3Y) -0.2% 6.0% 9.7%
Net income growth (1Y) -15.8% 730.9% 14.2%
Net income CAGR (3Y) -2.1% -1.5% 18.0%
EPS growth (1Y) -18.6% 783.2% 10.5%
EPS CAGR (3Y) -2.1% 1.1% 15.9%
Operating cash flow growth (1Y) -9.8% -19.9% 30.1%
Operating cash flow CAGR (3Y) 8.6% 20.7% 59.2%
Free cash flow growth (1Y) -13.7% -27.3% 31.6%
Free cash flow CAGR (3Y) 7.4% 29.3% 60.8%

Profitability

14 metrics
MetricATENCALXDGII
Gross margin 79.4% 55.6% 63.8%
EBITDA margin 21.4% 6.8% 22.3%
Operating margin 16.1% 5.3% 13.9%
Pretax margin 17.5% 6.1% 12.4%
Net margin 13.9% 4.0% 9.6%
FCF margin 19.6% 5.4% 26.9%
Operating cash flow margin 24.8% 7.3% 27.3%
Return on equity 18.7% 6.5% 7.2%
Return on assets 6.5% 4.9% 5.0%
Return on invested capital 8.9% – 6.9%
Return on capital employed 17.8% 8.0% 8.4%
Asset turnover 0.5x 1.2x 0.5x
Cash conversion (OCF / net income) 1.8x 1.8x 2.8x
Stock comp / revenue 7.5% 7.0% 3.4%

Financial Health

11 metrics
MetricATENCALXDGII
Debt / assets 32.4% – 11.2%
Debt / equity 0.9x – 0.2x
Net debt / EBITDA -2.1x – 0.7x
Debt / FCF 3.6x – 0.8x
Liabilities / assets 64.9% 24.1% 29.0%
Equity / assets 35.1% 75.9% 71.0%
Interest coverage – – 8.9x
Current ratio 1.3x 3.0x 1.1x
Quick ratio 1.1x 1.5x 0.7x
Cash ratio 1.0x 0.8x 0.2x
Altman Z-score 3.34 7.03 7.14

Shareholder Returns

7 metrics
MetricATENCALXDGII
Dividend yield 1.0% – –
Net buyback yield 1.2% 12.0% 0.0%
Shareholder yield 2.2% 12.0% 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.

ConsensusATENCALXDGII
Forward P/E 24.3xFY2026 20.5xFY2026 25.9xFY2026
EPS, next fiscal year $1.00FY2026 $1.62FY2026 $2.78FY2026
EPS growth, next FY +11.1%FY2026 +20.9%FY2026 +32.4%FY2026
EPS growth, the year after +13.0% +48.1% +9.4%
Revenue, next fiscal year $342.96MFY2026 $1.11BFY2026 $519.66MFY2026
Revenue growth, next FY +18.0%FY2026 +11.0%FY2026 +20.8%FY2026
Revenue growth, the year after +3.4% +18.8% +3.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersATENCALXDGII
Held by institutions 100.0% 94.5% 100.0%
Institutions holding 312 290 285
Change in shares held, QoQ +5.8% +0.5% +1.6%
Institutions buying 172 148 143
Institutions selling 99 111 105
Buyers to sellers 1.74 1.33 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.

ATENCALXDGII
ATEN 1.00 0.19 0.28
CALX 0.19 1.00 0.15
DGII 0.28 0.15 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ATEN, CALX and DGII?

Digi International (DGII) is the largest by market capitalisation: A10 Networks (ATEN) $1.72B, Calix (CALX) $2.11B, Digi International (DGII) $2.73B.

Which stock is cheaper, ATEN, CALX and DGII?

A10 Networks (ATEN) trades on the lowest price-to-earnings ratio (A10 Networks (ATEN) 40.1x, Calix (CALX) 46.2x, Digi International (DGII) 56.0x). On next year's consensus earnings, Calix (CALX) is cheapest (A10 Networks (ATEN) 24.3x, Calix (CALX) 20.5x, Digi International (DGII) 25.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Calix (CALX) grew revenue fastest over the trailing twelve months: A10 Networks (ATEN) +12.2%, Calix (CALX) +22.9%, Digi International (DGII) +20.3%.

Which company is more profitable?

A10 Networks (ATEN) has the highest net margin (A10 Networks (ATEN) 13.9%, Calix (CALX) 4.0%, Digi International (DGII) 9.6%). On return on invested capital, A10 Networks (ATEN) leads (A10 Networks (ATEN) 8.9%, Digi International (DGII) 6.9%).

Which stock has performed better?

Over the past year Digi International (DGII) returned the most: A10 Networks (ATEN) +35.3%, Calix (CALX) -50.5%, Digi International (DGII) +99.3%. Over five years, Digi International (DGII) compounded fastest (A10 Networks (ATEN) +7.5%/yr, Calix (CALX) -14.1%/yr, Digi International (DGII) +25.7%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, A10 Networks (ATEN) has been the steadiest (A10 Networks (ATEN) 40.5%, Calix (CALX) 41.5%, Digi International (DGII) 41.1%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ATEN, CALX 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, A10 Networks (ATEN) 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.