CALX vs CSCO vs RBBN Stock Comparison

Calix, Cisco Systems and Ribbon Communications Prices as of Nov 5, 2026 Peers: Industry group
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CALX Calix, Inc
$31.86 -9.6% 1M -52.6% 1Y
Market cap
$1.92B
P/E
41.9x
Revenue (TTM)
$1.15B
Div. yield
–
Networking Equipment Technology
3 wins
CSCO Cisco Systems, Inc.
$95.72 -18.8% 1M +32.8% 1Y
Market cap
$371.11B
P/E
28.0x
Revenue (TTM)
$63.33B
Div. yield
–
Networking Equipment Technology
7 wins

Head to Head

11 decided of 12

Cisco Systems leads on 7 of the 12 questions below (Cisco Systems 7, Calix 3, Ribbon Communications 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionCALXCSCORBBNLeader
Larger companyMarket capitalisation $1.92B $371.11B $239.67M CSCO
Cheaper on earningsLower P/E, profitable companies only 41.9x 28.0x 12.9x RBBN
Cheaper on forward earningsLower price / next fiscal year consensus EPS 19.1x 20.1x — CALX
Faster revenue growthRevenue growth, trailing twelve months +22.9% +11.8% -7.8% CALX
More profitableNet margin, trailing twelve months 4.0% 21.0% 2.3% CSCO
Better return on capitalReturn on invested capital — 15.9% 0.0% CSCO
Less leveragedLower net debt / EBITDA — 0.8x 9.4x CSCO
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -52.6% +32.8% -57.1% CSCO
Better 5-year returnAnnualised price return, 5 years -14.9%/yr +10.9%/yr -25.6%/yr CSCO
Less volatileAnnualised volatility, 1 year 41.8% 36.6% 70.2% CSCO
Higher overall scoreMean of the five percentile scores vs peers 71/100 52/100 40/100 CALX

Percentile Scorecard

CALXCSCORBBN

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

AxisCALXCSCORBBN
Valuation 50 #57 of 112 28 #81 of 112 63 #42 of 112
Growth 69 #34 of 108 37 #68 of 108 15 #92 of 108
Profitability 59 #43 of 104 87 #14 of 104 31 #72 of 104
Financial Health 75 #30 of 116 30 #82 of 116 17 #97 of 116
Shareholder Returns 100 #1 of 83 78 #19 of 83 72 #24 of 83
Overall 71 52 40
  • CALX ranked among 121 companies in Computer Hardware
  • CSCO ranked among 121 companies in Computer Hardware
  • RBBN ranked among 121 companies in Computer Hardware

Price Performance

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

Returns

PeriodCALXCSCORBBNSPY
1 month -9.6%-18.8%-22.0% -5.9%
3 months -14.9%-20.8%-34.3% -4.6%
6 months -26.8%+3.9%-48.7% +0.2%
Year to date -39.8%+24.3%-52.1% +7.5%
1 year -52.6%+32.8%-57.1% +8.2%
3 years -10.5%+79.6%-34.6% +68.3%
3 years, per year -3.6%+21.6%-13.2% +19.0%
5 years -55.2%+67.7%-77.2% +56.5%
5 years, per year -14.9%+10.9%-25.6% +9.4%
10 years +382.7%+217.1%-75.2% +251.5%
10 years, per year +17.1%+12.2%-13.0% +13.4%

Risk

MeasureCALXCSCORBBNSPY
Volatility, 1Y 41.8%36.6%70.2% 13.6%
Downside volatility, 1Y 45.9%39.3%80.4% 14.2%
Beta vs S&P 500, 1Y 0.991.211.38 1.00
Return / volatility, 1Y -1.260.90-0.81 0.60
Max drawdown, 5Y -65.3%-38.6%-78.9% -25.4%
From 52-week high -52.6%-26.4%-58.7% -5.9%
52-week high $67.18$130.00$3.34 $779.14
52-week low $31.86$71.04$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.

MultipleCALXCSCORBBN
P/E now vs peer median 43.7xmedian 25.2x 28.5xmedian 25.2x 13.3xmedian 25.2x
P/S now vs peer median 1.7xmedian 2.4x 6.0xmedian 2.4x 0.3xmedian 2.4x
EV/EBITDA now vs peer median 23.2xmedian 16.2x 21.9xmedian 16.2x 17.1xmedian 16.2x
P/FCF now vs peer median 31.7xmedian 23.4x 29.6xmedian 23.4x -8.5xmedian 23.4x
P/B now vs peer median 2.8xmedian 2.3x 7.5xmedian 2.3x 0.6xmedian 2.3x
PEG now vs peer median 41.08median 0.98 10.59median 0.98 0.41median 0.98

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 monthsCALXCSCORBBN
Revenue $1.15B $63.33B $800.98M
Gross profit $637.49M $40.86B $386.62M
Operating income $60.39M $15.37B -$29.02M
Net income $45.75M $13.27B $18.59M
Free cash flow $62.16M $12.77B -$29.11M
R&D $215.00M $9.56B $178.44M
EPS (diluted) $0.71 $3.33 $0.10
Cash & equivalents $55.89M $7.22B $40.38M
Total debt – $29.53B $342.88M
Shares (diluted) 64.45M 3.99B 178.86M
Enterprise value $937.84M $307.04B -$8.18M

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
MetricCALXCSCORBBN
P/E 43.7x 28.5x 13.3x
P/FCF 31.7x 29.6x -8.5x
P/Operating cash flow 23.6x 26.6x -13.2x
P/S 1.7x 6.0x 0.3x
P/B 2.8x 7.5x 0.6x
P/Tangible book 2.8x 8.8x 0.9x
EV/EBITDA 23.2x 21.9x 17.1x
EV/EBIT 30.0x 25.5x -18.9x
EV/Revenue 1.6x 6.2x 0.7x
EV/FCF 29.2x 30.7x -18.9x
EV/Operating cash flow 21.7x 27.6x -29.4x
PEG (3Y EPS CAGR) 41.08 10.59 0.41

Growth

14 metrics
MetricCALXCSCORBBN
Revenue growth (1Y) 22.9% 11.8% -7.8%
Revenue CAGR (3Y) 4.0% 3.6% -1.3%
Gross profit growth (1Y) 21.6% 11.1% -12.1%
Gross profit CAGR (3Y) 6.4% 4.6% -1.2%
Operating income growth (1Y) 958.5% 30.7% -240.9%
Operating income CAGR (3Y) 6.0% 0.7% 9.9%
Net income growth (1Y) 730.9% 30.3% 143.2%
Net income CAGR (3Y) -1.5% 1.7% 33.0%
EPS growth (1Y) 783.2% 30.7% 142.6%
EPS CAGR (3Y) 1.1% 2.7% 32.7%
Operating cash flow growth (1Y) -19.9% -0.1% -122.3%
Operating cash flow CAGR (3Y) 20.7% -10.7% -50.8%
Free cash flow growth (1Y) -27.3% -3.9% -155.4%
Free cash flow CAGR (3Y) 29.3% -12.5% -90.6%

Profitability

14 metrics
MetricCALXCSCORBBN
Gross margin 55.6% 64.5% 48.3%
EBITDA margin 6.8% 28.3% 4.0%
Operating margin 5.3% 24.3% -3.6%
Pretax margin 6.1% 25.3% -8.9%
Net margin 4.0% 21.0% 2.3%
FCF margin 5.4% 20.2% -3.6%
Operating cash flow margin 7.3% 22.4% -2.3%
Return on equity 6.5% 26.8% 4.8%
Return on assets 4.9% 10.4% 1.6%
Return on invested capital – 15.9% 0.0%
Return on capital employed 8.0% 17.9% -3.5%
Asset turnover 1.2x 0.5x 0.7x
Cash conversion (OCF / net income) 1.8x 1.1x -1.0x
Stock comp / revenue 7.0% 6.0% 2.7%

Financial Health

11 metrics
MetricCALXCSCORBBN
Debt / assets – 22.8% 29.8%
Debt / equity – 0.6x 0.9x
Net debt / EBITDA – 0.8x 9.4x
Debt / FCF – 2.3x -11.8x
Liabilities / assets 24.1% 61.2% 66.2%
Equity / assets 75.9% 38.8% 33.8%
Interest coverage – 10.5x –
Current ratio 3.0x 0.9x 1.3x
Quick ratio 1.5x 0.6x 1.1x
Cash ratio 0.8x 0.4x 0.1x
Altman Z-score 6.80 3.73 -1.04

Shareholder Returns

7 metrics
MetricCALXCSCORBBN
Dividend yield – 1.7% –
Net buyback yield 12.6% 1.5% 1.7%
Shareholder yield 12.6% 3.2% 1.7%
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.

ConsensusCALXCSCORBBN
Forward P/E 19.1xFY2026 20.1xFY2027 –
EPS, next fiscal year $1.67FY2026 $4.76FY2027 $-0.01FY2026
EPS growth, next FY +24.6%FY2026 +9.9%FY2027 -101.5%FY2026
EPS growth, the year after +56.3% +21.2% –
Revenue, next fiscal year $1.11BFY2026 $75.08BFY2027 $769.95MFY2026
Revenue growth, next FY +11.0%FY2026 +18.6%FY2027 -8.8%FY2026
Revenue growth, the year after +19.6% +1.1% +14.1%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersCALXCSCORBBN
Held by institutions 94.5% 80.1% 71.8%
Institutions holding 290 4,051 161
Change in shares held, QoQ +0.5% +5.0% -0.7%
Institutions buying 148 1,850 88
Institutions selling 111 1,819 41
Buyers to sellers 1.33 1.02 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.

CALXCSCORBBN
CALX 1.00 0.23 0.16
CSCO 0.23 1.00 0.23
RBBN 0.16 0.23 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, CALX, CSCO and RBBN?

Cisco Systems (CSCO) is the largest by market capitalisation: Calix (CALX) $1.92B, Cisco Systems (CSCO) $371.11B, Ribbon Communications (RBBN) $239.67M.

Which stock is cheaper, CALX, CSCO and RBBN?

Ribbon Communications (RBBN) trades on the lowest price-to-earnings ratio (Calix (CALX) 41.9x, Cisco Systems (CSCO) 28.0x, Ribbon Communications (RBBN) 12.9x). On next year's consensus earnings, Calix (CALX) is cheapest (Calix (CALX) 19.1x, Cisco Systems (CSCO) 20.1x). 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) +22.9%, Cisco Systems (CSCO) +11.8%, Ribbon Communications (RBBN) -7.8%.

Which company is more profitable?

Cisco Systems (CSCO) has the highest net margin (Calix (CALX) 4.0%, Cisco Systems (CSCO) 21.0%, Ribbon Communications (RBBN) 2.3%). On return on invested capital, Cisco Systems (CSCO) leads (Cisco Systems (CSCO) 15.9%, Ribbon Communications (RBBN) 0.0%).

Which stock has performed better?

Over the past year Cisco Systems (CSCO) returned the most: Calix (CALX) -52.6%, Cisco Systems (CSCO) +32.8%, Ribbon Communications (RBBN) -57.1%. Over five years, Cisco Systems (CSCO) compounded fastest (Calix (CALX) -14.9%/yr, Cisco Systems (CSCO) +10.9%/yr, Ribbon Communications (RBBN) -25.6%/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) 41.8%, Cisco Systems (CSCO) 36.6%, Ribbon Communications (RBBN) 70.2%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, CALX, CSCO 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, Cisco Systems (CSCO) leads on 7. 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.