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NASDAQ · RBBNTechnologyIT Services & Consulting

Ribbon Communications Inc. Common Stock (RBBN)

$1.38−10.39%
Close Nov 5, 2026 · split-adjusted
Nov 5, 2026$1.38▼ 57.14% in range
Nov 5, 2025Low $1.32 · High $3.34Nov 5, 2026
What changed · written from our data
As of Nov 5, 2026

Ribbon Communications closed at $1.38 on Nov 5, down 10.39%, 58.7% below its 52-week closing high. Volume of 564.3K shares was 0.39× its 20-day average (below normal).

Split-adjusted performance: -25.0% over one month, -48.7% over six months, -56.5% over one year.

In the quarter ended Sep 30, 2026, revenue was $218.71M, up 1.6% from a year earlier, with a net margin of -4.2%.

Short interest was 5.2M shares at the Oct 15 settlement, up 3.8% from the prior report (5.7% of float, 3.4 days to cover).

Market cap$247.3M179.2M shares
Revenue · quarter$218.7M+1.6% YoY
Diluted EPS$-0.05—
P/E · TTM13.3×P/S 0.3×
Net margin-4.2%Gross 48.2%
Dividend yieldNone
52-week range1.32 – 3.34−58.7% from high
Volume564.3K0.39× 20-day avg
Volatility · 60d72.5%Annualised
Short % of float5.7%3.4 days to cover
Net cash-$302.5MCash $40.4M
Next earnings—Not scheduled
Split-adjusted performance
1W −15.3%1M −25.0%3M −35.5%6M −48.7%YTD −52.1%1Y −56.5%3Y −26.6%5Y −74.1%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within IT Services & Consulting

Percentile among 38 companies (100 = best)

6-month momentum27
Revenue growth20
Net margin53
Value (low P/E)77
Size46

Industry medians: 6-month return −14.1%, revenue growth +8.2%, net margin −5.9%, P/E 21.9×.

Short interest

Details →
Shares short5.2M+3.8% vs prior
Days to cover3.4Settled Oct 15
% of float5.7%
Short vol. 10d42.5%of daily volume

Closest peers by size in IT Services & Consulting

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
RBBNRibbon Communications$1.38−10.39%−48.7%+1.6%−4.2%13.3$247.3M
ASURAsure Software$9.60−1.34%+4.6%+10.4%−1.5%—$289.6MCompare
SMRTSmartRent$1.61−0.62%+41.2%+4.0%−14.2%—$305.6MCompare
IPXGInflection Point Acquisition Corp. VII$10.21−0.05%————$319.9MCompare
KDKKodiak AI$0.9511−13.54%−89.5%—−1076.7%—$190.8MCompare
UISUnisys$2.46+4.68%−19.3%−2.0%−20.1%—$179.4MCompare
TLSTelos$4.78−5.53%+8.1%+32.7%1.4%—$357.2MCompare
DMRCDigimarc$7.37−15.48%−14.1%−16.9%−69.3%—$166.2MCompare
FVNFuture Vision II Acquisition$11.45−0.87%+5.9%———$86.4MCompare

News about Ribbon Communications

All news →
Ribbon Communications (RBBN) Q3 Earnings Top EstimatesZacks Investment Research · Oct 27, 2026Neutral

Quick answers

What does Ribbon Communications do?
Ribbon Communications Inc provides communications technology to service providers and enterprises, offering software and high-performance hardware products, network solutions, and services for secure data and voice communications, as well as high-bandwidth networking for residential and enterprise customers across industries such as finance, education, government, utilities, and transportation. It operates through two segments: Cloud and Edge, which generate maximum revenue and deliver software-centric, cloud-native solutions for VoIP, VoLTE, VoNR, and unified communications, and IP Optical Networks, which support growing telecommunications traffic from 5G, distributed cloud computing, and other applications.
What is RBBN's market cap?
$247.26M, based on the Nov 5 close of $1.38.
What is RBBN's P/E ratio?
13.3× trailing-twelve-month earnings of $18.59M.
Does Ribbon Communications pay a dividend?
No regular cash dividend has been paid in the last year.
How much of RBBN is sold short?
5.2M shares, 5.7% of float, as of Oct 15, 2026.
What sector is RBBN in?
Technology, in the IT Services & Consulting industry.

About Ribbon Communications

Ribbon Communications Inc provides communications technology to service providers and enterprises, offering software and high-performance hardware products, network solutions, and services for secure data and voice communications, as well as high-bandwidth networking for residential and enterprise customers across industries such as finance, education, government, utilities, and transportation. It operates through two segments: Cloud and Edge, which generate maximum revenue and deliver software-centric, cloud-native solutions for VoIP, VoLTE, VoNR, and unified communications, and IP Optical Networks, which support growing telecommunications traffic from 5G, distributed cloud computing, and other applications. The Company generates the majority of its revenue from the United States.

HQ: Plano, TX3,080 employeesListed May 25, 2000ribboncommunications.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology