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 — 2008

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2008-12-31$7.90$7.90345,980
2008-12-30$7.10$7.10217,820
2008-12-29$6.95$6.95269,320
2008-12-26$6.75$6.7599,460
2008-12-24$6.80$6.8056,840
2008-12-23$6.85$6.85158,220
2008-12-22$7.15$7.15266,080
2008-12-19$7.65$7.65534,920
2008-12-18$7.90$7.90364,620
2008-12-17$7.60$7.60489,180
2008-12-16$7.75$7.75323,960
2008-12-15$7.20$7.20254,320
2008-12-12$7.85$7.85380,780
2008-12-11$7.75$7.75350,160
2008-12-10$9.10$9.10348,420
2008-12-09$8.80$8.80282,380
2008-12-08$9.65$9.65359,580
2008-12-05$8.45$8.45267,320
2008-12-04$7.60$7.60220,820
2008-12-03$7.85$7.85333,760
2008-12-02$7.40$7.40281,280
2008-12-01$7.00$7.00354,100
2008-11-28$7.75$7.75271,720
2008-11-26$7.40$7.40696,580
2008-11-25$7.65$7.65368,660
2008-11-24$7.40$7.40704,480
2008-11-21$7.30$7.30637,300
2008-11-20$6.55$6.55491,180
2008-11-19$6.00$6.00397,300
2008-11-18$6.95$6.95277,380
2008-11-17$7.00$7.00280,280
2008-11-14$7.00$7.00379,880
2008-11-13$8.00$8.00548,880
2008-11-12$7.45$7.45327,620
2008-11-11$8.35$8.35240,320
2008-11-10$8.45$8.45171,120
2008-11-07$8.70$8.70508,020
2008-11-06$8.95$8.95448,880
2008-11-05$10.10$10.10346,260
2008-11-04$11.70$11.70635,260
2008-11-03$11.15$11.15495,780
2008-10-31$11.05$11.05530,240
2008-10-30$11.20$11.20342,960
2008-10-29$10.75$10.75443,860
2008-10-28$10.70$10.70581,460
2008-10-27$9.60$9.60406,160
2008-10-24$10.75$10.75418,580
2008-10-23$11.05$11.05484,500
2008-10-22$10.80$10.80618,660
2008-10-21$11.20$11.20283,680
2008-10-20$11.45$11.45248,220
2008-10-17$10.85$10.85468,340
2008-10-16$10.60$10.601,002,060
2008-10-15$10.00$10.00352,500
2008-10-14$10.90$10.90606,760
2008-10-13$12.50$12.50627,760
2008-10-10$12.50$12.50865,120
2008-10-09$10.55$10.55806,180
2008-10-08$12.00$12.00769,840
2008-10-07$11.30$11.301,724,280
2008-10-06$12.15$12.15970,120
2008-10-03$11.20$11.20705,700
2008-10-02$12.85$12.85495,040
2008-10-01$13.45$13.45730,400
2008-09-30$14.40$14.40736,480
2008-09-29$13.60$13.60645,640
2008-09-26$14.95$14.95410,040
2008-09-25$14.80$14.80346,440
2008-09-24$14.70$14.70300,460
2008-09-23$15.10$15.10255,700
2008-09-22$15.25$15.25476,480
2008-09-19$16.10$16.101,253,460
2008-09-18$16.60$16.601,237,340
2008-09-17$14.80$14.80675,820
2008-09-16$15.25$15.25754,080
2008-09-15$14.45$14.45356,380
2008-09-12$15.25$15.25285,500
2008-09-11$15.35$15.35290,720
2008-09-10$15.45$15.45380,280
2008-09-09$15.20$15.20403,300
2008-09-08$15.55$15.55426,580
2008-09-05$16.00$16.00527,720
2008-09-04$15.50$15.50961,880
2008-09-03$16.70$16.70378,400
2008-09-02$16.85$16.85677,120
2008-08-29$16.90$16.90489,060
2008-08-28$16.90$16.90562,500
2008-08-27$15.85$15.85911,220
2008-08-26$15.90$15.90374,360
2008-08-25$15.90$15.90376,980
2008-08-22$15.75$15.75528,140
2008-08-21$15.30$15.30507,380
2008-08-20$15.35$15.35624,440
2008-08-19$15.00$15.00842,080
2008-08-18$15.65$15.65558,580
2008-08-15$16.45$16.45441,680
2008-08-14$16.85$16.85808,900
2008-08-13$16.90$16.90792,140
2008-08-12$17.45$17.452,292,200
2008-08-11$20.95$20.951,545,000
2008-08-08$21.05$21.05897,020
2008-08-07$19.60$19.60608,420
2008-08-06$19.45$19.451,113,420
2008-08-05$18.30$18.30754,760
2008-08-04$18.10$18.10460,540
2008-08-01$18.55$18.55772,060
2008-07-31$18.15$18.151,582,860
2008-07-30$18.40$18.40606,140
2008-07-29$19.10$19.10431,900
2008-07-28$18.65$18.65448,120
2008-07-25$18.10$18.10566,960
2008-07-24$17.80$17.80972,400
2008-07-23$17.15$17.151,728,060
2008-07-22$17.35$17.35967,200
2008-07-21$17.00$17.00766,300
2008-07-18$16.80$16.80552,580
2008-07-17$17.00$17.001,120,720
2008-07-16$17.00$17.00709,700
2008-07-15$16.35$16.351,152,420
2008-07-14$16.75$16.75939,300
2008-07-11$16.80$16.80723,300
2008-07-10$16.70$16.70913,380
2008-07-09$16.75$16.75675,940
2008-07-08$17.35$17.35765,820
2008-07-07$15.60$15.60661,160
2008-07-03$16.15$16.15864,320
2008-07-02$17.50$17.50739,520
2008-07-01$17.95$17.95902,260
2008-06-30$17.10$17.101,003,140
2008-06-27$17.60$17.601,767,740
2008-06-26$18.60$18.60764,320
2008-06-25$19.30$19.302,246,200
2008-06-24$17.90$17.902,514,180
2008-06-23$20.65$20.65955,080
2008-06-20$22.45$22.45959,520
2008-06-19$23.40$23.40734,940
2008-06-18$22.35$22.35818,580
2008-06-17$23.00$23.00635,660
2008-06-16$23.75$23.75735,700
2008-06-13$21.75$21.75427,300
2008-06-12$20.60$20.60590,000
2008-06-11$21.00$21.00329,320
2008-06-10$22.05$22.05611,300
2008-06-09$21.25$21.25641,620
2008-06-06$21.35$21.35759,140
2008-06-05$22.50$22.50827,940
2008-06-04$20.95$20.95605,680
2008-06-03$20.85$20.85566,400
2008-06-02$20.80$20.80869,620
2008-05-30$21.45$21.45606,800
2008-05-29$21.20$21.20324,360
2008-05-28$21.20$21.20713,940
2008-05-27$21.25$21.25531,220
2008-05-23$20.80$20.80516,560
2008-05-22$21.15$21.15414,280
2008-05-21$20.45$20.45944,380
2008-05-20$21.15$21.151,086,700
2008-05-19$21.80$21.80482,060
2008-05-16$22.30$22.30723,440
2008-05-15$22.40$22.40786,820
2008-05-14$22.30$22.30759,180
2008-05-13$21.90$21.90885,660
2008-05-12$22.65$22.65756,620
2008-05-09$21.40$21.402,409,180
2008-05-08$19.45$19.45990,300
2008-05-07$20.95$20.95628,600
2008-05-06$21.05$21.05487,480
2008-05-05$20.10$20.10386,260
2008-05-02$19.90$19.90382,540
2008-05-01$19.95$19.95666,900
2008-04-30$20.05$20.05606,640
2008-04-29$20.00$20.00434,740
2008-04-28$20.50$20.50413,100
2008-04-25$20.00$20.00508,640
2008-04-24$19.65$19.65655,880
2008-04-23$18.60$18.60375,280
2008-04-22$18.25$18.25756,420
2008-04-21$19.15$19.15258,460
2008-04-18$19.15$19.15493,040
2008-04-17$18.90$18.90663,420
2008-04-16$19.45$19.451,438,200
2008-04-15$18.70$18.70742,960
2008-04-14$18.70$18.70563,900
2008-04-11$18.60$18.60870,840
2008-04-10$19.45$19.45786,540
2008-04-09$19.30$19.30939,580
2008-04-08$18.50$18.50739,840
2008-04-07$17.85$17.85559,940
2008-04-04$17.10$17.10653,700
2008-04-03$17.25$17.25498,300
2008-04-02$17.50$17.50558,160
2008-04-01$17.60$17.60546,760
2008-03-31$17.20$17.20375,840
2008-03-28$16.65$16.65561,020
2008-03-27$17.15$17.15529,480
2008-03-26$17.10$17.10676,740
2008-03-25$17.40$17.40461,620
2008-03-24$17.00$17.00571,840
2008-03-20$16.35$16.351,236,580
2008-03-19$15.85$15.85854,700
2008-03-18$16.35$16.35710,280
2008-03-17$15.35$15.35671,600
2008-03-14$15.75$15.75782,580
2008-03-13$16.80$16.80899,780
2008-03-12$15.80$15.80764,100
2008-03-11$15.20$15.201,315,280
2008-03-10$15.20$15.20826,460
2008-03-07$15.45$15.451,390,540
2008-03-06$16.05$16.051,769,760
2008-03-05$15.25$15.251,176,340
2008-03-04$15.65$15.651,270,340
2008-03-03$15.05$15.052,451,640
2008-02-29$16.60$16.603,841,460
2008-02-28$19.30$19.30842,940
2008-02-27$19.80$19.801,331,220
2008-02-26$19.20$19.201,395,480
2008-02-25$18.10$18.10705,280
2008-02-22$17.60$17.60452,340
2008-02-21$18.05$18.05508,600
2008-02-20$18.55$18.55816,440
2008-02-19$18.65$18.65613,080
2008-02-15$18.80$18.80380,200
2008-02-14$19.15$19.15552,380
2008-02-13$19.60$19.60541,840
2008-02-12$18.50$18.50949,180
2008-02-11$18.60$18.60916,840
2008-02-08$18.50$18.50850,560
2008-02-07$18.75$18.751,602,600
2008-02-06$18.90$18.90929,880
2008-02-05$19.95$19.95493,640
2008-02-04$21.00$21.00627,580
2008-02-01$21.25$21.25878,560
2008-01-31$20.45$20.45737,180
2008-01-30$20.55$20.55603,660
2008-01-29$21.15$21.15657,780
2008-01-28$20.85$20.85471,700
2008-01-25$20.85$20.851,217,300
2008-01-24$19.95$19.951,130,120
2008-01-23$19.35$19.351,279,840
2008-01-22$18.25$18.251,436,380
2008-01-18$19.10$19.101,162,160
2008-01-17$19.75$19.75927,860
2008-01-16$20.60$20.601,641,660
2008-01-15$20.80$20.80823,580
2008-01-14$22.00$22.00943,080
2008-01-11$22.20$22.201,019,320
2008-01-10$23.05$23.05877,320
2008-01-09$23.00$23.001,573,860
2008-01-08$23.25$23.251,606,440
2008-01-07$23.40$23.401,861,500
2008-01-04$25.30$25.301,364,060
2008-01-03$26.40$26.401,362,160
2008-01-02$28.10$28.101,484,360