RBBN
Ribbon Communications Inc.
NASDAQ · Communication Services · Telecommunications Services · US
$1.54
−2.85%Price chart
Oct 6Oct 9Oct 14Oct 19Oct 22Oct 27Oct 30Nov 4
Key dataNov 4, 2026
Open$1.58
From 52W high−54.04%
Volume289324.00
Market cap$275.03M
P/E (TTM)14.0x
P/S (TTM)0.3x
Div yield—
Key dataNov 4, 2026
Open
$1.58
From 52W high
−54.04%
Volume
289324.00
Market cap
$275.03M
ValuationView details →
P/E (Fwd)
24.8x
EV/EBITDA
15.7x
P/E (TTM)
14.0x
RSI (14)
45.7
MomentumView details →
1D Return
−2.85%
YTD Return
−47.74%
SummaryUpdated Sep 1, 2026
Ribbon Communications Inc. (NASDAQ:RBBN) is a telecommunications technology company founded in 1997 and headquartered in Plano, Texas. Originally established as Sonus Networks, the company rebranded to Ribbon Communications in November 2017 following strategic acquisitions and business expansion. Ribbon provides critical communications infrastructure solutions that enable voice, data, and video communications across traditional and next-generation networks. The company serves telecommunications service providers, enterprises, and government agencies globally, helping them modernize their networks and transition to cloud-based communications platforms.
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