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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$6.56$6.56246,900——
2020-12-30$6.47$6.47252,800——
2020-12-29$6.48$6.48238,400——
2020-12-28$6.55$6.55275,400——
2020-12-24$6.61$6.61146,900——
2020-12-23$6.61$6.61387,800——
2020-12-22$6.75$6.75517,500——
2020-12-21$6.51$6.51435,600——
2020-12-18$6.32$6.321,051,900——
2020-12-17$6.31$6.31535,700——
2020-12-16$6.29$6.29454,600——
2020-12-15$6.24$6.24447,800——
2020-12-14$6.20$6.20600,600——
2020-12-11$6.17$6.171,548,600——
2020-12-10$6.96$6.96411,100——
2020-12-09$6.96$6.96839,600——
2020-12-08$7.36$7.36466,400——
2020-12-07$7.28$7.28614,800——
2020-12-04$7.19$7.19889,600——
2020-12-03$6.76$6.76450,400——
2020-12-02$6.71$6.71678,900——
2020-12-01$6.84$6.843,643,500——
2020-11-30$6.86$6.861,426,000——
2020-11-27$6.53$6.53895,500——
2020-11-25$6.24$6.241,181,100——
2020-11-24$6.32$6.321,531,200——
2020-11-23$6.05$6.05804,100——
2020-11-20$5.88$5.88553,800——
2020-11-19$5.79$5.79536,300——
2020-11-18$5.76$5.761,217,900——
2020-11-17$5.45$5.451,343,600——
2020-11-16$4.90$4.90389,400——
2020-11-13$4.67$4.67175,000——
2020-11-12$4.56$4.56267,900——
2020-11-11$4.65$4.65197,900——
2020-11-10$4.61$4.61398,100——
2020-11-09$4.43$4.43479,400——
2020-11-06$4.35$4.35152,300——
2020-11-05$4.41$4.41227,500——
2020-11-04$4.27$4.27251,900——
2020-11-03$4.25$4.25307,000——
2020-11-02$4.29$4.29324,400——
2020-10-30$4.31$4.31863,200——
2020-10-29$3.86$3.86177,700——
2020-10-28$3.77$3.77306,300——
2020-10-27$3.82$3.82142,100——
2020-10-26$3.94$3.94248,100——
2020-10-23$4.02$4.02108,900——
2020-10-22$4.02$4.02207,500——
2020-10-21$4.09$4.09124,600——
2020-10-20$4.00$4.00195,700——
2020-10-19$4.06$4.0698,100——
2020-10-16$4.02$4.02174,200——
2020-10-15$3.97$3.97305,200——
2020-10-14$3.92$3.92144,600——
2020-10-13$4.02$4.02184,800——
2020-10-12$4.06$4.06206,200——
2020-10-09$3.98$3.98190,600——
2020-10-08$4.00$4.00240,700——
2020-10-07$3.95$3.95251,700——
2020-10-06$3.86$3.86214,900——
2020-10-05$4.06$4.06344,900——
2020-10-02$3.84$3.84272,200——
2020-10-01$3.94$3.94253,400——
2020-09-30$3.87$3.87243,300——
2020-09-29$3.80$3.80192,800——
2020-09-28$3.80$3.80217,000——
2020-09-25$3.72$3.72284,600——
2020-09-24$3.71$3.71278,800——
2020-09-23$3.86$3.86326,400——
2020-09-22$3.97$3.97273,300——
2020-09-21$4.01$4.01397,500——
2020-09-18$4.20$4.201,316,700——
2020-09-17$4.41$4.41256,100——
2020-09-16$4.48$4.48502,100——
2020-09-15$4.24$4.24446,700——
2020-09-14$4.25$4.25386,500——
2020-09-11$4.00$4.00232,700——
2020-09-10$4.01$4.01290,500——
2020-09-09$4.12$4.12333,900——
2020-09-08$3.99$3.99394,900——
2020-09-04$3.93$3.93371,300——
2020-09-03$4.18$4.18322,300——
2020-09-02$4.38$4.38312,900——
2020-09-01$4.23$4.23252,200——
2020-08-31$4.28$4.28366,300——
2020-08-28$4.30$4.30241,800——
2020-08-27$4.07$4.07171,100——
2020-08-26$4.15$4.15179,700——
2020-08-25$4.24$4.24245,600——
2020-08-24$4.36$4.36259,100——
2020-08-21$4.43$4.43249,700——
2020-08-20$4.60$4.60137,600——
2020-08-19$4.57$4.57188,700——
2020-08-18$4.51$4.51248,000——
2020-08-17$4.53$4.53381,900——
2020-08-14$4.78$4.78259,300——
2020-08-13$4.77$4.77404,500——
2020-08-12$4.53$4.53263,200——
2020-08-11$4.45$4.45156,800——
2020-08-10$4.47$4.47216,600——
2020-08-07$4.58$4.58467,200——
2020-08-06$4.65$4.651,337,200——
2020-08-05$4.75$4.75327,600——
2020-08-04$4.61$4.61312,400——
2020-08-03$4.70$4.70484,300——
2020-07-31$4.40$4.40216,800——
2020-07-30$4.41$4.41220,100——
2020-07-29$4.26$4.26160,000——
2020-07-28$4.13$4.13105,800——
2020-07-27$4.28$4.28107,300——
2020-07-24$4.10$4.10126,600——
2020-07-23$4.22$4.22129,500——
2020-07-22$4.26$4.26134,800——
2020-07-21$4.19$4.19140,200——
2020-07-20$4.14$4.14217,100——
2020-07-17$3.94$3.94184,700——
2020-07-16$3.92$3.92187,100——
2020-07-15$3.96$3.96215,100——
2020-07-14$3.89$3.89213,600——
2020-07-13$3.84$3.84282,200——
2020-07-10$4.13$4.13223,700——
2020-07-09$4.10$4.10266,000——
2020-07-08$4.15$4.15295,400——
2020-07-07$4.10$4.10291,600——
2020-07-06$4.16$4.16411,000——
2020-07-02$3.98$3.98314,800——
2020-07-01$3.80$3.80219,000——
2020-06-30$3.93$3.93322,000——
2020-06-29$3.90$3.90272,400——
2020-06-26$3.74$3.741,262,800——
2020-06-25$4.00$4.00433,900——
2020-06-24$4.05$4.05500,600——
2020-06-23$4.38$4.38471,700——
2020-06-22$4.43$4.43350,000——
2020-06-19$4.37$4.371,779,600——
2020-06-18$4.19$4.19705,000——
2020-06-17$4.03$4.03306,800——
2020-06-16$4.25$4.25393,900——
2020-06-15$4.15$4.15365,200——
2020-06-12$3.87$3.87311,600——
2020-06-11$3.71$3.71375,100——
2020-06-10$4.06$4.06374,500——
2020-06-09$4.56$4.56300,200——
2020-06-08$4.53$4.53411,500——
2020-06-05$4.53$4.53432,100——
2020-06-04$4.41$4.41256,800——
2020-06-03$4.46$4.46431,600——
2020-06-02$4.29$4.29334,400——
2020-06-01$4.33$4.33435,000——
2020-05-29$4.40$4.40654,400——
2020-05-28$4.11$4.11386,600——
2020-05-27$4.22$4.22417,000——
2020-05-26$4.06$4.06315,000——
2020-05-22$3.88$3.88293,900——
2020-05-21$3.84$3.84389,500——
2020-05-20$4.11$4.11505,300——
2020-05-19$3.90$3.90599,400——
2020-05-18$3.55$3.55445,800——
2020-05-15$3.28$3.28319,600——
2020-05-14$3.36$3.36494,100——
2020-05-13$3.32$3.32481,500——
2020-05-12$3.42$3.42526,700——
2020-05-11$3.45$3.45540,900——
2020-05-08$3.69$3.69363,200——
2020-05-07$3.60$3.60914,300——
2020-05-06$3.13$3.13292,300——
2020-05-05$3.26$3.26337,900——
2020-05-04$3.36$3.36208,200——
2020-05-01$3.34$3.34286,500——
2020-04-30$3.65$3.65480,500——
2020-04-29$3.50$3.50922,100——
2020-04-28$3.38$3.38507,700——
2020-04-27$3.18$3.18322,000——
2020-04-24$2.94$2.94262,500——
2020-04-23$2.90$2.90302,000——
2020-04-22$2.86$2.86257,000——
2020-04-21$2.77$2.77460,300——
2020-04-20$2.94$2.94265,200——
2020-04-17$3.13$3.13551,300——
2020-04-16$2.83$2.83443,000——
2020-04-15$2.87$2.87307,000——
2020-04-14$3.02$3.02338,400——
2020-04-13$3.00$3.00398,400——
2020-04-09$2.96$2.96485,700——
2020-04-08$3.05$3.05378,100——
2020-04-07$2.91$2.91568,500——
2020-04-06$3.08$3.08373,500——
2020-04-03$2.83$2.83437,500——
2020-04-02$2.78$2.78325,000——
2020-04-01$2.78$2.78387,000——
2020-03-31$3.03$3.03659,000——
2020-03-30$3.15$3.15572,900——
2020-03-27$3.29$3.292,013,000——
2020-03-26$3.32$3.321,015,000——
2020-03-25$2.77$2.77431,100——
2020-03-24$2.71$2.71534,700——
2020-03-23$2.47$2.47728,900——
2020-03-20$2.15$2.15541,500——
2020-03-19$2.12$2.12624,000——
2020-03-18$2.03$2.03486,200——
2020-03-17$2.20$2.20384,900——
2020-03-16$2.16$2.16784,800——
2020-03-13$2.42$2.42377,000——
2020-03-12$2.17$2.17547,700——
2020-03-11$2.58$2.58277,800——
2020-03-10$2.90$2.90271,900——
2020-03-09$2.85$2.85305,800——
2020-03-06$3.14$3.14265,200——
2020-03-05$3.15$3.15461,000——
2020-03-04$3.33$3.33227,900——
2020-03-03$3.34$3.34347,200——
2020-03-02$3.42$3.42310,800——
2020-02-28$3.23$3.23375,500——
2020-02-27$3.14$3.14468,900——
2020-02-26$3.36$3.36409,600——
2020-02-25$3.50$3.50619,500——
2020-02-24$3.62$3.62670,100——
2020-02-21$3.50$3.50579,500——
2020-02-20$3.23$3.23603,900——
2020-02-19$3.27$3.27507,200——
2020-02-18$3.11$3.11260,000——
2020-02-14$3.10$3.10436,100——
2020-02-13$3.14$3.14174,000——
2020-02-12$3.11$3.11228,300——
2020-02-11$3.06$3.06207,800——
2020-02-10$2.96$2.96201,100——
2020-02-07$2.92$2.92231,400——
2020-02-06$2.98$2.98181,000——
2020-02-05$3.02$3.02268,200——
2020-02-04$2.89$2.89318,000——
2020-02-03$2.84$2.84343,400——
2020-01-31$2.82$2.82257,500——
2020-01-30$2.78$2.78274,200——
2020-01-29$2.88$2.88387,900——
2020-01-28$3.11$3.11277,600——
2020-01-27$3.02$3.02193,700——
2020-01-24$3.07$3.07427,300——
2020-01-23$3.09$3.09398,200——
2020-01-22$3.05$3.05229,400——
2020-01-21$3.13$3.13228,600——
2020-01-17$3.21$3.21361,700——
2020-01-16$3.37$3.37349,300——
2020-01-15$3.38$3.38278,500——
2020-01-14$3.31$3.31341,400——
2020-01-13$3.22$3.22322,500——
2020-01-10$3.24$3.24246,100——
2020-01-09$3.25$3.25300,500——
2020-01-08$3.19$3.19272,300——
2020-01-07$3.19$3.19212,500——
2020-01-06$3.19$3.19322,500——
2020-01-03$3.15$3.15339,800——
2020-01-02$3.04$3.04449,900——