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.

View year

Historical Stock Price — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2011-12-30$12.00$12.00340,860
2011-12-29$12.00$12.00156,260
2011-12-28$11.90$11.90186,280
2011-12-27$12.25$12.25116,320
2011-12-23$12.25$12.2572,140
2011-12-22$12.25$12.25123,540
2011-12-21$11.85$11.85362,260
2011-12-20$12.15$12.15509,800
2011-12-19$11.75$11.75258,260
2011-12-16$12.25$12.25412,120
2011-12-15$12.00$12.00214,040
2011-12-14$11.65$11.65572,360
2011-12-13$12.15$12.15244,640
2011-12-12$12.35$12.35329,360
2011-12-09$13.00$13.00233,900
2011-12-08$12.55$12.55271,320
2011-12-07$13.20$13.20192,240
2011-12-06$13.40$13.40216,720
2011-12-05$13.30$13.30488,980
2011-12-02$12.65$12.651,231,580
2011-12-01$12.80$12.80410,960
2011-11-30$13.05$13.051,044,300
2011-11-29$12.35$12.35882,240
2011-11-28$11.75$11.75374,980
2011-11-25$11.10$11.10211,360
2011-11-23$11.00$11.00551,380
2011-11-22$11.70$11.70588,420
2011-11-21$12.55$12.55161,940
2011-11-18$12.95$12.95249,740
2011-11-17$13.15$13.15413,840
2011-11-16$13.15$13.15405,200
2011-11-15$13.05$13.05178,940
2011-11-14$13.00$13.00248,300
2011-11-11$13.10$13.10253,200
2011-11-10$12.70$12.70262,700
2011-11-09$12.65$12.65308,760
2011-11-08$13.50$13.50251,020
2011-11-07$13.25$13.25209,200
2011-11-04$13.50$13.50220,800
2011-11-03$13.65$13.65391,860
2011-11-02$13.15$13.15262,160
2011-11-01$13.00$13.00476,760
2011-10-31$13.25$13.25496,300
2011-10-28$13.20$13.201,365,060
2011-10-27$11.65$11.65731,920
2011-10-26$11.00$11.00286,080
2011-10-25$11.10$11.10162,880
2011-10-24$11.35$11.35293,120
2011-10-21$11.20$11.20383,720
2011-10-20$11.35$11.35180,460
2011-10-19$11.00$11.00458,640
2011-10-18$12.00$12.00300,220
2011-10-17$11.40$11.40352,560
2011-10-14$11.90$11.90266,440
2011-10-13$11.45$11.45201,140
2011-10-12$11.30$11.30633,180
2011-10-11$11.55$11.55257,720
2011-10-10$11.15$11.15247,480
2011-10-07$10.60$10.60325,500
2011-10-06$11.05$11.05296,820
2011-10-05$10.95$10.95355,880
2011-10-04$11.05$11.05583,120
2011-10-03$10.25$10.25515,960
2011-09-30$10.80$10.80464,140
2011-09-29$11.00$11.00356,580
2011-09-28$10.65$10.65727,260
2011-09-27$11.20$11.20665,940
2011-09-26$10.25$10.25779,980
2011-09-23$10.50$10.501,559,300
2011-09-22$10.20$10.201,095,860
2011-09-21$11.00$11.00297,700
2011-09-20$11.90$11.90287,040
2011-09-19$11.90$11.90292,500
2011-09-16$12.20$12.20496,160
2011-09-15$11.90$11.90376,020
2011-09-14$11.90$11.90823,660
2011-09-13$11.40$11.40589,720
2011-09-12$11.25$11.25306,280
2011-09-09$11.30$11.30352,360
2011-09-08$11.95$11.95389,200
2011-09-07$11.95$11.95260,420
2011-09-06$11.20$11.20295,120
2011-09-02$11.35$11.35314,420
2011-09-01$11.95$11.95361,020
2011-08-31$12.95$12.95332,160
2011-08-30$12.65$12.65280,640
2011-08-29$12.30$12.30469,900
2011-08-26$12.00$12.00299,600
2011-08-25$11.55$11.55315,920
2011-08-24$12.15$12.15259,140
2011-08-23$12.30$12.30426,960
2011-08-22$11.50$11.50292,860
2011-08-19$11.45$11.45334,160
2011-08-18$11.40$11.40368,920
2011-08-17$12.25$12.25278,760
2011-08-16$12.40$12.40240,380
2011-08-15$12.70$12.70312,460
2011-08-12$12.15$12.15415,240
2011-08-11$12.50$12.50613,260
2011-08-10$11.20$11.20566,000
2011-08-09$12.20$12.20616,620
2011-08-08$11.75$11.751,007,060
2011-08-05$13.60$13.60835,700
2011-08-04$13.45$13.45832,540
2011-08-03$13.75$13.75841,240
2011-08-02$13.70$13.70940,820
2011-08-01$14.50$14.50757,940
2011-07-29$14.80$14.80997,200
2011-07-28$14.90$14.90500,400
2011-07-27$15.05$15.05645,420
2011-07-26$16.10$16.10224,320
2011-07-25$16.10$16.10283,320
2011-07-22$16.30$16.30430,800
2011-07-21$15.75$15.75634,420
2011-07-20$15.80$15.80559,780
2011-07-19$15.25$15.25397,360
2011-07-18$14.90$14.90482,380
2011-07-15$15.40$15.40432,520
2011-07-14$15.00$15.00838,440
2011-07-13$15.95$15.95480,280
2011-07-12$16.25$16.25350,660
2011-07-11$16.30$16.30279,220
2011-07-08$16.90$16.90384,260
2011-07-07$16.90$16.90532,580
2011-07-06$16.40$16.40552,480
2011-07-05$16.05$16.05365,960
2011-07-01$16.20$16.20491,940
2011-06-30$16.20$16.20350,660
2011-06-29$16.25$16.25401,680
2011-06-28$16.50$16.50635,060
2011-06-27$15.85$15.85392,920
2011-06-24$15.85$15.851,364,400
2011-06-23$16.05$16.05484,260
2011-06-22$15.30$15.30349,900
2011-06-21$15.10$15.10377,020
2011-06-20$14.70$14.70459,800
2011-06-17$14.40$14.40698,520
2011-06-16$14.60$14.60735,220
2011-06-15$14.75$14.75657,680
2011-06-14$15.00$15.00534,380
2011-06-13$14.95$14.95393,420
2011-06-10$14.95$14.95748,680
2011-06-09$15.10$15.10571,200
2011-06-08$14.55$14.55621,440
2011-06-07$14.55$14.55382,440
2011-06-06$14.80$14.80404,600
2011-06-03$15.20$15.20686,460
2011-06-02$15.40$15.40294,640
2011-06-01$15.50$15.50861,360
2011-05-31$16.20$16.20599,680
2011-05-27$16.15$16.15508,100
2011-05-26$16.30$16.30963,560
2011-05-25$15.90$15.901,126,080
2011-05-24$15.20$15.20807,500
2011-05-23$14.75$14.75660,000
2011-05-20$15.20$15.201,021,040
2011-05-19$14.15$14.15396,700
2011-05-18$14.45$14.45451,140
2011-05-17$13.95$13.95682,000
2011-05-16$14.05$14.05847,140
2011-05-13$14.40$14.40741,320
2011-05-12$14.25$14.251,780,000
2011-05-11$14.55$14.55600,000
2011-05-10$14.90$14.90567,540
2011-05-09$14.70$14.70683,180
2011-05-06$14.70$14.701,329,400
2011-05-05$14.90$14.90880,000
2011-05-04$14.95$14.952,764,480
2011-05-03$18.35$18.35861,040
2011-05-02$18.85$18.85800,600
2011-04-29$19.70$19.70800,000
2011-04-28$19.55$19.55720,000
2011-04-27$19.75$19.751,220,720
2011-04-26$18.20$18.20460,000
2011-04-25$18.45$18.45332,660
2011-04-21$18.00$18.00356,800
2011-04-20$17.70$17.70453,020
2011-04-19$17.30$17.30199,140
2011-04-18$17.20$17.20297,780
2011-04-15$17.80$17.80516,300
2011-04-14$17.60$17.60362,800
2011-04-13$18.05$18.05663,420
2011-04-12$17.40$17.40472,780
2011-04-11$17.60$17.60552,400
2011-04-08$17.80$17.80410,420
2011-04-07$18.20$18.20466,800
2011-04-06$18.80$18.80332,580
2011-04-05$18.65$18.65400,040
2011-04-04$18.60$18.60260,180
2011-04-01$18.60$18.60301,920
2011-03-31$18.80$18.80391,220
2011-03-30$19.20$19.20449,880
2011-03-29$19.45$19.45783,880
2011-03-28$18.85$18.85654,680
2011-03-25$18.70$18.70623,940
2011-03-24$18.75$18.75764,280
2011-03-23$18.25$18.25782,560
2011-03-22$18.60$18.601,328,060
2011-03-21$17.20$17.20577,660
2011-03-18$17.20$17.20780,160
2011-03-17$17.05$17.05598,740
2011-03-16$17.20$17.20764,740
2011-03-15$17.65$17.65752,760
2011-03-14$18.00$18.00509,920
2011-03-11$18.45$18.45727,600
2011-03-10$17.85$17.851,203,620
2011-03-09$19.45$19.45482,540
2011-03-08$20.20$20.20923,180
2011-03-07$19.45$19.45727,580
2011-03-04$20.10$20.10817,240
2011-03-03$19.95$19.951,278,040
2011-03-02$19.55$19.551,449,620
2011-03-01$20.20$20.206,900,620
2011-02-28$15.15$15.151,741,600
2011-02-25$15.30$15.301,072,460
2011-02-24$15.40$15.40408,800
2011-02-23$15.25$15.25600,100
2011-02-22$15.80$15.80404,260
2011-02-18$16.50$16.50474,400
2011-02-17$16.50$16.50373,220
2011-02-16$16.55$16.55508,400
2011-02-15$16.25$16.25662,620
2011-02-14$15.75$15.75625,540
2011-02-11$15.70$15.70615,720
2011-02-10$14.95$14.95182,360
2011-02-09$15.00$15.00532,140
2011-02-08$15.15$15.15402,340
2011-02-07$15.15$15.15436,180
2011-02-04$15.10$15.10729,900
2011-02-03$15.10$15.10362,740
2011-02-02$14.80$14.80717,260
2011-02-01$14.40$14.40484,460
2011-01-31$13.75$13.75538,800
2011-01-28$13.90$13.90547,820
2011-01-27$14.45$14.45657,700
2011-01-26$14.20$14.20681,200
2011-01-25$14.00$14.00478,220
2011-01-24$14.30$14.30224,680
2011-01-21$14.35$14.35364,640
2011-01-20$14.75$14.75522,880
2011-01-19$15.10$15.10503,460
2011-01-18$15.70$15.70756,320
2011-01-14$15.80$15.80692,220
2011-01-13$15.00$15.00260,100
2011-01-12$15.10$15.10277,620
2011-01-11$14.95$14.95774,020
2011-01-10$14.90$14.90919,760
2011-01-07$14.10$14.10344,480
2011-01-06$14.15$14.15539,760
2011-01-05$13.95$13.95524,900
2011-01-04$14.05$14.05321,820
2011-01-03$14.05$14.05598,960