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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$59.87$82.49261,000——
2020-12-30$58.85$81.09266,500——
2020-12-29$59.71$82.27351,300——
2020-12-28$60.99$84.04302,600——
2020-12-24$59.56$82.07359,100——
2020-12-23$58.52$80.63651,800——
2020-12-22$61.97$85.39481,100——
2020-12-21$60.06$82.76249,500——
2020-12-18$60.89$83.901,263,200——
2020-12-17$60.63$83.54326,000——
2020-12-16$60.47$83.32465,900——
2020-12-15$60.74$83.69385,900——
2020-12-14$59.32$81.74342,400——
2020-12-11$58.42$80.50268,500——
2020-12-10$58.82$81.05408,800——
2020-12-09$59.01$81.31421,500——
2020-12-08$57.28$78.93303,100——
2020-12-07$57.54$79.28276,300——
2020-12-04$58.27$80.29259,300——
2020-12-03$58.13$80.10351,200——
2020-12-02$57.06$78.62334,800——
2020-12-01$57.96$79.86630,800——
2020-11-30$58.14$80.11503,700——
2020-11-27$57.36$79.04100,000——
2020-11-25$56.81$78.28310,300——
2020-11-24$57.30$78.95609,200——
2020-11-23$57.52$79.26374,400——
2020-11-20$57.54$79.28306,800——
2020-11-19$58.36$80.41291,800——
2020-11-18$58.66$79.82286,100——
2020-11-17$60.52$82.35420,500——
2020-11-16$62.05$84.43907,100——
2020-11-13$61.14$83.20413,700——
2020-11-12$59.15$80.49415,200——
2020-11-11$59.18$80.53328,900——
2020-11-10$58.88$80.12559,800——
2020-11-09$58.54$79.661,137,700——
2020-11-06$54.09$73.60650,800——
2020-11-05$55.04$74.90710,900——
2020-11-04$57.29$77.96343,900——
2020-11-03$57.88$78.76474,900——
2020-11-02$55.80$75.93366,000——
2020-10-30$55.80$75.93297,000——
2020-10-29$56.10$76.34240,700——
2020-10-28$55.50$75.52421,400——
2020-10-27$56.03$76.24362,500——
2020-10-26$57.05$77.63242,800——
2020-10-23$57.67$78.47202,000——
2020-10-22$57.45$78.17242,000——
2020-10-21$58.22$79.22819,600——
2020-10-20$58.70$79.88365,800——
2020-10-19$59.45$80.90468,500——
2020-10-16$61.07$83.10319,800——
2020-10-15$62.32$84.80259,600——
2020-10-14$62.08$84.48297,800——
2020-10-13$63.57$86.50333,100——
2020-10-12$65.05$88.52503,600——
2020-10-09$62.73$85.36354,600——
2020-10-08$62.23$84.68348,500——
2020-10-07$62.29$84.76366,200——
2020-10-06$61.65$83.89343,600——
2020-10-05$63.13$85.90380,200——
2020-10-02$60.40$82.19286,500——
2020-10-01$60.48$82.30303,600——
2020-09-30$60.05$81.71425,200——
2020-09-29$60.91$82.88294,200——
2020-09-28$60.91$82.88578,600——
2020-09-25$59.07$80.38440,000——
2020-09-24$59.71$81.25293,000——
2020-09-23$60.23$81.96416,900——
2020-09-22$61.84$84.15464,200——
2020-09-21$62.55$85.11465,400——
2020-09-18$61.93$84.271,121,800——
2020-09-17$63.82$86.84601,300——
2020-09-16$66.86$90.98533,800——
2020-09-15$66.56$90.57398,500——
2020-09-14$66.48$90.46367,600——
2020-09-11$65.59$89.25299,600——
2020-09-10$65.43$89.03335,700——
2020-09-09$65.79$89.52350,900——
2020-09-08$65.18$88.69504,900——
2020-09-04$66.72$90.79469,500——
2020-09-03$68.10$92.67524,800——
2020-09-02$68.82$93.65408,300——
2020-09-01$68.51$93.22488,400——
2020-08-31$67.26$91.52411,600——
2020-08-28$65.91$89.69306,100——
2020-08-27$66.34$90.27298,200——
2020-08-26$66.00$89.81279,200——
2020-08-25$66.27$90.18522,500——
2020-08-24$64.59$87.89292,400——
2020-08-21$65.69$89.39411,600——
2020-08-20$67.01$91.18421,300——
2020-08-19$67.01$90.221,036,100——
2020-08-18$66.66$89.75404,700——
2020-08-17$67.05$90.28444,400——
2020-08-14$67.90$91.42300,000——
2020-08-13$68.91$92.78420,200——
2020-08-12$69.89$94.10429,800——
2020-08-11$67.74$91.21705,900——
2020-08-10$69.83$94.02920,300——
2020-08-07$74.61$100.46581,500——
2020-08-06$79.05$106.441,151,100——
2020-08-05$85.89$115.64530,300——
2020-08-04$88.02$118.51604,700——
2020-08-03$89.03$119.87330,500——
2020-07-31$90.11$121.33482,200——
2020-07-30$88.74$119.48272,400——
2020-07-29$88.74$119.48269,800——
2020-07-28$86.32$116.22351,500——
2020-07-27$85.83$115.56265,100——
2020-07-24$83.43$112.33158,300——
2020-07-23$84.39$113.63169,800——
2020-07-22$83.74$112.75171,600——
2020-07-21$84.09$113.22327,700——
2020-07-20$83.44$112.35164,000——
2020-07-17$82.21$110.69127,700——
2020-07-16$81.28$109.44178,200——
2020-07-15$81.58$109.84278,500——
2020-07-14$82.16$110.62232,500——
2020-07-13$79.07$106.46257,900——
2020-07-10$80.45$108.32205,500——
2020-07-09$81.86$110.22240,800——
2020-07-08$81.19$109.32179,700——
2020-07-07$80.34$108.17222,200——
2020-07-06$81.41$109.61188,300——
2020-07-02$81.30$109.46236,200——
2020-07-01$82.26$110.76492,100——
2020-06-30$77.36$104.16416,800——
2020-06-29$78.32$105.45306,300——
2020-06-26$76.29$102.72503,700——
2020-06-25$79.04$106.42214,600——
2020-06-24$78.34$105.48223,700——
2020-06-23$78.81$106.11274,000——
2020-06-22$80.17$107.94303,500——
2020-06-19$78.91$106.25440,300——
2020-06-18$78.61$105.84221,300——
2020-06-17$78.69$105.95257,800——
2020-06-16$80.50$108.39447,800——
2020-06-15$75.92$102.22281,000——
2020-06-12$74.57$100.40364,400——
2020-06-11$74.78$100.69543,400——
2020-06-10$79.03$106.41349,800——
2020-06-09$77.20$103.94275,000——
2020-06-08$76.98$103.65239,400——
2020-06-05$78.31$105.44380,500——
2020-06-04$76.76$103.35279,200——
2020-06-03$77.72$104.64280,800——
2020-06-02$77.06$103.76460,500——
2020-06-01$78.16$105.24371,000——
2020-05-29$76.52$103.03695,000——
2020-05-28$77.44$104.27432,300——
2020-05-27$79.11$106.52297,200——
2020-05-26$77.00$103.68348,200——
2020-05-22$75.81$102.07167,800——
2020-05-21$75.25$101.32190,000——
2020-05-20$77.17$102.99278,400——
2020-05-19$76.66$102.31369,600——
2020-05-18$78.80$105.16402,400——
2020-05-15$75.43$100.67620,500——
2020-05-14$75.46$100.71453,800——
2020-05-13$76.27$101.79578,000——
2020-05-12$76.02$101.45498,600——
2020-05-11$76.11$101.57399,900——
2020-05-08$79.14$105.62385,400——
2020-05-07$78.44$104.681,080,600——
2020-05-06$85.59$114.23351,500——
2020-05-05$84.83$113.21246,500——
2020-05-04$83.22$111.06450,700——
2020-05-01$82.14$109.62445,300——
2020-04-30$83.83$111.88510,400——
2020-04-29$85.63$114.28581,300——
2020-04-28$88.15$117.64278,100——
2020-04-27$88.89$118.63299,600——
2020-04-24$87.59$116.89402,400——
2020-04-23$89.88$119.95344,800——
2020-04-22$90.68$121.02275,500——
2020-04-21$89.56$119.52604,800——
2020-04-20$89.78$119.82573,600——
2020-04-17$87.35$116.57471,000——
2020-04-16$90.75$121.11507,300——
2020-04-15$86.06$114.85482,100——
2020-04-14$88.16$117.66546,100——
2020-04-13$84.68$113.01265,900——
2020-04-09$85.35$113.91612,600——
2020-04-08$82.62$110.26487,200——
2020-04-07$84.23$112.41478,900——
2020-04-06$86.95$116.04412,200——
2020-04-03$86.38$115.28492,700——
2020-04-02$83.64$111.62431,300——
2020-04-01$80.87$107.93452,000——
2020-03-31$81.97$109.39601,900——
2020-03-30$84.38$112.61422,700——
2020-03-27$78.44$104.68522,700——
2020-03-26$80.48$107.41670,800——
2020-03-25$69.67$92.98590,600——
2020-03-24$73.83$98.53833,400——
2020-03-23$67.85$90.55708,000——
2020-03-20$75.95$101.361,160,600——
2020-03-19$81.23$108.41766,500——
2020-03-18$85.76$114.45805,400——
2020-03-17$85.25$113.77657,200——
2020-03-16$76.49$102.08450,600——
2020-03-13$81.40$108.63507,000——
2020-03-12$77.36$103.24532,200——
2020-03-11$84.09$111.34576,400——
2020-03-10$86.04$113.92791,600——
2020-03-09$81.72$108.201,090,100——
2020-03-06$87.00$115.20519,500——
2020-03-05$86.80$114.93540,600——
2020-03-04$87.06$115.28467,500——
2020-03-03$81.26$107.60527,500——
2020-03-02$79.15$104.80421,000——
2020-02-28$73.01$96.67554,000——
2020-02-27$76.01$100.64469,100——
2020-02-26$74.95$99.24262,200——
2020-02-25$73.98$97.96304,800——
2020-02-24$74.35$98.45273,600——
2020-02-21$75.85$100.43253,400——
2020-02-20$76.68$101.53206,400——
2020-02-19$76.30$101.03170,800——
2020-02-18$75.98$100.60188,300——
2020-02-14$76.79$101.68173,200——
2020-02-13$75.97$100.59152,100——
2020-02-12$75.22$99.60253,800——
2020-02-11$75.05$99.37196,700——
2020-02-10$74.83$99.08191,600——
2020-02-07$75.84$100.42271,300——
2020-02-06$74.73$98.95347,000——
2020-02-05$71.82$95.10199,500——
2020-02-04$71.78$95.04164,300——
2020-02-03$70.64$93.53361,600——
2020-01-31$70.93$93.92244,100——
2020-01-30$72.46$95.94242,800——
2020-01-29$73.71$97.60225,600——
2020-01-28$74.07$98.08163,500——
2020-01-27$73.05$96.72199,500——
2020-01-24$72.87$96.49182,700——
2020-01-23$72.94$96.58241,500——
2020-01-22$72.74$96.31175,900——
2020-01-21$73.76$97.66244,600——
2020-01-17$73.23$96.96186,400——
2020-01-16$73.28$97.03188,400——
2020-01-15$72.13$95.51283,300——
2020-01-14$70.96$93.96246,600——
2020-01-13$71.10$94.14268,300——
2020-01-10$69.98$92.66320,800——
2020-01-09$70.50$93.35482,000——
2020-01-08$69.24$91.68413,300——
2020-01-07$68.02$90.06254,000——
2020-01-06$67.67$89.60255,300——
2020-01-03$66.69$88.30320,300——
2020-01-02$65.50$86.73204,600——