NASDAQ:RBBN | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$1.9934,166
2026-09-03$1.9637,330
2026-09-02$1.9720,309
2026-09-01$1.9739,525
2026-08-31$2.0259,435
2026-08-28$2.0152,738
2026-08-27$2.00$2.00417,400$2.0941,345
2026-08-26$2.03$2.03524,000$2.0547,135
2026-08-25$2.06$2.06441,900$2.0519,934
2026-08-24$2.04$2.04811,700$2.0174,963
2026-08-21$2.03$2.031,106,100$2.0177,017
2026-08-20$2.00$2.00932,900$2.01134,053
2026-08-19$2.03$2.031,062,300$2.06119,865
2026-08-18$2.04$2.04632,900$2.0640,820
2026-08-17$2.08$2.08321,000$2.1228,506
2026-08-14$2.11$2.11480,400$2.1437,142
2026-08-13$2.11$2.11672,100$2.0763,350
2026-08-12$2.08$2.08380,300$2.0228,205
2026-08-11$1.99$1.99699,400$2.0740,139
2026-08-10$2.05$2.05528,400$2.1457,276
2026-08-07$2.14$2.14637,700$2.1367,948
2026-08-06$2.10$2.10700,600$2.1148,936
2026-08-05$2.15$2.15740,900$2.1345,764
2026-08-04$2.17$2.17622,600$2.1775,780
2026-08-03$2.12$2.12585,000$2.1143,721
2026-07-31$2.14$2.14793,200$2.1849,840
2026-07-30$2.12$2.12769,300$2.2770,400
2026-07-29$2.19$2.191,799,300$2.27133,076
2026-07-28$2.05$2.05948,200$2.0556,728
2026-07-27$2.04$2.04690,000$2.0564,746
2026-07-24$2.01$2.01806,800$2.0341,876
2026-07-23$2.02$2.021,106,700$2.20114,293
2026-07-22$2.16$2.16630,900$2.2742,665
2026-07-21$2.27$2.27539,600$2.1830,744
2026-07-20$2.11$2.11587,600$2.2455,260
2026-07-17$2.20$2.20889,700
2026-07-16$2.15$2.15489,800
2026-07-15$2.19$2.19726,700
2026-07-14$2.34$2.342,606,900
2026-07-13$2.28$2.28388,100
2026-07-10$2.32$2.32481,600
2026-07-09$2.27$2.27593,300
2026-07-08$2.21$2.21880,100
2026-07-07$2.12$2.12743,600
2026-07-06$2.21$2.21556,900
2026-07-02$2.14$2.14710,100
2026-07-01$2.35$2.35614,200
2026-06-30$2.34$2.34613,500
2026-06-29$2.22$2.22608,200
2026-06-26$2.20$2.201,735,700
2026-06-25$2.25$2.25734,800
2026-06-24$2.31$2.31693,700
2026-06-23$2.40$2.40416,100
2026-06-22$2.49$2.49745,300
2026-06-18$2.56$2.561,160,800
2026-06-17$2.56$2.56943,300
2026-06-16$2.61$2.611,052,200
2026-06-15$2.72$2.72428,100
2026-06-12$2.69$2.69719,100
2026-06-11$2.70$2.70582,900
2026-06-10$2.62$2.62636,600
2026-06-09$2.66$2.66885,600
2026-06-08$2.88$2.88577,000
2026-06-05$2.83$2.83902,400
2026-06-04$3.07$3.07785,000
2026-06-03$3.12$3.12899,400
2026-06-02$3.34$3.341,733,800
2026-06-01$3.09$3.09712,500
2026-05-29$3.08$3.081,095,100
2026-05-28$3.08$3.083,498,000
2026-05-27$3.11$3.112,308,800
2026-05-26$2.83$2.831,676,800
2026-05-22$2.79$2.792,030,100
2026-05-21$2.65$2.65849,600
2026-05-20$2.61$2.61743,600
2026-05-19$2.66$2.66838,200
2026-05-18$2.64$2.64890,500
2026-05-15$2.57$2.571,000,500
2026-05-14$2.63$2.63716,900
2026-05-13$2.60$2.60530,500
2026-05-12$2.55$2.55663,700
2026-05-11$2.63$2.63870,000
2026-05-08$2.78$2.78673,500
2026-05-07$2.69$2.69541,300
2026-05-06$2.68$2.68521,600
2026-05-05$2.73$2.73503,200
2026-05-04$2.67$2.67649,100
2026-05-01$2.75$2.75863,900
2026-04-30$2.64$2.641,307,800
2026-04-29$2.38$2.382,087,800
2026-04-28$2.60$2.601,004,300
2026-04-27$2.66$2.66599,800
2026-04-24$2.78$2.78961,200
2026-04-23$2.71$2.71653,600
2026-04-22$2.75$2.751,935,600
2026-04-21$3.06$3.061,322,400
2026-04-20$2.87$2.87758,100
2026-04-17$2.81$2.81843,000
2026-04-16$2.71$2.711,283,700
2026-04-15$2.62$2.621,054,000