NASDAQ:CCOI | Historical Stock Price | COGENT COMMUNICATIONS HOLDINGS, 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
2002-02-05 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.62$7.63$16.06$33.84$71.30$150.222002-02-052026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$14.14$14.14171,600
2010-12-30$14.29$14.2996,900
2010-12-29$14.21$14.21210,500
2010-12-28$13.85$13.85137,300
2010-12-27$13.82$13.8282,500
2010-12-23$13.65$13.65116,600
2010-12-22$13.49$13.49222,300
2010-12-21$13.00$13.00283,700
2010-12-20$12.63$12.63243,600
2010-12-17$12.51$12.51271,000
2010-12-16$12.57$12.57223,500
2010-12-15$12.48$12.48199,100
2010-12-14$12.24$12.24113,200
2010-12-13$11.97$11.9777,800
2010-12-10$12.03$12.03251,000
2010-12-09$12.09$12.09193,900
2010-12-08$12.24$12.24148,900
2010-12-07$11.99$11.99262,400
2010-12-06$12.35$12.35363,600
2010-12-03$12.49$12.49132,400
2010-12-02$12.41$12.41122,800
2010-12-01$12.26$12.26193,900
2010-11-30$12.12$12.12237,800
2010-11-29$12.18$12.18153,000
2010-11-26$12.03$12.0389,800
2010-11-24$12.02$12.02188,800
2010-11-23$11.83$11.83113,400
2010-11-22$11.95$11.95115,500
2010-11-19$12.00$12.00388,200
2010-11-18$11.81$11.81237,200
2010-11-17$11.67$11.67216,000
2010-11-16$11.52$11.52195,800
2010-11-15$11.57$11.5789,100
2010-11-12$11.50$11.5092,200
2010-11-11$11.74$11.7465,300
2010-11-10$12.02$12.02306,900
2010-11-09$11.62$11.62198,600
2010-11-08$11.81$11.81296,500
2010-11-05$11.64$11.64287,900
2010-11-04$11.60$11.60873,000
2010-11-03$10.83$10.8392,200
2010-11-02$10.75$10.75188,400
2010-11-01$10.51$10.51168,700
2010-10-29$10.85$10.85165,200
2010-10-28$10.82$10.82117,200
2010-10-27$11.29$11.29233,800
2010-10-26$11.42$11.42255,900
2010-10-25$11.30$11.30110,000
2010-10-22$11.15$11.15201,500
2010-10-21$11.08$11.08391,200
2010-10-20$10.89$10.89284,800
2010-10-19$10.40$10.40181,200
2010-10-18$10.53$10.53111,200
2010-10-15$10.09$10.09199,400
2010-10-14$10.26$10.26136,500
2010-10-13$10.30$10.30290,500
2010-10-12$9.81$9.81113,400
2010-10-11$9.90$9.90110,700
2010-10-08$9.83$9.8392,800
2010-10-07$9.71$9.7196,900
2010-10-06$9.56$9.56194,900
2010-10-05$9.69$9.69212,200
2010-10-04$9.33$9.3395,900
2010-10-01$9.51$9.5197,600
2010-09-30$9.47$9.47197,700
2010-09-29$9.24$9.24121,900
2010-09-28$9.43$9.4382,200
2010-09-27$9.25$9.2582,700
2010-09-24$9.21$9.21181,000
2010-09-23$9.07$9.0785,000
2010-09-22$9.17$9.1779,300
2010-09-21$9.30$9.30198,500
2010-09-20$9.29$9.29313,900
2010-09-17$8.78$8.78369,800
2010-09-16$8.71$8.7183,400
2010-09-15$8.80$8.80263,100
2010-09-14$8.66$8.66137,600
2010-09-13$8.77$8.77180,500
2010-09-10$8.76$8.7696,500
2010-09-09$8.70$8.7055,000
2010-09-08$8.71$8.71165,600
2010-09-07$8.88$8.88108,500
2010-09-03$9.47$9.47131,600
2010-09-02$9.12$9.1277,800
2010-09-01$9.22$9.22137,600
2010-08-31$8.72$8.72111,900
2010-08-30$8.73$8.73109,400
2010-08-27$9.08$9.08242,600
2010-08-26$8.70$8.70165,300
2010-08-25$8.37$8.37298,000
2010-08-24$8.38$8.3895,600
2010-08-23$8.38$8.38177,800
2010-08-20$8.30$8.30202,100
2010-08-19$8.42$8.42548,500
2010-08-18$8.58$8.58119,800
2010-08-17$8.76$8.76101,600
2010-08-16$8.58$8.58122,700
2010-08-13$8.46$8.46195,500
2010-08-12$8.70$8.70465,500
2010-08-11$8.41$8.41368,100
2010-08-10$8.70$8.70178,000
2010-08-09$9.06$9.06130,800
2010-08-06$8.95$8.95168,700
2010-08-05$9.00$9.00315,100
2010-08-04$9.00$9.00279,000
2010-08-03$8.70$8.70217,100
2010-08-02$8.65$8.65224,400
2010-07-30$8.62$8.62276,100
2010-07-29$8.59$8.59181,500
2010-07-28$8.57$8.57191,900
2010-07-27$8.67$8.67249,000
2010-07-26$8.65$8.65189,000
2010-07-23$8.30$8.30127,300
2010-07-22$8.15$8.15191,300
2010-07-21$7.65$7.65333,900
2010-07-20$7.61$7.61202,400
2010-07-19$7.69$7.69208,800
2010-07-16$7.80$7.80297,700
2010-07-15$8.08$8.08161,600
2010-07-14$8.18$8.18288,500
2010-07-13$8.34$8.34428,600
2010-07-12$7.89$7.89312,200
2010-07-09$7.64$7.64194,300
2010-07-08$7.57$7.57299,400
2010-07-07$7.15$7.15325,900
2010-07-06$7.07$7.07234,900
2010-07-02$7.03$7.03458,600
2010-07-01$7.25$7.25697,800
2010-06-30$7.58$7.58156,000
2010-06-29$7.78$7.78224,100
2010-06-28$8.15$8.15164,200
2010-06-25$8.19$8.19411,200
2010-06-24$8.35$8.35164,200
2010-06-23$8.51$8.51138,500
2010-06-22$8.43$8.4383,000
2010-06-21$8.55$8.55117,800
2010-06-18$8.66$8.66243,200
2010-06-17$8.63$8.63146,500
2010-06-16$8.69$8.69141,100
2010-06-15$8.61$8.61487,200
2010-06-14$8.41$8.41335,700
2010-06-11$8.14$8.14288,900
2010-06-10$8.11$8.11324,600
2010-06-09$8.16$8.16329,500
2010-06-08$8.27$8.27425,900
2010-06-07$8.33$8.33292,100
2010-06-04$8.53$8.53196,900
2010-06-03$9.15$9.15156,600
2010-06-02$9.04$9.04197,900
2010-06-01$8.93$8.93363,900
2010-05-28$9.05$9.05164,700
2010-05-27$9.18$9.18301,900
2010-05-26$8.90$8.90306,000
2010-05-25$8.76$8.76192,400
2010-05-24$8.81$8.81273,200
2010-05-21$8.86$8.86479,300
2010-05-20$8.99$8.99736,700
2010-05-19$9.38$9.38829,100
2010-05-18$9.66$9.66496,800
2010-05-17$9.87$9.87304,600
2010-05-14$9.71$9.71294,300
2010-05-13$9.85$9.85192,100
2010-05-12$9.61$9.61473,700
2010-05-11$9.39$9.39360,000
2010-05-10$9.64$9.64763,900
2010-05-07$9.18$9.18898,800
2010-05-06$9.50$9.50834,000
2010-05-05$9.91$9.91346,500
2010-05-04$10.08$10.08266,200
2010-05-03$10.48$10.48211,800
2010-04-30$10.19$10.19210,000
2010-04-29$10.41$10.41224,100
2010-04-28$10.25$10.25144,000
2010-04-27$10.08$10.08186,900
2010-04-26$10.35$10.35271,600
2010-04-23$10.27$10.27282,600
2010-04-22$10.25$10.25309,900
2010-04-21$10.25$10.25172,400
2010-04-20$10.20$10.20382,100
2010-04-19$9.98$9.98174,000
2010-04-16$9.89$9.89285,400
2010-04-15$10.18$10.18219,500
2010-04-14$10.20$10.20240,000
2010-04-13$10.02$10.02283,400
2010-04-12$10.06$10.06413,000
2010-04-09$10.07$10.07454,000
2010-04-08$10.02$10.02402,200
2010-04-07$10.26$10.26403,100
2010-04-06$10.13$10.13213,000
2010-04-05$10.17$10.17332,300
2010-04-01$10.05$10.052,273,000
2010-03-31$10.41$10.41220,800
2010-03-30$10.76$10.76114,200
2010-03-29$10.85$10.85145,700
2010-03-26$10.84$10.84207,400
2010-03-25$10.99$10.99151,600
2010-03-24$11.25$11.25209,300
2010-03-23$11.42$11.42144,300
2010-03-22$11.30$11.30127,400
2010-03-19$11.23$11.23278,700
2010-03-18$11.47$11.47152,600
2010-03-17$11.44$11.44122,600
2010-03-16$11.40$11.40143,800
2010-03-15$11.35$11.35135,700
2010-03-12$11.20$11.20207,900
2010-03-11$11.43$11.43299,600
2010-03-10$11.44$11.44198,900
2010-03-09$11.39$11.39463,200
2010-03-08$11.46$11.46449,800
2010-03-05$11.42$11.42771,000
2010-03-04$10.73$10.73274,200
2010-03-03$10.52$10.52404,500
2010-03-02$10.57$10.57775,000
2010-03-01$10.05$10.051,287,000
2010-02-26$9.85$9.85517,500
2010-02-25$10.02$10.021,025,900
2010-02-24$10.12$10.12957,600
2010-02-23$10.54$10.541,755,600
2010-02-22$10.94$10.94206,700
2010-02-19$11.11$11.11210,400
2010-02-18$11.24$11.24223,600
2010-02-17$11.45$11.45234,800
2010-02-16$11.21$11.21170,600
2010-02-12$11.12$11.12174,000
2010-02-11$11.16$11.16289,600
2010-02-10$10.78$10.78263,400
2010-02-09$10.82$10.82413,400
2010-02-08$10.76$10.76308,600
2010-02-05$10.76$10.76329,600
2010-02-04$10.97$10.97444,100
2010-02-03$11.25$11.25261,000
2010-02-02$11.16$11.16487,800
2010-02-01$10.94$10.94708,900
2010-01-29$10.92$10.92395,600
2010-01-28$11.00$11.00551,700
2010-01-27$10.90$10.90325,000
2010-01-26$10.92$10.92495,600
2010-01-25$11.50$11.50624,000
2010-01-22$11.49$11.49956,300
2010-01-21$11.50$11.50421,600
2010-01-20$11.73$11.73242,700
2010-01-19$11.90$11.90266,800
2010-01-15$11.62$11.62405,200
2010-01-14$11.87$11.87938,800
2010-01-13$11.35$11.35680,400
2010-01-12$11.14$11.14496,000
2010-01-11$11.10$11.10803,500
2010-01-08$10.72$10.72347,500
2010-01-07$10.43$10.43184,500
2010-01-06$10.52$10.52504,500
2010-01-05$10.04$10.04560,600
2010-01-04$9.93$9.93460,400