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.

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Historical Stock Price — 2019

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2019-12-31$65.81$87.14267,600——
2019-12-30$66.23$87.69197,000——
2019-12-27$65.63$86.90194,400——
2019-12-26$65.42$86.62144,300——
2019-12-24$65.16$86.2880,300——
2019-12-23$65.47$86.69355,000——
2019-12-20$65.32$86.491,120,300——
2019-12-19$63.97$84.70280,600——
2019-12-18$62.53$82.80323,700——
2019-12-17$62.03$82.13294,500——
2019-12-16$61.72$81.72360,000——
2019-12-13$62.99$83.40301,400——
2019-12-12$62.00$82.09403,500——
2019-12-11$61.49$81.42166,300——
2019-12-10$60.55$80.17251,500——
2019-12-09$60.04$79.50387,400——
2019-12-06$61.65$81.63191,900——
2019-12-05$62.00$82.09304,800——
2019-12-04$62.22$82.38225,200——
2019-12-03$61.80$81.83158,200——
2019-12-02$61.83$81.87209,700——
2019-11-29$62.68$82.9986,500——
2019-11-27$62.80$83.15135,600——
2019-11-26$62.25$82.42278,400——
2019-11-25$62.96$83.36184,800——
2019-11-22$61.66$81.64231,200——
2019-11-21$62.55$82.82223,700——
2019-11-20$62.95$82.50211,800——
2019-11-19$63.51$83.24174,300——
2019-11-18$63.33$83.00167,400——
2019-11-15$63.05$82.64337,100——
2019-11-14$62.80$82.31163,000——
2019-11-13$62.81$82.32270,100——
2019-11-12$64.90$85.06342,100——
2019-11-11$64.25$84.21337,300——
2019-11-08$62.36$81.73466,300——
2019-11-07$60.83$79.73487,900——
2019-11-06$57.46$75.31207,500——
2019-11-05$57.66$75.57135,600——
2019-11-04$58.25$76.34181,700——
2019-11-01$57.74$75.68175,900——
2019-10-31$58.64$76.86164,400——
2019-10-30$58.69$76.92164,700——
2019-10-29$58.44$76.59157,000——
2019-10-28$58.31$76.42152,100——
2019-10-25$57.72$75.65132,700——
2019-10-24$57.95$75.95170,600——
2019-10-23$58.19$76.27161,100——
2019-10-22$58.01$76.03203,000——
2019-10-21$57.68$75.60195,700——
2019-10-18$56.84$74.50144,900——
2019-10-17$57.44$75.28190,600——
2019-10-16$56.45$73.99183,100——
2019-10-15$56.90$74.57230,100——
2019-10-14$56.25$73.72362,100——
2019-10-11$56.54$74.10271,400——
2019-10-10$55.58$72.84341,800——
2019-10-09$55.76$73.08306,700——
2019-10-08$54.87$71.91235,900——
2019-10-07$55.03$72.12261,800——
2019-10-04$55.01$72.10207,800——
2019-10-03$54.25$71.10190,100——
2019-10-02$53.67$70.34225,400——
2019-10-01$54.28$71.14217,800——
2019-09-30$55.10$72.22233,600——
2019-09-27$55.51$72.75221,300——
2019-09-26$56.41$73.93207,700——
2019-09-25$56.25$73.72217,300——
2019-09-24$54.60$71.56340,400——
2019-09-23$56.22$73.68252,300——
2019-09-20$56.24$73.712,388,900——
2019-09-19$55.07$72.18450,400——
2019-09-18$55.38$72.58439,400——
2019-09-17$55.61$72.88396,100——
2019-09-16$55.64$72.92990,000——
2019-09-13$57.77$75.72386,900——
2019-09-12$58.84$77.12273,900——
2019-09-11$59.07$77.42254,100——
2019-09-10$58.99$77.31212,200——
2019-09-09$58.78$77.04162,900——
2019-09-06$59.96$78.59116,900——
2019-09-05$60.17$78.86189,500——
2019-09-04$59.54$78.03135,300——
2019-09-03$58.86$77.14253,700——
2019-08-30$60.89$79.80198,900——
2019-08-29$60.74$79.61112,800——
2019-08-28$60.32$79.06153,900——
2019-08-27$59.09$77.45154,500——
2019-08-26$59.54$78.03126,200——
2019-08-23$58.07$76.11214,200——
2019-08-22$60.03$78.68188,700——
2019-08-21$60.22$78.11216,800——
2019-08-20$59.00$76.53264,300——
2019-08-19$58.91$76.41211,000——
2019-08-16$58.01$75.25171,200——
2019-08-15$55.55$72.06216,500——
2019-08-14$55.70$72.25296,100——
2019-08-13$57.13$74.11377,500——
2019-08-12$56.66$73.50289,100——
2019-08-09$56.45$73.22329,000——
2019-08-08$56.70$73.55585,600——
2019-08-07$61.88$80.27316,600——
2019-08-06$61.84$80.21251,700——
2019-08-05$61.88$80.27462,400——
2019-08-02$63.57$82.46166,200——
2019-08-01$62.94$81.64429,200——
2019-07-31$63.01$81.73264,400——
2019-07-30$63.52$82.39256,800——
2019-07-29$63.72$82.65294,100——
2019-07-26$63.51$82.38159,600——
2019-07-25$62.47$81.03161,300——
2019-07-24$62.98$81.69166,400——
2019-07-23$62.29$80.80128,700——
2019-07-22$61.71$80.05162,300——
2019-07-19$62.58$81.17338,900——
2019-07-18$62.60$81.20154,300——
2019-07-17$62.04$80.47169,600——
2019-07-16$62.48$81.05157,700——
2019-07-15$62.26$80.76110,100——
2019-07-12$62.93$81.63199,800——
2019-07-11$62.44$80.99270,500——
2019-07-10$61.43$79.68260,400——
2019-07-09$61.13$79.29249,600——
2019-07-08$61.39$79.63271,800——
2019-07-05$61.66$79.98239,200——
2019-07-03$60.91$79.0175,600——
2019-07-02$59.29$76.91212,800——
2019-07-01$59.13$76.70243,100——
2019-06-28$59.36$77.00426,600——
2019-06-27$59.38$77.02149,600——
2019-06-26$58.41$75.77197,200——
2019-06-25$58.67$76.10251,900——
2019-06-24$59.15$76.73267,800——
2019-06-21$59.86$77.65542,100——
2019-06-20$59.09$76.65261,200——
2019-06-19$59.08$76.63209,300——
2019-06-18$58.98$76.51193,800——
2019-06-17$58.64$76.06261,800——
2019-06-14$59.49$77.17252,400——
2019-06-13$59.96$77.78229,700——
2019-06-12$60.64$78.66155,700——
2019-06-11$60.26$78.17300,700——
2019-06-10$61.04$79.18256,800——
2019-06-07$60.26$78.17150,300——
2019-06-06$59.44$77.10142,600——
2019-06-05$58.90$76.40131,200——
2019-06-04$58.44$75.80239,100——
2019-06-03$56.40$73.16409,600——
2019-05-31$58.50$75.88372,800——
2019-05-30$57.69$74.83166,800——
2019-05-29$56.99$73.92318,700——
2019-05-28$57.17$74.16214,300——
2019-05-24$57.78$74.95239,000——
2019-05-23$57.16$74.14198,800——
2019-05-22$58.55$75.95147,300——
2019-05-21$57.98$75.21346,500——
2019-05-20$56.15$72.83299,100——
2019-05-17$57.09$74.05229,900——
2019-05-16$58.51$75.90324,300——
2019-05-15$57.62$73.96180,300——
2019-05-14$57.48$73.78191,800——
2019-05-13$55.88$71.73235,300——
2019-05-10$57.63$73.98186,800——
2019-05-09$58.02$74.48321,200——
2019-05-08$57.17$73.39253,800——
2019-05-07$56.62$72.68214,300——
2019-05-06$57.05$73.23270,000——
2019-05-03$56.49$72.51283,700——
2019-05-02$54.94$70.52394,900——
2019-05-01$55.20$70.86437,300——
2019-04-30$55.23$70.89276,300——
2019-04-29$55.09$70.72306,800——
2019-04-26$55.27$70.95258,900——
2019-04-25$55.17$70.82229,300——
2019-04-24$56.04$71.93158,100——
2019-04-23$56.29$72.26210,700——
2019-04-22$56.55$72.59142,100——
2019-04-18$56.44$72.45186,900——
2019-04-17$56.62$72.68167,300——
2019-04-16$56.96$73.12126,500——
2019-04-15$56.87$73.00124,400——
2019-04-12$57.44$73.73297,800——
2019-04-11$56.34$72.32135,400——
2019-04-10$56.27$72.23171,000——
2019-04-09$55.52$71.27232,200——
2019-04-08$55.84$71.68143,800——
2019-04-05$55.89$71.74416,700——
2019-04-04$55.96$71.83230,100——
2019-04-03$54.95$70.54364,900——
2019-04-02$53.92$69.21207,300——
2019-04-01$53.99$69.30238,300——
2019-03-29$54.25$69.64324,800——
2019-03-28$54.15$69.51278,400——
2019-03-27$53.66$68.88151,800——
2019-03-26$53.62$68.83281,800——
2019-03-25$52.66$67.60165,200——
2019-03-22$51.97$66.71272,800——
2019-03-21$52.82$67.80381,300——
2019-03-20$51.46$66.06357,500——
2019-03-19$51.56$66.18245,600——
2019-03-18$51.62$66.26210,100——
2019-03-15$51.23$65.76432,100——
2019-03-14$51.03$65.50146,400——
2019-03-13$51.15$65.66186,800——
2019-03-12$50.13$64.35304,000——
2019-03-11$49.62$63.69144,800——
2019-03-08$48.76$62.59137,200——
2019-03-07$48.52$62.28184,600——
2019-03-06$48.37$61.34219,900——
2019-03-05$48.82$61.92142,100——
2019-03-04$48.40$61.38294,300——
2019-03-01$49.26$62.47299,400——
2019-02-28$48.71$61.78339,100——
2019-02-27$49.38$62.63279,800——
2019-02-26$48.41$61.40305,100——
2019-02-25$50.15$63.60515,700——
2019-02-22$50.82$64.45304,000——
2019-02-21$49.07$62.23503,200——
2019-02-20$50.00$63.41365,900——
2019-02-19$50.28$63.77574,900——
2019-02-15$48.79$61.88743,600——
2019-02-14$48.81$61.90330,600——
2019-02-13$48.75$61.83191,300——
2019-02-12$48.86$61.97174,300——
2019-02-11$48.73$61.80177,600——
2019-02-08$48.67$61.73144,100——
2019-02-07$48.75$61.83107,000——
2019-02-06$48.75$61.83106,100——
2019-02-05$49.24$62.45161,300——
2019-02-04$49.23$62.44194,400——
2019-02-01$49.87$63.25247,100——
2019-01-31$48.45$61.45249,800——
2019-01-30$47.29$59.97219,200——
2019-01-29$46.66$59.18202,400——
2019-01-28$47.62$60.39146,800——
2019-01-25$48.15$61.07217,700——
2019-01-24$47.79$60.61147,100——
2019-01-23$47.33$60.03270,000——
2019-01-22$47.98$60.85235,600——
2019-01-18$48.68$61.74263,200——
2019-01-17$47.86$60.70281,000——
2019-01-16$48.01$60.89177,500——
2019-01-15$47.99$60.86194,700——
2019-01-14$47.67$60.46176,600——
2019-01-11$48.18$61.10278,100——
2019-01-10$48.60$61.64233,800——
2019-01-09$48.22$61.15353,500——
2019-01-08$48.12$61.03388,300——
2019-01-07$46.48$58.95479,600——
2019-01-04$45.54$57.76262,800——
2019-01-03$44.55$56.50219,400——
2019-01-02$45.00$57.07423,800——