CALX vs RBBN vs CSCO Stock Comparison

Calix, Ribbon Communications and Cisco Systems Prices as of Oct 26, 2026 Peers: Industry group
CALX Calix, Inc
$37.69 +13.7% 1M -38.5% 1Y
Market cap
$2.44B
P/E
47.6x
Revenue (TTM)
$1.11B
Div. yield
–
Networking Equipment Technology
2 wins
CSCO Cisco Systems, Inc.
$110.24 +3.3% 1M +56.1% 1Y
Market cap
$440.80B
P/E
33.2x
Revenue (TTM)
$63.33B
Div. yield
–
Networking Equipment Technology
8 wins

Head to Head

11 decided of 12

Cisco Systems leads on 8 of the 12 questions below (Cisco Systems 8, Calix 2, Ribbon Communications 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCALXRBBNCSCOLeader
Larger companyMarket capitalisation $2.44B $243.72M $440.80B CSCO
Cheaper on earningsLower P/E, profitable companies only 47.6x 15.6x 33.2x RBBN
Cheaper on forward earningsLower price / next fiscal year consensus EPS 23.3x 26.8x 23.3x CSCO
Faster revenue growthRevenue growth, trailing twelve months +27.8% -7.6% +11.8% CALX
More profitableNet margin, trailing twelve months 4.6% 2.0% 21.0% CSCO
Better return on capitalReturn on invested capital — 0.0% 15.9% CSCO
Less leveragedLower net debt / EBITDA — 9.3x 0.8x CSCO
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -38.5% -62.3% +56.1% CSCO
Better 5-year returnAnnualised price return, 5 years -8.5%/yr -25.6%/yr +14.4%/yr CSCO
Less volatileAnnualised volatility, 1 year 41.6% 67.4% 35.6% CSCO
Higher overall scoreMean of the five percentile scores vs peers 76/100 54/100 53/100 CALX

Percentile Scorecard

CALXRBBNCSCO

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

AxisCALXRBBNCSCO
Valuation 59 #46 of 111 80 #23 of 111 31 #77 of 111
Growth 81 #21 of 108 51 #54 of 108 40 #65 of 108
Profitability 65 #37 of 104 38 #65 of 104 87 #14 of 104
Financial Health 75 #29 of 115 14 #99 of 115 28 #83 of 115
Shareholder Returns 98 #3 of 81 89 #10 of 81 78 #19 of 81
Overall 76 54 53
  • CALX ranked among 121 companies in Computer Hardware
  • RBBN ranked among 121 companies in Computer Hardware
  • CSCO ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodCALXRBBNCSCOSPY
1 month +13.7%-25.6%+3.3% -0.8%
3 months +2.2%-34.3%-3.8% +3.5%
6 months -11.6%-49.6%+24.9% +7.0%
Year to date -28.8%-53.5%+43.1% +12.2%
1 year -38.5%-62.3%+56.1% +13.0%
3 years +15.2%-35.6%+113.8% +86.3%
3 years, per year +4.8%-13.6%+28.8% +23.1%
5 years -35.9%-77.1%+96.2% +68.6%
5 years, per year -8.5%-25.6%+14.4% +11.0%
10 years +493.5%-78.9%+260.9% +258.0%
10 years, per year +19.5%-14.4%+13.7% +13.6%

Risk

MeasureCALXRBBNCSCOSPY
Volatility, 1Y 41.6%67.4%35.6% 12.7%
Downside volatility, 1Y 44.0%79.2%37.3% 12.7%
Beta vs S&P 500, 1Y 0.881.291.11 1.00
Return / volatility, 1Y -0.92-0.921.58 1.02
Max drawdown, 5Y -65.3%-78.9%-38.6% -25.4%
From 52-week high -44.9%-61.3%-15.2% -1.8%
52-week high $68.42$3.46$130.00 $779.14
52-week low $33.15$1.32$71.04 $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.

MultipleCALXRBBNCSCO
P/E now vs peer median 46.8xmedian 32.0x 15.2xmedian 32.0x 32.8xmedian 32.0x
P/S now vs peer median 2.1xmedian 2.8x 0.3xmedian 2.8x 6.9xmedian 2.8x
EV/EBITDA now vs peer median 27.5xmedian 19.4x 17.2xmedian 19.4x 25.1xmedian 19.4x
P/FCF now vs peer median 27.8xmedian 29.0x 32.6xmedian 29.0x 34.1xmedian 29.0x
P/B now vs peer median 3.3xmedian 2.9x 0.6xmedian 2.9x 8.7xmedian 2.9x
PEG now vs peer median 6.61median 1.13 0.49median 1.13 12.20median 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 monthsCALXRBBNCSCO
Revenue $1.11B $797.64M $63.33B
Gross profit $628.73M $389.06M $40.86B
Operating income $61.25M -$31.85M $15.37B
Net income $51.19M $15.60M $13.27B
Free cash flow $85.42M $7.35M $12.77B
R&D $207.99M $179.91M $9.56B
EPS (diluted) $0.78 $0.09 $3.33
Cash & equivalents $68.91M $43.51M $7.22B
Total debt – $329.36M $29.53B
Shares (diluted) 65.51M 177.25M 3.99B
Enterprise value $1.27B -$38.55M $376.73B

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
MetricCALXRBBNCSCO
P/E 46.8x 15.2x 32.8x
P/FCF 27.8x 32.6x 34.1x
P/Operating cash flow 21.7x 10.8x 30.7x
P/S 2.1x 0.3x 6.9x
P/B 3.3x 0.6x 8.7x
P/Tangible book 3.3x 0.9x 10.2x
EV/EBITDA 27.5x 17.2x 25.1x
EV/EBIT 35.6x -16.5x 29.2x
EV/Revenue 2.0x 0.7x 7.1x
EV/FCF 25.5x 71.5x 35.1x
EV/Operating cash flow 19.9x 23.6x 31.6x
PEG (3Y EPS CAGR) 6.61 0.49 12.20

Growth

14 metrics
MetricCALXRBBNCSCO
Revenue growth (1Y) 27.8% -7.6% 11.8%
Revenue CAGR (3Y) 3.9% -1.6% 3.6%
Gross profit growth (1Y) 30.3% -11.9% 11.1%
Gross profit CAGR (3Y) 7.4% -1.0% 4.6%
Operating income growth (1Y) 273.3% -288.4% 30.7%
Operating income CAGR (3Y) 3.8% 10.1% 0.7%
Net income growth (1Y) 290.5% 135.1% 30.3%
Net income CAGR (3Y) 4.9% 31.4% 1.7%
EPS growth (1Y) 287.6% 135.0% 30.7%
EPS CAGR (3Y) 7.1% 31.2% 2.7%
Operating cash flow growth (1Y) 24.5% -47.8% -0.1%
Operating cash flow CAGR (3Y) 41.8% 49.9% -10.7%
Free cash flow growth (1Y) 19.4% -7.7% -3.9%
Free cash flow CAGR (3Y) 62.0% 99.7% -12.5%

Profitability

14 metrics
MetricCALXRBBNCSCO
Gross margin 56.6% 48.8% 64.5%
EBITDA margin 7.1% 3.8% 28.3%
Operating margin 5.5% -4.0% 24.3%
Pretax margin 6.5% -9.4% 25.3%
Net margin 4.6% 2.0% 21.0%
FCF margin 7.7% 0.9% 20.2%
Operating cash flow margin 9.9% 2.8% 22.4%
Return on equity 7.1% 3.9% 26.8%
Return on assets 5.4% 1.4% 10.4%
Return on invested capital – 0.0% 15.9%
Return on capital employed 8.2% -3.8% 17.9%
Asset turnover 1.2x 0.7x 0.5x
Cash conversion (OCF / net income) 2.1x 1.4x 1.1x
Stock comp / revenue 7.2% 2.7% 6.0%

Financial Health

11 metrics
MetricCALXRBBNCSCO
Debt / assets – 28.8% 22.8%
Debt / equity – 0.8x 0.6x
Net debt / EBITDA – 9.3x 0.8x
Debt / FCF – 44.8x 2.3x
Liabilities / assets 25.6% 65.6% 61.2%
Equity / assets 74.4% 34.4% 38.8%
Interest coverage – – 10.5x
Current ratio 2.8x 1.3x 0.9x
Quick ratio 1.6x 1.1x 0.6x
Cash ratio 0.9x 0.1x 0.4x
Altman Z-score 7.18 -1.06 4.16

Shareholder Returns

7 metrics
MetricCALXRBBNCSCO
Dividend yield – – 1.5%
Net buyback yield 8.1% 3.2% 1.3%
Shareholder yield 8.1% 3.2% 2.8%
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.

ConsensusCALXRBBNCSCO
Forward P/E 23.3xFY2026 26.8xFY2026 23.3xFY2027
EPS, next fiscal year $1.62FY2026 $0.05FY2026 $4.74FY2027
EPS growth, next FY +20.9%FY2026 -92.4%FY2026 +9.5%FY2027
EPS growth, the year after +48.1% +200.0% +20.7%
Revenue, next fiscal year $1.11BFY2026 $790.52MFY2026 $74.93BFY2027
Revenue growth, next FY +11.0%FY2026 -6.4%FY2026 +18.3%FY2027
Revenue growth, the year after +18.8% +11.9% +0.6%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCALXRBBNCSCO
Held by institutions 94.5% 71.8% 80.1%
Institutions holding 288 161 4,044
Change in shares held, QoQ +0.5% -0.7% +5.0%
Institutions buying 148 88 1,846
Institutions selling 111 41 1,816
Buyers to sellers 1.33 2.15 1.02

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.

CALXRBBNCSCO
CALX 1.00 0.13 0.22
RBBN 0.13 1.00 0.22
CSCO 0.22 0.22 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, CALX, RBBN and CSCO?

Cisco Systems (CSCO) is the largest by market capitalisation: Calix (CALX) $2.44B, Ribbon Communications (RBBN) $243.72M, Cisco Systems (CSCO) $440.80B.

Which stock is cheaper, CALX, RBBN and CSCO?

Ribbon Communications (RBBN) trades on the lowest price-to-earnings ratio (Calix (CALX) 47.6x, Ribbon Communications (RBBN) 15.6x, Cisco Systems (CSCO) 33.2x). On next year's consensus earnings, Cisco Systems (CSCO) is cheapest (Calix (CALX) 23.3x, Ribbon Communications (RBBN) 26.8x, Cisco Systems (CSCO) 23.3x). 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: Calix (CALX) +27.8%, Ribbon Communications (RBBN) -7.6%, Cisco Systems (CSCO) +11.8%.

Which company is more profitable?

Cisco Systems (CSCO) has the highest net margin (Calix (CALX) 4.6%, Ribbon Communications (RBBN) 2.0%, Cisco Systems (CSCO) 21.0%). On return on invested capital, Cisco Systems (CSCO) leads (Ribbon Communications (RBBN) 0.0%, Cisco Systems (CSCO) 15.9%).

Which stock has performed better?

Over the past year Cisco Systems (CSCO) returned the most: Calix (CALX) -38.5%, Ribbon Communications (RBBN) -62.3%, Cisco Systems (CSCO) +56.1%. Over five years, Cisco Systems (CSCO) compounded fastest (Calix (CALX) -8.5%/yr, Ribbon Communications (RBBN) -25.6%/yr, Cisco Systems (CSCO) +14.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Cisco Systems (CSCO) has been the steadiest (Calix (CALX) 41.6%, Ribbon Communications (RBBN) 67.4%, Cisco Systems (CSCO) 35.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CALX, RBBN and CSCO?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Cisco Systems (CSCO) leads on 8. 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.