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 — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$7.13$7.13576,000
2015-12-30$7.36$7.36455,900
2015-12-29$7.42$7.42540,600
2015-12-28$7.45$7.45948,700
2015-12-24$7.12$7.12385,100
2015-12-23$7.07$7.07526,700
2015-12-22$7.00$7.00520,800
2015-12-21$6.98$6.98543,700
2015-12-18$6.99$6.992,275,000
2015-12-17$7.24$7.24943,600
2015-12-16$6.99$6.99670,000
2015-12-15$6.94$6.94702,800
2015-12-14$6.79$6.791,026,900
2015-12-11$6.47$6.47628,700
2015-12-10$6.54$6.54453,800
2015-12-09$6.69$6.69654,900
2015-12-08$6.44$6.44510,500
2015-12-07$6.59$6.59379,000
2015-12-04$6.71$6.71470,000
2015-12-03$6.67$6.67450,100
2015-12-02$6.81$6.81694,900
2015-12-01$6.98$6.98372,900
2015-11-30$7.04$7.04713,400
2015-11-27$6.93$6.93231,000
2015-11-25$6.89$6.89706,600
2015-11-24$6.69$6.69593,000
2015-11-23$6.63$6.63822,000
2015-11-20$6.83$6.83964,000
2015-11-19$6.76$6.76719,000
2015-11-18$7.06$7.06824,100
2015-11-17$7.01$7.01627,100
2015-11-16$6.80$6.80368,600
2015-11-13$6.77$6.77434,400
2015-11-12$6.71$6.71374,400
2015-11-11$6.73$6.73404,400
2015-11-10$6.63$6.63508,400
2015-11-09$6.82$6.82478,700
2015-11-06$7.09$7.09822,700
2015-11-05$6.83$6.83550,100
2015-11-04$6.64$6.64778,600
2015-11-03$6.80$6.801,413,700
2015-11-02$6.71$6.71853,200
2015-10-30$6.61$6.611,143,400
2015-10-29$6.54$6.541,678,000
2015-10-28$6.45$6.451,682,500
2015-10-27$6.25$6.25733,500
2015-10-26$6.59$6.59492,200
2015-10-23$6.56$6.56399,700
2015-10-22$6.49$6.49301,000
2015-10-21$6.32$6.32473,100
2015-10-20$6.51$6.51406,100
2015-10-19$6.62$6.62488,600
2015-10-16$6.58$6.58394,800
2015-10-15$6.75$6.75391,700
2015-10-14$6.45$6.45281,100
2015-10-13$6.33$6.33290,500
2015-10-12$6.37$6.37318,000
2015-10-09$6.41$6.41371,000
2015-10-08$6.38$6.38525,300
2015-10-07$6.38$6.38336,000
2015-10-06$6.25$6.25352,400
2015-10-05$6.36$6.36877,900
2015-10-02$5.81$5.81510,300
2015-10-01$5.69$5.69370,400
2015-09-30$5.72$5.72528,600
2015-09-29$5.84$5.84503,400
2015-09-28$6.15$6.15477,600
2015-09-25$5.94$5.94541,900
2015-09-24$5.99$5.99430,200
2015-09-23$5.99$5.99503,200
2015-09-22$6.15$6.15335,200
2015-09-21$6.37$6.37260,100
2015-09-18$6.40$6.40620,900
2015-09-17$6.51$6.51232,000
2015-09-16$6.58$6.58275,800
2015-09-15$6.56$6.56319,300
2015-09-14$6.30$6.30213,300
2015-09-11$6.29$6.29430,800
2015-09-10$6.37$6.37543,200
2015-09-09$6.36$6.36403,100
2015-09-08$6.52$6.52295,000
2015-09-04$6.47$6.47263,100
2015-09-03$6.60$6.60252,700
2015-09-02$6.63$6.63518,800
2015-09-01$6.59$6.59641,500
2015-08-31$7.04$7.04349,900
2015-08-28$6.95$6.95447,600
2015-08-27$6.82$6.82491,400
2015-08-26$6.76$6.76459,200
2015-08-25$6.70$6.70753,100
2015-08-24$6.59$6.59872,300
2015-08-21$7.03$7.03511,500
2015-08-20$7.07$7.07507,700
2015-08-19$7.36$7.36343,500
2015-08-18$7.46$7.46462,600
2015-08-17$7.46$7.46447,900
2015-08-14$7.54$7.54342,100
2015-08-13$7.58$7.58442,800
2015-08-12$7.66$7.66553,600
2015-08-11$7.74$7.74465,100
2015-08-10$7.94$7.94441,600
2015-08-07$7.83$7.83660,500
2015-08-06$7.89$7.89727,600
2015-08-05$7.78$7.78932,900
2015-08-04$7.74$7.741,174,800
2015-08-03$7.90$7.901,185,900
2015-07-31$8.07$8.071,801,300
2015-07-30$8.10$8.104,884,000
2015-07-29$6.87$6.875,267,800
2015-07-28$6.13$6.131,090,200
2015-07-27$6.15$6.15677,900
2015-07-24$6.15$6.15924,700
2015-07-23$6.22$6.22485,600
2015-07-22$6.18$6.18610,500
2015-07-21$6.29$6.291,002,300
2015-07-20$6.16$6.16767,500
2015-07-17$6.36$6.36461,200
2015-07-16$6.40$6.40386,400
2015-07-15$6.41$6.41399,800
2015-07-14$6.48$6.48524,700
2015-07-13$6.45$6.45525,600
2015-07-10$6.42$6.42316,700
2015-07-09$6.33$6.33557,900
2015-07-08$6.36$6.361,169,800
2015-07-07$6.47$6.47853,900
2015-07-06$6.41$6.411,260,300
2015-07-02$6.79$6.79755,600
2015-07-01$6.97$6.971,262,100
2015-06-30$6.92$6.922,076,100
2015-06-29$7.43$7.431,274,100
2015-06-26$7.79$7.791,772,700
2015-06-25$7.86$7.86669,900
2015-06-24$7.90$7.90868,100
2015-06-23$8.19$8.19341,900
2015-06-22$8.17$8.17477,500
2015-06-19$8.19$8.192,426,700
2015-06-18$8.08$8.08839,200
2015-06-17$7.99$7.99983,100
2015-06-16$7.90$7.90804,000
2015-06-15$7.68$7.68540,700
2015-06-12$7.74$7.74479,600
2015-06-11$7.68$7.68490,000
2015-06-10$7.76$7.76700,800
2015-06-09$7.80$7.801,129,500
2015-06-08$7.98$7.98898,300
2015-06-05$8.00$8.00792,300
2015-06-04$7.93$7.93698,100
2015-06-03$7.87$7.87611,700
2015-06-02$7.77$7.77731,700
2015-06-01$7.79$7.79851,600
2015-05-29$7.83$7.83700,200
2015-05-28$7.86$7.86551,800
2015-05-27$7.72$7.72778,800
2015-05-26$7.66$7.66777,600
2015-05-22$7.73$7.73469,300
2015-05-21$7.75$7.751,119,900
2015-05-20$7.79$7.79900,700
2015-05-19$7.91$7.911,271,900
2015-05-18$7.88$7.882,337,000
2015-05-15$7.71$7.711,242,700
2015-05-14$7.79$7.791,075,700
2015-05-13$7.96$7.961,151,600
2015-05-12$7.94$7.941,205,800
2015-05-11$7.79$7.79997,400
2015-05-08$7.78$7.781,113,200
2015-05-07$7.69$7.691,215,700
2015-05-06$7.80$7.801,194,800
2015-05-05$7.80$7.801,000,000
2015-05-04$7.97$7.97763,200
2015-05-01$7.89$7.891,296,100
2015-04-30$7.92$7.921,670,600
2015-04-29$8.12$8.122,051,600
2015-04-28$7.97$7.971,721,000
2015-04-27$7.95$7.952,300,000
2015-04-24$8.46$8.463,557,200
2015-04-23$7.93$7.932,688,200
2015-04-22$7.89$7.892,130,100
2015-04-21$7.84$7.841,700,900
2015-04-20$8.04$8.041,161,600
2015-04-17$7.83$7.83939,700
2015-04-16$7.88$7.881,170,200
2015-04-15$7.84$7.842,328,600
2015-04-14$7.54$7.54830,000
2015-04-13$7.61$7.61953,900
2015-04-10$7.63$7.63863,400
2015-04-09$7.65$7.651,318,900
2015-04-08$7.65$7.651,865,200
2015-04-07$7.80$7.801,208,400
2015-04-06$7.88$7.881,474,200
2015-04-02$7.93$7.931,090,800
2015-04-01$7.99$7.992,013,400
2015-03-31$7.88$7.882,529,500
2015-03-30$7.96$7.961,396,100
2015-03-27$8.00$8.002,039,400
2015-03-26$8.08$8.082,395,600
2015-03-25$8.38$8.385,720,000
2015-03-24$8.70$8.7016,628,300
2015-03-23$13.16$13.163,100,200
2015-03-20$14.44$14.442,643,300
2015-03-19$15.36$15.36656,400
2015-03-18$15.91$15.91305,500
2015-03-17$15.97$15.97316,600
2015-03-16$16.05$16.05291,500
2015-03-13$15.81$15.81229,100
2015-03-12$15.97$15.97349,500
2015-03-11$15.85$15.85646,200
2015-03-10$15.21$15.21938,600
2015-03-09$15.63$15.63625,400
2015-03-06$15.75$15.75621,400
2015-03-05$16.08$16.08393,000
2015-03-04$16.27$16.27481,100
2015-03-03$16.28$16.28627,400
2015-03-02$17.08$17.08502,800
2015-02-27$17.06$17.06522,500
2015-02-26$17.15$17.15408,600
2015-02-25$17.19$17.19446,700
2015-02-24$16.77$16.77413,700
2015-02-23$16.80$16.80568,700
2015-02-20$16.75$16.75911,700
2015-02-19$15.98$15.98913,000
2015-02-18$16.11$16.112,096,700
2015-02-17$18.10$18.10469,700
2015-02-13$17.69$17.69294,300
2015-02-12$17.70$17.70208,000
2015-02-11$17.15$17.15247,400
2015-02-10$17.37$17.37279,700
2015-02-09$16.96$16.96619,900
2015-02-06$17.82$17.82316,900
2015-02-05$17.99$17.99331,200
2015-02-04$17.62$17.62460,500
2015-02-03$18.37$18.37560,800
2015-02-02$17.85$17.851,170,400
2015-01-30$19.08$19.08888,000
2015-01-29$19.00$19.00304,060
2015-01-28$18.60$18.60233,060
2015-01-27$18.85$18.85236,300
2015-01-26$18.95$18.95312,120
2015-01-23$18.55$18.55217,340
2015-01-22$18.25$18.25213,240
2015-01-21$18.05$18.05205,940
2015-01-20$17.60$17.60253,880
2015-01-16$18.30$18.30167,300
2015-01-15$17.85$17.85261,620
2015-01-14$18.50$18.50279,980
2015-01-13$18.75$18.75239,660
2015-01-12$18.75$18.75245,700
2015-01-09$19.35$19.35329,200
2015-01-08$19.35$19.351,287,380
2015-01-07$19.60$19.60312,140
2015-01-06$18.90$18.90552,220
2015-01-05$19.75$19.75443,360
2015-01-02$20.55$20.55457,180