NASDAQ:RBBN | Historical Stock Price | Ribbon Communications Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2000-05-25 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.09$3.47$11.03$35.04$111.33$353.722000-05-252026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$4.82$4.82822,900
2018-12-28$5.09$5.09236,200
2018-12-27$5.12$5.12650,500
2018-12-26$4.88$4.88291,200
2018-12-24$4.78$4.78122,600
2018-12-21$4.82$4.82594,100
2018-12-20$5.03$5.03168,500
2018-12-19$5.07$5.07233,600
2018-12-18$5.12$5.12186,800
2018-12-17$5.19$5.19271,300
2018-12-14$5.37$5.37175,600
2018-12-13$5.47$5.47285,900
2018-12-12$5.53$5.53222,000
2018-12-11$5.23$5.23203,900
2018-12-10$5.23$5.23254,400
2018-12-07$5.09$5.09161,300
2018-12-06$5.21$5.21239,500
2018-12-04$5.19$5.19355,300
2018-12-03$5.38$5.38267,000
2018-11-30$5.34$5.34374,300
2018-11-29$5.54$5.54258,700
2018-11-28$5.48$5.48297,200
2018-11-27$5.53$5.53212,200
2018-11-26$5.61$5.61270,800
2018-11-23$5.72$5.72123,700
2018-11-21$5.74$5.74242,700
2018-11-20$5.76$5.76332,300
2018-11-19$5.72$5.72338,900
2018-11-16$5.74$5.74730,000
2018-11-15$5.91$5.91366,900
2018-11-14$6.12$6.12462,700
2018-11-13$6.20$6.204,410,100
2018-11-12$6.63$6.63360,600
2018-11-09$6.75$6.75320,400
2018-11-08$6.93$6.93313,900
2018-11-07$6.80$6.80395,800
2018-11-06$6.77$6.77219,400
2018-11-05$6.71$6.71160,000
2018-11-02$6.75$6.75262,200
2018-11-01$6.75$6.75306,600
2018-10-31$6.80$6.801,179,300
2018-10-30$5.65$5.65424,300
2018-10-29$5.49$5.49167,800
2018-10-26$5.53$5.53172,400
2018-10-25$5.63$5.63169,500
2018-10-24$5.61$5.61166,500
2018-10-23$5.86$5.86170,000
2018-10-22$5.86$5.86257,600
2018-10-19$5.65$5.65184,800
2018-10-18$5.72$5.72182,100
2018-10-17$5.88$5.8897,300
2018-10-16$5.99$5.99122,600
2018-10-15$5.73$5.73309,100
2018-10-12$5.82$5.82273,900
2018-10-11$5.85$5.85184,800
2018-10-10$5.95$5.95318,800
2018-10-09$6.23$6.23262,900
2018-10-08$6.35$6.35268,700
2018-10-05$6.51$6.51147,900
2018-10-04$6.70$6.7091,100
2018-10-03$6.78$6.78102,400
2018-10-02$6.68$6.68102,500
2018-10-01$6.79$6.79134,400
2018-09-28$6.83$6.83114,500
2018-09-27$6.78$6.7892,700
2018-09-26$6.80$6.80132,400
2018-09-25$6.97$6.9799,000
2018-09-24$7.03$7.03204,400
2018-09-21$7.04$7.04695,800
2018-09-20$6.87$6.87106,900
2018-09-19$6.79$6.79134,900
2018-09-18$6.81$6.81146,800
2018-09-17$6.79$6.79188,400
2018-09-14$6.67$6.67132,900
2018-09-13$6.72$6.72125,000
2018-09-12$6.67$6.6794,500
2018-09-11$6.77$6.77145,800
2018-09-10$6.78$6.7898,600
2018-09-07$6.84$6.84157,100
2018-09-06$6.91$6.91137,400
2018-09-05$6.96$6.96437,800
2018-09-04$6.75$6.75330,000
2018-08-31$6.92$6.92265,000
2018-08-30$6.91$6.91233,700
2018-08-29$7.07$7.07199,000
2018-08-28$7.13$7.13171,100
2018-08-27$7.14$7.14479,300
2018-08-24$7.63$7.63179,900
2018-08-23$7.70$7.70203,500
2018-08-22$7.59$7.59653,500
2018-08-21$7.78$7.78232,500
2018-08-20$7.66$7.66402,600
2018-08-17$7.49$7.49268,900
2018-08-16$7.59$7.59204,800
2018-08-15$7.52$7.52442,700
2018-08-14$7.57$7.571,320,100
2018-08-13$7.24$7.24713,400
2018-08-10$6.99$6.99139,300
2018-08-09$6.97$6.97164,200
2018-08-08$6.95$6.95211,800
2018-08-07$6.84$6.84324,100
2018-08-06$6.95$6.95109,200
2018-08-03$6.93$6.93162,100
2018-08-02$7.04$7.04278,700
2018-08-01$6.96$6.96454,500
2018-07-31$6.79$6.79514,900
2018-07-30$7.14$7.14149,800
2018-07-27$7.10$7.10207,300
2018-07-26$7.28$7.28142,700
2018-07-25$7.30$7.30186,100
2018-07-24$7.30$7.30138,900
2018-07-23$7.22$7.22187,800
2018-07-20$7.13$7.13131,800
2018-07-19$7.14$7.14100,700
2018-07-18$7.17$7.17181,200
2018-07-17$7.29$7.29118,800
2018-07-16$7.30$7.30180,900
2018-07-13$7.36$7.36101,700
2018-07-12$7.42$7.42170,300
2018-07-11$7.31$7.31217,400
2018-07-10$7.42$7.42171,700
2018-07-09$7.39$7.39173,000
2018-07-06$7.38$7.38176,600
2018-07-05$7.31$7.31188,800
2018-07-03$7.18$7.18122,500
2018-07-02$7.25$7.25182,200
2018-06-29$7.12$7.12292,500
2018-06-28$7.04$7.04257,400
2018-06-27$7.00$7.00253,600
2018-06-26$7.02$7.02414,400
2018-06-25$6.52$6.52431,400
2018-06-22$6.60$6.60988,100
2018-06-21$6.56$6.56334,400
2018-06-20$6.64$6.64269,600
2018-06-19$6.54$6.54224,900
2018-06-18$6.53$6.53234,600
2018-06-15$6.60$6.60244,800
2018-06-14$6.73$6.73256,900
2018-06-13$6.65$6.65211,100
2018-06-12$6.66$6.66244,900
2018-06-11$6.33$6.33283,400
2018-06-08$6.13$6.13201,200
2018-06-07$6.16$6.16162,900
2018-06-06$6.21$6.21114,900
2018-06-05$6.19$6.19203,900
2018-06-04$6.17$6.17169,800
2018-06-01$6.13$6.13258,900
2018-05-31$6.06$6.06338,200
2018-05-30$5.98$5.98281,000
2018-05-29$5.80$5.80132,700
2018-05-25$5.81$5.81261,600
2018-05-24$5.78$5.78159,600
2018-05-23$5.77$5.77198,700
2018-05-22$5.51$5.51262,400
2018-05-21$5.51$5.51178,600
2018-05-18$5.42$5.42129,600
2018-05-17$5.48$5.48207,500
2018-05-16$5.50$5.50314,700
2018-05-15$5.55$5.55283,600
2018-05-14$5.69$5.69236,200
2018-05-11$5.70$5.70198,600
2018-05-10$5.77$5.77285,800
2018-05-09$5.86$5.86195,100
2018-05-08$5.82$5.82224,800
2018-05-07$5.84$5.84232,700
2018-05-04$5.89$5.89284,400
2018-05-03$5.73$5.73341,500
2018-05-02$5.78$5.78288,000
2018-05-01$5.77$5.77303,300
2018-04-30$5.82$5.82616,300
2018-04-27$5.75$5.75321,600
2018-04-26$5.69$5.69662,100
2018-04-25$5.43$5.43161,600
2018-04-24$5.46$5.46209,300
2018-04-23$5.30$5.30331,900
2018-04-20$5.35$5.35166,500
2018-04-19$5.35$5.35223,700
2018-04-18$5.36$5.36218,600
2018-04-17$5.38$5.38363,100
2018-04-16$5.35$5.35218,300
2018-04-13$5.27$5.27195,800
2018-04-12$5.30$5.30217,900
2018-04-11$5.21$5.21362,000
2018-04-10$5.11$5.11226,600
2018-04-09$5.00$5.00303,100
2018-04-06$5.03$5.03258,200
2018-04-05$5.14$5.14294,300
2018-04-04$5.01$5.01537,500
2018-04-03$5.05$5.05333,000
2018-04-02$5.02$5.02353,100
2018-03-29$5.10$5.10450,000
2018-03-28$5.08$5.08483,400
2018-03-27$5.19$5.19356,000
2018-03-26$5.25$5.25351,000
2018-03-23$5.19$5.19421,200
2018-03-22$5.27$5.27415,700
2018-03-21$5.35$5.35394,600
2018-03-20$5.23$5.23672,500
2018-03-19$5.25$5.251,079,700
2018-03-16$5.12$5.126,186,700
2018-03-15$5.12$5.121,114,700
2018-03-14$5.16$5.161,090,800
2018-03-13$5.28$5.281,192,200
2018-03-12$5.27$5.272,641,500
2018-03-09$5.81$5.81468,500
2018-03-08$5.81$5.81394,200
2018-03-07$5.84$5.84415,100
2018-03-06$5.70$5.70493,300
2018-03-05$5.68$5.68790,900
2018-03-02$5.86$5.86478,300
2018-03-01$5.97$5.97923,900
2018-02-28$6.48$6.48445,000
2018-02-27$6.60$6.60540,500
2018-02-26$6.84$6.84232,800
2018-02-23$6.67$6.67231,700
2018-02-22$6.73$6.73171,700
2018-02-21$6.89$6.89177,100
2018-02-20$7.04$7.04249,700
2018-02-16$7.08$7.08197,600
2018-02-15$7.04$7.04211,900
2018-02-14$7.01$7.01632,800
2018-02-13$6.83$6.83374,000
2018-02-12$6.64$6.64160,200
2018-02-09$6.65$6.65396,400
2018-02-08$6.60$6.60179,000
2018-02-07$6.88$6.88216,000
2018-02-06$6.93$6.93382,500
2018-02-05$6.86$6.86353,800
2018-02-02$6.94$6.94318,000
2018-02-01$7.00$7.00216,900
2018-01-31$6.98$6.98170,400
2018-01-30$7.01$7.01301,400
2018-01-29$6.90$6.90235,900
2018-01-26$6.83$6.83240,900
2018-01-25$6.78$6.78354,500
2018-01-24$6.83$6.83364,800
2018-01-23$6.86$6.86354,200
2018-01-22$6.94$6.94385,400
2018-01-19$6.82$6.82547,300
2018-01-18$6.79$6.79413,600
2018-01-17$7.14$7.14349,000
2018-01-16$7.14$7.14541,200
2018-01-12$7.40$7.40321,800
2018-01-11$7.25$7.25335,400
2018-01-10$7.37$7.37236,000
2018-01-09$7.58$7.58120,500
2018-01-08$7.78$7.78182,000
2018-01-05$7.83$7.83163,000
2018-01-04$7.70$7.70179,200
2018-01-03$7.75$7.75118,900
2018-01-02$7.74$7.74309,200