DGII vs DOX vs RBBN Stock Comparison

Digi International, Amdocs and Ribbon Communications Prices as of Oct 27, 2026 Peers: Industry group
DGII Digi International Inc
$78.85 +0.7% 1M +105.9% 1Y
Market cap
$2.96B
P/E
60.7x
Revenue (TTM)
$506.21M
Div. yield
–
Networking Equipment Technology
4 wins
DOX Amdocs Ltd
$61.77 +7.0% 1M -26.7% 1Y
Market cap
$6.87B
P/E
15.0x
Revenue (TTM)
$4.65B
Div. yield
–
Networking Equipment Technology
6 wins

Head to Head

10 decided of 12

Amdocs leads on 6 of the 12 questions below (Amdocs 6, Digi International 4). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionDGIIDOXRBBNLeader
Larger companyMarket capitalisation $2.96B $6.87B $280.94M DOX
Cheaper on earningsLower P/E, profitable companies only 60.7x 15.0x 15.1x DOX
Cheaper on forward earningsLower price / next fiscal year consensus EPS 28.4x 7.8x 28.0x DOX
Faster revenue growthRevenue growth, trailing twelve months +20.3% +0.1% -7.8% DGII
More profitableNet margin, trailing twelve months 9.6% 9.8% — DOX
Better return on capitalReturn on invested capital 6.9% — — –
Less leveragedLower net debt / EBITDA 0.7x 0.9x — DGII
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +105.9% -26.7% -59.4% DGII
Better 5-year returnAnnualised price return, 5 years +29.9%/yr -4.2%/yr -23.4%/yr DGII
Less volatileAnnualised volatility, 1 year 40.8% 29.8% 67.5% DOX
Higher overall scoreMean of the five percentile scores vs peers 61/100 64/100 — DOX

Percentile Scorecard

DGIIDOXRBBN

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

AxisDGIIDOXRBBN
Valuation 45 #62 of 112 90 #12 of 112 93 #9 of 112
Growth 70 #33 of 109 15 #93 of 109 30 #77 of 109
Profitability 82 #20 of 104 84 #18 of 104 –
Financial Health 50 #59 of 116 36 #75 of 116 –
Shareholder Returns 56 #36 of 81 96 #4 of 81 –
Overall 61 64 –
  • DGII ranked among 122 companies in Computer Hardware
  • DOX ranked among 122 companies in Computer Hardware
  • RBBN ranked among 122 companies in Computer Hardware

Price Performance

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

Returns

PeriodDGIIDOXRBBNSPY
1 month +0.7%+7.0%-22.2% -0.2%
3 months +17.7%+12.6%-31.7% +3.9%
6 months +43.9%-3.9%-46.2% +8.2%
Year to date +82.1%-23.3%-51.4% +12.9%
1 year +105.9%-26.7%-59.4% +12.3%
3 years +212.0%-21.5%-32.7% +87.4%
3 years, per year +46.2%-7.8%-12.4% +23.3%
5 years +270.2%-19.4%-73.7% +67.9%
5 years, per year +29.9%-4.2%-23.4% +10.9%
10 years +654.5%+5.9%-76.4% +261.1%
10 years, per year +22.4%+0.6%-13.4% +13.7%

Risk

MeasureDGIIDOXRBBNSPY
Volatility, 1Y 40.8%29.8%67.5% 12.7%
Downside volatility, 1Y 38.8%32.5%79.2% 12.7%
Beta vs S&P 500, 1Y 1.430.251.30 1.00
Return / volatility, 1Y 2.60-0.90-0.88 0.97
Max drawdown, 5Y -48.6%-49.5%-78.9% -25.4%
From 52-week high -7.5%-27.7%-59.5% -1.2%
52-week high $85.24$85.49$3.46 $779.14
52-week low $35.40$49.87$1.32 $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.

MultipleDGIIDOXRBBN
P/E now vs peer median 61.1xmedian 33.2x 15.0xmedian 33.2x 13.4xmedian 33.2x
P/S now vs peer median 5.9xmedian 2.8x 1.4xmedian 2.8x 0.3xmedian 2.8x
EV/EBITDA now vs peer median 27.2xmedian 20.0x 8.9xmedian 20.0x —median 20.0x
P/FCF now vs peer median 22.0xmedian 29.8x 7.8xmedian 29.8x 43.5xmedian 29.8x
P/B now vs peer median 4.4xmedian 3.0x 2.0xmedian 3.0x 0.6xmedian 3.0x
PEG now vs peer median 3.85median 1.17 -4.11median 1.17 0.41median 1.17

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 monthsDGIIDOXRBBN
Revenue $506.21M $4.65B $800.98M
Gross profit $323.07M $1.78B $386.62M
Operating income $70.58M $626.70M -$29.02M
Net income $48.74M $457.53M –
Free cash flow $135.98M $858.80M –
R&D $73.84M $343.21M $178.44M
EPS (diluted) $1.25 $4.17 $0.10
Cash & equivalents $27.97M $206.45M $40.38M
Total debt $108.13M $3.25B –
Shares (diluted) 38.92M 109.66M 177.25M
Enterprise value $2.85B $5.88B $280.94M

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
MetricDGIIDOXRBBN
P/E 61.1x 15.0x 13.4x
P/FCF 22.0x 7.8x 43.5x
P/Operating cash flow 21.6x 8.9x –
P/S 5.9x 1.4x 0.3x
P/B 4.4x 2.0x 0.6x
P/Tangible book 9.4x 2.2x 0.9x
EV/EBITDA 27.2x 8.9x –
EV/EBIT 43.5x 11.8x –
EV/Revenue 6.1x 1.6x 0.3x
EV/FCF 22.6x 8.6x –
EV/Operating cash flow 22.2x 9.9x –
PEG (3Y EPS CAGR) 3.85 -4.11 0.41

Growth

14 metrics
MetricDGIIDOXRBBN
Revenue growth (1Y) 20.3% 0.1% -7.8%
Revenue CAGR (3Y) 4.9% -1.1% -1.3%
Gross profit growth (1Y) 23.4% 2.9% -12.1%
Gross profit CAGR (3Y) 9.3% 1.5% -1.2%
Operating income growth (1Y) 24.0% -11.9% -240.9%
Operating income CAGR (3Y) 9.7% -3.0% 9.9%
Net income growth (1Y) 14.2% -18.0% –
Net income CAGR (3Y) 18.0% -7.0% –
EPS growth (1Y) 10.5% -14.5% 143.0%
EPS CAGR (3Y) 15.9% -3.7% 32.8%
Operating cash flow growth (1Y) 30.1% 1.6% –
Operating cash flow CAGR (3Y) 59.2% -0.8% –
Free cash flow growth (1Y) 31.6% 2.8% –
Free cash flow CAGR (3Y) 60.8% -3.2% –

Profitability

14 metrics
MetricDGIIDOXRBBN
Gross margin 63.8% 38.3% –
EBITDA margin 22.3% 17.9% –
Operating margin 13.9% 13.5% –
Pretax margin 12.4% 12.5% –
Net margin 9.6% 9.8% –
FCF margin 26.9% 18.5% –
Operating cash flow margin 27.3% 16.1% –
Return on equity 7.2% – –
Return on assets 5.0% 7.2% –
Return on invested capital 6.9% – –
Return on capital employed 8.4% 13.4% –
Asset turnover 0.5x 0.7x –
Cash conversion (OCF / net income) 2.8x 1.6x –
Stock comp / revenue 3.4% 2.4% –

Financial Health

11 metrics
MetricDGIIDOXRBBN
Debt / assets 11.2% 14.5% –
Debt / equity 0.2x 0.3x –
Net debt / EBITDA 0.7x 0.9x –
Debt / FCF 0.8x 1.1x –
Liabilities / assets 29.0% 48.1% –
Equity / assets 71.0% 51.9% –
Interest coverage 8.9x – –
Current ratio 1.1x 0.9x 1.3x
Quick ratio 0.7x 1.0x –
Cash ratio 0.2x 0.1x –
Altman Z-score 7.69 3.93 –

Shareholder Returns

7 metrics
MetricDGIIDOXRBBN
Dividend yield – 3.6% –
Net buyback yield 0.0% 7.9% –
Shareholder yield 0.0% 11.5% –
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.

ConsensusDGIIDOXRBBN
Forward P/E 28.4xFY2026 7.8xFY2026 28.0xFY2026
EPS, next fiscal year $2.78FY2026 $7.92FY2026 $0.05FY2026
EPS growth, next FY +32.4%FY2026 +13.3%FY2026 -92.4%FY2026
EPS growth, the year after +9.4% +4.0% +200.0%
Revenue, next fiscal year $519.66MFY2026 $4.46BFY2026 $790.52MFY2026
Revenue growth, next FY +20.8%FY2026 -1.6%FY2026 -6.4%FY2026
Revenue growth, the year after +3.8% +5.0% +11.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersDGIIDOXRBBN
Held by institutions 100.0% 93.0% 71.8%
Institutions holding 283 446 161
Change in shares held, QoQ +1.6% +0.5% -0.7%
Institutions buying 142 250 88
Institutions selling 105 151 41
Buyers to sellers 1.35 1.66 2.15

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.

DGIIDOXRBBN
DGII 1.00 -0.03 0.23
DOX -0.03 1.00 -0.03
RBBN 0.23 -0.03 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, DGII, DOX and RBBN?

Amdocs (DOX) is the largest by market capitalisation: Digi International (DGII) $2.96B, Amdocs (DOX) $6.87B, Ribbon Communications (RBBN) $280.94M.

Which stock is cheaper, DGII, DOX and RBBN?

Amdocs (DOX) trades on the lowest price-to-earnings ratio (Digi International (DGII) 60.7x, Amdocs (DOX) 15.0x, Ribbon Communications (RBBN) 15.1x). On next year's consensus earnings, Amdocs (DOX) is cheapest (Digi International (DGII) 28.4x, Amdocs (DOX) 7.8x, Ribbon Communications (RBBN) 28.0x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Digi International (DGII) grew revenue fastest over the trailing twelve months: Digi International (DGII) +20.3%, Amdocs (DOX) +0.1%, Ribbon Communications (RBBN) -7.8%.

Which company is more profitable?

Amdocs (DOX) has the highest net margin (Digi International (DGII) 9.6%, Amdocs (DOX) 9.8%).

Which stock has performed better?

Over the past year Digi International (DGII) returned the most: Digi International (DGII) +105.9%, Amdocs (DOX) -26.7%, Ribbon Communications (RBBN) -59.4%. Over five years, Digi International (DGII) compounded fastest (Digi International (DGII) +29.9%/yr, Amdocs (DOX) -4.2%/yr, Ribbon Communications (RBBN) -23.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Amdocs (DOX) has been the steadiest (Digi International (DGII) 40.8%, Amdocs (DOX) 29.8%, Ribbon Communications (RBBN) 67.5%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, DGII, DOX and RBBN?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Amdocs (DOX) 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.