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 — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$3.10$3.10565,100——
2019-12-30$3.08$3.08489,700——
2019-12-27$3.10$3.10285,600——
2019-12-26$3.09$3.09416,900——
2019-12-24$3.18$3.18569,000——
2019-12-23$3.08$3.08806,300——
2019-12-20$2.88$2.881,491,500——
2019-12-19$2.73$2.73848,700——
2019-12-18$2.85$2.85611,300——
2019-12-17$2.87$2.87805,800——
2019-12-16$2.80$2.80698,500——
2019-12-13$2.80$2.80562,500——
2019-12-12$2.89$2.89359,900——
2019-12-11$2.79$2.79366,300——
2019-12-10$2.72$2.72385,300——
2019-12-09$2.77$2.77305,400——
2019-12-06$2.82$2.82437,500——
2019-12-05$2.77$2.77574,900——
2019-12-04$2.82$2.82538,200——
2019-12-03$2.93$2.93532,900——
2019-12-02$2.93$2.93430,400——
2019-11-29$2.93$2.93359,800——
2019-11-27$2.93$2.93931,700——
2019-11-26$2.87$2.87882,600——
2019-11-25$2.89$2.89711,900——
2019-11-22$2.81$2.81627,000——
2019-11-21$2.62$2.62901,900——
2019-11-20$2.61$2.61542,800——
2019-11-19$2.65$2.65624,300——
2019-11-18$2.74$2.74827,200——
2019-11-15$2.75$2.751,314,500——
2019-11-14$3.00$3.002,342,800——
2019-11-13$4.05$4.05229,200——
2019-11-12$4.10$4.10357,800——
2019-11-11$4.07$4.07625,900——
2019-11-08$4.17$4.17452,300——
2019-11-07$4.20$4.20667,300——
2019-11-06$4.25$4.25676,600——
2019-11-05$4.34$4.34660,200——
2019-11-04$4.34$4.34414,800——
2019-11-01$4.50$4.50758,300——
2019-10-31$4.29$4.291,212,100——
2019-10-30$5.48$5.48139,600——
2019-10-29$5.38$5.38275,100——
2019-10-28$5.44$5.44225,300——
2019-10-25$5.47$5.47136,200——
2019-10-24$5.41$5.41149,000——
2019-10-23$5.42$5.42125,500——
2019-10-22$5.45$5.4595,100——
2019-10-21$5.62$5.62137,500——
2019-10-18$5.56$5.56192,100——
2019-10-17$5.61$5.61159,200——
2019-10-16$5.55$5.5572,900——
2019-10-15$5.53$5.53151,200——
2019-10-14$5.52$5.5294,800——
2019-10-11$5.43$5.43256,000——
2019-10-10$5.33$5.33207,600——
2019-10-09$5.29$5.29147,700——
2019-10-08$5.30$5.30122,100——
2019-10-07$5.40$5.40127,400——
2019-10-04$5.53$5.53120,000——
2019-10-03$5.57$5.57128,300——
2019-10-02$5.56$5.56236,400——
2019-10-01$5.74$5.74435,500——
2019-09-30$5.84$5.84252,300——
2019-09-27$5.79$5.79229,100——
2019-09-26$5.74$5.74143,600——
2019-09-25$5.87$5.87187,900——
2019-09-24$5.73$5.73268,000——
2019-09-23$5.67$5.67184,300——
2019-09-20$5.78$5.78467,900——
2019-09-19$5.82$5.82337,200——
2019-09-18$5.84$5.84484,200——
2019-09-17$5.75$5.75168,400——
2019-09-16$5.74$5.74187,600——
2019-09-13$5.63$5.63191,200——
2019-09-12$5.62$5.62252,500——
2019-09-11$5.60$5.60307,800——
2019-09-10$5.32$5.32207,300——
2019-09-09$5.31$5.31186,000——
2019-09-06$5.31$5.31158,000——
2019-09-05$5.27$5.27186,900——
2019-09-04$5.14$5.14154,700——
2019-09-03$5.07$5.07225,200——
2019-08-30$5.17$5.17170,600——
2019-08-29$5.23$5.23153,800——
2019-08-28$5.19$5.19116,400——
2019-08-27$5.14$5.14314,800——
2019-08-26$5.13$5.13127,400——
2019-08-23$5.12$5.12194,800——
2019-08-22$5.37$5.37173,400——
2019-08-21$5.51$5.51243,100——
2019-08-20$5.38$5.38204,500——
2019-08-19$5.40$5.40258,600——
2019-08-16$5.25$5.25157,400——
2019-08-15$5.22$5.22270,000——
2019-08-14$5.26$5.26203,600——
2019-08-13$5.31$5.31235,200——
2019-08-12$5.34$5.34328,900——
2019-08-09$5.39$5.39347,500——
2019-08-08$5.41$5.41463,800——
2019-08-07$5.36$5.36363,600——
2019-08-06$5.38$5.38291,900——
2019-08-05$5.22$5.22351,200——
2019-08-02$5.36$5.36973,400——
2019-08-01$5.10$5.10771,000——
2019-07-31$4.92$4.92313,700——
2019-07-30$4.91$4.91369,600——
2019-07-29$4.88$4.88409,000——
2019-07-26$4.91$4.91169,400——
2019-07-25$4.89$4.89206,500——
2019-07-24$4.91$4.91199,900——
2019-07-23$4.87$4.87153,300——
2019-07-22$4.90$4.90419,500——
2019-07-19$4.91$4.91136,400——
2019-07-18$4.88$4.88129,100——
2019-07-17$4.90$4.90178,800——
2019-07-16$4.92$4.92308,000——
2019-07-15$4.99$4.99104,500——
2019-07-12$5.02$5.02247,700——
2019-07-11$4.91$4.91182,100——
2019-07-10$4.97$4.97178,500——
2019-07-09$4.86$4.86173,400——
2019-07-08$4.86$4.86191,500——
2019-07-05$4.90$4.90139,400——
2019-07-03$4.91$4.91158,800——
2019-07-02$4.92$4.92203,900——
2019-07-01$4.97$4.97229,600——
2019-06-28$4.89$4.89934,200——
2019-06-27$4.89$4.89139,500——
2019-06-26$4.82$4.82251,800——
2019-06-25$4.69$4.69258,100——
2019-06-24$4.75$4.75220,500——
2019-06-21$4.66$4.661,377,700——
2019-06-20$4.77$4.77211,500——
2019-06-19$4.69$4.69204,500——
2019-06-18$4.76$4.76157,300——
2019-06-17$4.62$4.62232,000——
2019-06-14$4.69$4.69260,800——
2019-06-13$4.76$4.76331,800——
2019-06-12$4.63$4.63329,100——
2019-06-11$4.55$4.55250,100——
2019-06-10$4.39$4.39153,200——
2019-06-07$4.32$4.32125,800——
2019-06-06$4.30$4.30446,800——
2019-06-05$4.37$4.37179,100——
2019-06-04$4.45$4.45197,200——
2019-06-03$4.31$4.31293,000——
2019-05-31$4.27$4.27385,200——
2019-05-30$4.41$4.41258,400——
2019-05-29$4.45$4.45461,600——
2019-05-28$4.55$4.55139,500——
2019-05-24$4.62$4.62395,100——
2019-05-23$4.63$4.63270,700——
2019-05-22$4.79$4.79239,500——
2019-05-21$4.96$4.96294,500——
2019-05-20$4.88$4.88189,100——
2019-05-17$4.89$4.89273,700——
2019-05-16$5.18$5.18878,400——
2019-05-15$5.15$5.15589,800——
2019-05-14$4.92$4.92987,100——
2019-05-13$4.74$4.74272,500——
2019-05-10$4.83$4.83436,000——
2019-05-09$4.73$4.73423,400——
2019-05-08$4.71$4.71745,100——
2019-05-07$4.74$4.74434,400——
2019-05-06$4.73$4.73495,000——
2019-05-03$4.74$4.741,022,400——
2019-05-02$5.32$5.32390,900——
2019-05-01$5.36$5.36145,600——
2019-04-30$5.36$5.36279,100——
2019-04-29$5.40$5.40124,700——
2019-04-26$5.40$5.40361,200——
2019-04-25$5.29$5.29126,600——
2019-04-24$5.34$5.34119,100——
2019-04-23$5.34$5.34317,100——
2019-04-22$5.24$5.24372,900——
2019-04-18$5.22$5.22280,500——
2019-04-17$5.17$5.17174,500——
2019-04-16$5.12$5.12160,700——
2019-04-15$5.16$5.16231,100——
2019-04-12$5.11$5.11250,100——
2019-04-11$5.18$5.18197,500——
2019-04-10$5.20$5.20290,100——
2019-04-09$5.13$5.13388,700——
2019-04-08$5.18$5.18161,300——
2019-04-05$5.19$5.19365,700——
2019-04-04$5.20$5.20350,300——
2019-04-03$5.17$5.17443,200——
2019-04-02$5.16$5.16396,400——
2019-04-01$5.18$5.18413,900——
2019-03-29$5.15$5.15600,400——
2019-03-28$5.11$5.11232,100——
2019-03-27$5.07$5.07291,300——
2019-03-26$5.21$5.21237,800——
2019-03-25$5.08$5.08219,400——
2019-03-22$5.02$5.02267,800——
2019-03-21$5.23$5.23302,000——
2019-03-20$5.17$5.17229,700——
2019-03-19$5.24$5.24220,700——
2019-03-18$5.26$5.26166,900——
2019-03-15$5.22$5.22510,300——
2019-03-14$5.13$5.13156,000——
2019-03-13$5.15$5.15318,200——
2019-03-12$5.09$5.09280,400——
2019-03-11$5.11$5.11706,000——
2019-03-08$4.97$4.97260,600——
2019-03-07$5.00$5.00220,500——
2019-03-06$5.09$5.09224,100——
2019-03-05$5.18$5.18145,500——
2019-03-04$5.19$5.19346,300——
2019-03-01$5.05$5.05479,700——
2019-02-28$5.15$5.15449,000——
2019-02-27$5.33$5.33267,800——
2019-02-26$5.32$5.32822,500——
2019-02-25$5.26$5.261,034,400——
2019-02-22$5.56$5.56431,200——
2019-02-21$5.36$5.36784,400——
2019-02-20$6.07$6.07354,900——
2019-02-19$6.15$6.15880,600——
2019-02-15$5.82$5.82365,200——
2019-02-14$5.67$5.67380,900——
2019-02-13$5.57$5.57337,800——
2019-02-12$5.44$5.44178,900——
2019-02-11$5.43$5.43139,700——
2019-02-08$5.41$5.4191,800——
2019-02-07$5.37$5.37137,400——
2019-02-06$5.49$5.49188,200——
2019-02-05$5.49$5.49159,400——
2019-02-04$5.61$5.61491,900——
2019-02-01$5.60$5.60282,500——
2019-01-31$5.58$5.58380,600——
2019-01-30$5.54$5.54254,400——
2019-01-29$5.55$5.55413,400——
2019-01-28$5.48$5.48252,600——
2019-01-25$5.57$5.57219,500——
2019-01-24$5.55$5.55246,700——
2019-01-23$5.52$5.52230,700——
2019-01-22$5.53$5.53217,800——
2019-01-18$5.67$5.67221,400——
2019-01-17$5.65$5.65168,300——
2019-01-16$5.62$5.62249,200——
2019-01-15$5.69$5.69358,100——
2019-01-14$5.34$5.34236,500——
2019-01-11$5.26$5.26118,200——
2019-01-10$5.23$5.23207,400——
2019-01-09$5.31$5.31116,800——
2019-01-08$5.36$5.36228,600——
2019-01-07$5.20$5.20133,100——
2019-01-04$5.08$5.08165,700——
2019-01-03$4.95$4.95140,700——
2019-01-02$5.17$5.17287,000——