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 — 2009

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2009-12-31$10.55$10.55246,700
2009-12-30$10.65$10.65255,420
2009-12-29$10.60$10.60201,480
2009-12-28$10.65$10.65170,580
2009-12-24$10.65$10.6575,860
2009-12-23$10.70$10.70453,440
2009-12-22$10.55$10.55358,380
2009-12-21$10.55$10.55508,880
2009-12-18$10.35$10.35660,460
2009-12-17$10.30$10.30365,260
2009-12-16$10.50$10.50403,740
2009-12-15$10.20$10.20446,520
2009-12-14$10.65$10.65443,940
2009-12-11$10.70$10.70325,580
2009-12-10$10.80$10.80241,180
2009-12-09$10.90$10.90216,820
2009-12-08$10.85$10.85258,720
2009-12-07$10.95$10.95325,420
2009-12-04$10.80$10.80476,160
2009-12-03$10.65$10.65823,960
2009-12-02$10.80$10.80289,160
2009-12-01$10.95$10.95841,820
2009-11-30$10.90$10.901,152,940
2009-11-27$10.15$10.15578,640
2009-11-25$10.55$10.55464,680
2009-11-24$10.65$10.65751,120
2009-11-23$10.60$10.60628,660
2009-11-20$9.90$9.90475,740
2009-11-19$10.05$10.05737,240
2009-11-18$10.00$10.00915,180
2009-11-17$9.80$9.80402,720
2009-11-16$9.80$9.80907,600
2009-11-13$10.05$10.05614,540
2009-11-12$10.40$10.40287,300
2009-11-11$10.90$10.90503,460
2009-11-10$10.70$10.70592,260
2009-11-09$10.70$10.70260,440
2009-11-06$10.45$10.45589,600
2009-11-05$10.70$10.70877,900
2009-11-04$9.70$9.70210,500
2009-11-03$9.85$9.85307,960
2009-11-02$9.50$9.50272,800
2009-10-30$9.60$9.60429,540
2009-10-29$9.65$9.65496,380
2009-10-28$9.10$9.10410,480
2009-10-27$9.50$9.50307,640
2009-10-26$9.70$9.70272,020
2009-10-23$10.10$10.10392,640
2009-10-22$10.65$10.65429,860
2009-10-21$10.35$10.35465,140
2009-10-20$10.90$10.90757,420
2009-10-19$10.95$10.95298,620
2009-10-16$10.85$10.85428,980
2009-10-15$11.15$11.15656,240
2009-10-14$11.30$11.30433,280
2009-10-13$10.75$10.75525,560
2009-10-12$10.25$10.25316,580
2009-10-09$9.90$9.90186,140
2009-10-08$9.80$9.80278,780
2009-10-07$9.75$9.75240,000
2009-10-06$10.05$10.05196,660
2009-10-05$10.20$10.20304,560
2009-10-02$9.75$9.75218,620
2009-10-01$10.00$10.00336,540
2009-09-30$10.60$10.60304,060
2009-09-29$10.75$10.75187,300
2009-09-28$10.80$10.80221,540
2009-09-25$10.60$10.60327,540
2009-09-24$10.50$10.50298,660
2009-09-23$10.80$10.80356,160
2009-09-22$11.10$11.10391,560
2009-09-21$10.15$10.15484,460
2009-09-18$10.50$10.50427,220
2009-09-17$10.80$10.80416,860
2009-09-16$11.20$11.20467,160
2009-09-15$11.50$11.50739,240
2009-09-14$10.55$10.55302,240
2009-09-11$10.40$10.40275,880
2009-09-10$10.30$10.30221,000
2009-09-09$10.35$10.35274,800
2009-09-08$10.30$10.30309,060
2009-09-04$10.45$10.45271,340
2009-09-03$10.30$10.30248,900
2009-09-02$10.25$10.25203,580
2009-09-01$10.20$10.20550,420
2009-08-31$10.55$10.55393,680
2009-08-28$10.55$10.55747,860
2009-08-27$9.55$9.55333,980
2009-08-26$9.40$9.40205,120
2009-08-25$9.40$9.40125,260
2009-08-24$9.45$9.45172,600
2009-08-21$9.45$9.45464,100
2009-08-20$8.95$8.95377,040
2009-08-19$9.00$9.00288,200
2009-08-18$9.15$9.15148,720
2009-08-17$8.70$8.70163,360
2009-08-14$9.30$9.30217,340
2009-08-13$9.50$9.50299,600
2009-08-12$9.45$9.45262,320
2009-08-11$9.35$9.35264,700
2009-08-10$9.50$9.50268,160
2009-08-07$9.55$9.55519,220
2009-08-06$9.50$9.50395,040
2009-08-05$9.65$9.65244,940
2009-08-04$9.75$9.75196,220
2009-08-03$9.65$9.65370,540
2009-07-31$9.50$9.50508,840
2009-07-30$9.60$9.601,221,760
2009-07-29$8.90$8.90294,200
2009-07-28$9.05$9.05420,200
2009-07-27$8.75$8.75461,040
2009-07-24$8.25$8.25411,400
2009-07-23$7.95$7.95706,920
2009-07-22$7.90$7.90290,360
2009-07-21$7.45$7.45555,500
2009-07-20$7.50$7.50490,800
2009-07-17$7.70$7.70454,840
2009-07-16$8.00$8.00409,320
2009-07-15$7.95$7.95886,480
2009-07-14$7.35$7.35467,760
2009-07-13$7.60$7.60270,840
2009-07-10$7.40$7.40323,220
2009-07-09$8.00$8.00267,380
2009-07-08$7.50$7.50439,320
2009-07-07$8.10$8.10213,960
2009-07-06$8.20$8.20297,840
2009-07-02$8.05$8.05293,040
2009-07-01$8.30$8.30229,380
2009-06-30$8.05$8.05431,880
2009-06-29$8.55$8.55300,100
2009-06-26$8.90$8.901,773,440
2009-06-25$8.55$8.55242,880
2009-06-24$8.35$8.35404,160
2009-06-23$7.80$7.80336,740
2009-06-22$8.05$8.05341,660
2009-06-19$8.60$8.60551,140
2009-06-18$8.50$8.50524,420
2009-06-17$8.55$8.55403,940
2009-06-16$8.85$8.85507,960
2009-06-15$9.70$9.70197,260
2009-06-12$9.95$9.95331,840
2009-06-11$10.20$10.20180,960
2009-06-10$10.15$10.15310,220
2009-06-09$10.45$10.45427,880
2009-06-08$10.65$10.65373,360
2009-06-05$11.15$11.15129,600
2009-06-04$11.00$11.00310,700
2009-06-03$10.80$10.80538,880
2009-06-02$11.35$11.35323,500
2009-06-01$11.70$11.70618,540
2009-05-29$11.25$11.25311,820
2009-05-28$11.00$11.00203,740
2009-05-27$11.05$11.05430,420
2009-05-26$10.80$10.80398,000
2009-05-22$9.95$9.95316,120
2009-05-21$10.25$10.25255,100
2009-05-20$10.50$10.50376,680
2009-05-19$10.10$10.10305,540
2009-05-18$10.20$10.20438,060
2009-05-15$9.60$9.60221,160
2009-05-14$9.50$9.50303,100
2009-05-13$9.40$9.40286,420
2009-05-12$9.70$9.70264,640
2009-05-11$9.65$9.65355,600
2009-05-08$9.45$9.45272,440
2009-05-07$9.00$9.00596,520
2009-05-06$9.20$9.20460,180
2009-05-05$9.45$9.45667,180
2009-05-04$9.55$9.55934,600
2009-05-01$8.95$8.95437,600
2009-04-30$8.65$8.65713,680
2009-04-29$9.15$9.15364,620
2009-04-28$8.95$8.95235,200
2009-04-27$8.75$8.75338,200
2009-04-24$9.15$9.15528,980
2009-04-23$8.25$8.25354,020
2009-04-22$8.35$8.35310,160
2009-04-21$8.50$8.50241,500
2009-04-20$8.20$8.20216,140
2009-04-17$8.95$8.95192,220
2009-04-16$9.10$9.10457,520
2009-04-15$8.05$8.05187,220
2009-04-14$8.25$8.25246,700
2009-04-13$8.70$8.70261,840
2009-04-09$8.50$8.50397,920
2009-04-08$7.75$7.75282,860
2009-04-07$7.60$7.60579,000
2009-04-06$8.25$8.25281,760
2009-04-03$8.65$8.65246,260
2009-04-02$9.10$9.10384,340
2009-04-01$8.65$8.65477,520
2009-03-31$7.85$7.85497,080
2009-03-30$8.65$8.65337,420
2009-03-27$9.00$9.00523,420
2009-03-26$8.90$8.90878,680
2009-03-25$8.45$8.45342,780
2009-03-24$8.50$8.50323,420
2009-03-23$9.25$9.25340,900
2009-03-20$8.55$8.55639,880
2009-03-19$8.80$8.80239,920
2009-03-18$9.75$9.75429,880
2009-03-17$9.10$9.10491,140
2009-03-16$9.20$9.20638,740
2009-03-13$8.65$8.65670,380
2009-03-12$8.20$8.20382,540
2009-03-11$7.60$7.60658,980
2009-03-10$6.90$6.90802,740
2009-03-09$6.10$6.10195,920
2009-03-06$5.95$5.95209,220
2009-03-05$5.90$5.90315,020
2009-03-04$6.50$6.50203,340
2009-03-03$6.55$6.55613,060
2009-03-02$6.80$6.80670,920
2009-02-27$6.20$6.20297,860
2009-02-26$5.80$5.80651,920
2009-02-25$5.70$5.70229,820
2009-02-24$6.00$6.00421,280
2009-02-23$5.60$5.60315,720
2009-02-20$5.90$5.90329,840
2009-02-19$6.20$6.20264,240
2009-02-18$6.40$6.40322,500
2009-02-17$6.25$6.25313,400
2009-02-13$6.60$6.60440,860
2009-02-12$6.20$6.20280,360
2009-02-11$6.35$6.35289,400
2009-02-10$6.60$6.60270,160
2009-02-09$7.20$7.20163,100
2009-02-06$7.20$7.20387,380
2009-02-05$6.85$6.85359,780
2009-02-04$7.15$7.15237,000
2009-02-03$6.85$6.85218,240
2009-02-02$6.65$6.65227,100
2009-01-30$6.60$6.60693,500
2009-01-29$6.75$6.75488,320
2009-01-28$7.05$7.05643,900
2009-01-27$7.25$7.25156,080
2009-01-26$7.25$7.25206,020
2009-01-23$7.45$7.45439,180
2009-01-22$7.30$7.30364,680
2009-01-21$7.90$7.90409,200
2009-01-20$7.15$7.15917,880
2009-01-16$6.90$6.90957,620
2009-01-15$6.40$6.40568,040
2009-01-14$7.00$7.00383,880
2009-01-13$7.70$7.70260,360
2009-01-12$7.70$7.70226,760
2009-01-09$8.30$8.30327,240
2009-01-08$9.40$9.40289,180
2009-01-07$8.70$8.70236,780
2009-01-06$8.75$8.75410,900
2009-01-05$8.05$8.05297,780
2009-01-02$7.85$7.85168,340