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 — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$21.60$21.60575
2004-12-30$20.60$20.601,325
2004-12-29$21.00$21.002,000
2004-12-28$21.00$21.006,595
2004-12-27$21.60$21.604,485
2004-12-23$23.20$23.203,700
2004-12-22$22.60$22.604,045
2004-12-21$21.80$21.803,270
2004-12-20$22.80$22.8023,380
2004-12-17$18.20$18.2014,290
2004-12-16$21.40$21.408,140
2004-12-15$24.20$24.207,740
2004-12-14$26.60$26.6016,190
2004-12-13$32.00$32.006,860
2004-12-10$33.00$33.0011,865
2004-12-09$29.40$29.4030,305
2004-12-08$38.00$38.0072,650
2004-12-07$24.00$24.0029,710
2004-12-06$17.00$17.006,690
2004-12-03$15.40$15.404,365
2004-12-02$14.60$14.601,315
2004-12-01$14.80$14.801,990
2004-11-30$15.80$15.803,570
2004-11-29$15.20$15.204,090
2004-11-26$14.20$14.201,595
2004-11-24$13.80$13.802,920
2004-11-23$13.40$13.407,940
2004-11-22$15.60$15.607,345
2004-11-19$17.00$17.004,645
2004-11-18$16.80$16.809,305
2004-11-17$16.20$16.203,200
2004-11-16$16.00$16.008,865
2004-11-15$15.20$15.207,235
2004-11-12$13.40$13.406,365
2004-11-11$12.20$12.209,215
2004-11-10$14.80$14.8023,240
2004-11-09$13.00$13.0013,275
2004-11-08$9.40$9.406,740
2004-11-05$8.80$8.805,100
2004-11-04$7.80$7.802,805
2004-11-03$7.00$7.001,895
2004-11-02$6.60$6.60350
2004-11-01$6.40$6.40980
2004-10-29$6.60$6.60495
2004-10-28$7.00$7.00800
2004-10-27$7.00$7.002,120
2004-10-26$6.60$6.60970
2004-10-25$6.20$6.202,455
2004-10-22$5.80$5.80930
2004-10-21$6.20$6.20510
2004-10-20$6.20$6.20285
2004-10-19$5.80$5.8040
2004-10-18$6.00$6.00380
2004-10-15$6.00$6.00250
2004-10-14$6.00$6.00480
2004-10-13$5.60$5.603,580
2004-10-12$6.00$6.001,780
2004-10-11$6.20$6.20200
2004-10-08$6.60$6.60515
2004-10-07$6.60$6.60355
2004-10-06$6.60$6.60885
2004-10-05$6.40$6.40425
2004-10-04$6.40$6.40965
2004-10-01$6.40$6.40870
2004-09-30$6.60$6.60195
2004-09-29$6.80$6.80385
2004-09-28$6.40$6.403,665
2004-09-27$7.20$7.201,910
2004-09-24$7.40$7.4014,220
2004-09-23$6.80$6.80185
2004-09-22$6.60$6.602,665
2004-09-21$6.60$6.602,065
2004-09-20$6.40$6.401,465
2004-09-17$6.40$6.401,470
2004-09-16$6.60$6.60645
2004-09-15$6.20$6.20855
2004-09-14$6.60$6.6025
2004-09-13$6.60$6.60750
2004-09-10$6.60$6.601,265
2004-09-09$6.20$6.202,375
2004-09-08$7.00$7.0040
2004-09-07$6.80$6.80830
2004-09-03$6.20$6.20445
2004-09-02$7.00$7.002,230
2004-09-01$6.80$6.80145
2004-08-31$6.40$6.40555
2004-08-30$6.40$6.40240
2004-08-27$6.00$6.00725
2004-08-26$6.80$6.80870
2004-08-25$6.60$6.60545
2004-08-24$6.40$6.40205
2004-08-23$6.40$6.401,350
2004-08-20$7.00$7.0065
2004-08-19$7.00$7.00545
2004-08-18$7.00$7.00185
2004-08-17$6.80$6.801,315
2004-08-16$7.00$7.001,330
2004-08-13$6.60$6.601,295
2004-08-12$6.60$6.605,080
2004-08-11$6.00$6.00345
2004-08-10$6.20$6.20450
2004-08-09$6.00$6.002,465
2004-08-06$6.00$6.003,245
2004-08-05$6.80$6.803,350
2004-08-04$5.40$5.407,110
2004-08-03$5.60$5.602,155
2004-08-02$5.80$5.801,630
2004-07-30$5.60$5.601,270
2004-07-29$5.20$5.204,925
2004-07-28$5.20$5.201,310
2004-07-27$5.00$5.001,380
2004-07-26$5.00$5.002,170
2004-07-23$5.00$5.001,565
2004-07-22$5.40$5.40490
2004-07-21$5.40$5.401,415
2004-07-20$4.80$4.801,930
2004-07-19$5.20$5.201,915
2004-07-16$5.40$5.40955
2004-07-15$5.60$5.602,065
2004-07-14$5.40$5.4013,015
2004-07-13$5.60$5.604,745
2004-07-12$5.80$5.805,365
2004-07-09$6.00$6.006,495
2004-07-08$5.80$5.806,160
2004-07-07$6.00$6.007,890
2004-07-06$6.60$6.603,940
2004-07-02$6.20$6.204,755
2004-07-01$6.00$6.001,315
2004-06-30$5.80$5.803,120
2004-06-29$6.00$6.002,300
2004-06-28$5.80$5.805,525
2004-06-25$6.40$6.405,470
2004-06-24$5.80$5.803,760
2004-06-23$6.80$6.801,390
2004-06-22$6.60$6.604,235
2004-06-21$6.40$6.404,150
2004-06-18$6.80$6.806,325
2004-06-17$6.80$6.805,940
2004-06-16$6.60$6.608,100
2004-06-15$7.60$7.601,440
2004-06-14$7.60$7.602,450
2004-06-10$7.60$7.60845
2004-06-09$8.00$8.001,885
2004-06-08$8.00$8.002,280
2004-06-07$8.40$8.4023,150
2004-06-04$7.40$7.405,365
2004-06-03$8.00$8.006,675
2004-06-02$8.20$8.2014,590
2004-06-01$8.60$8.6019,435
2004-05-28$8.00$8.005,965
2004-05-27$7.80$7.8010,315
2004-05-26$7.00$7.0016,425
2004-05-25$6.00$6.0023,715
2004-05-24$6.00$6.0016,880
2004-05-21$7.40$7.4024,335
2004-05-20$9.20$9.2030,625
2004-05-19$11.60$11.6018,165
2004-05-18$17.40$17.406,105
2004-05-17$31.00$31.00465
2004-05-14$31.80$31.80295
2004-05-13$34.60$34.6025
2004-05-12$34.80$34.80260
2004-05-11$32.00$32.00255
2004-05-10$31.80$31.80385
2004-05-07$30.20$30.20695
2004-05-06$31.20$31.20325
2004-05-05$32.00$32.00640
2004-05-04$30.00$30.00340
2004-05-03$30.00$30.00360
2004-04-30$29.80$29.802,575
2004-04-29$32.80$32.801,100
2004-04-28$34.60$34.60505
2004-04-27$34.60$34.60590
2004-04-26$34.60$34.601,775
2004-04-23$31.80$31.803,510
2004-04-22$34.20$34.20655
2004-04-21$35.00$35.001,320
2004-04-20$34.80$34.80685
2004-04-19$35.00$35.00950
2004-04-16$35.00$35.001,820
2004-04-15$37.00$37.00705
2004-04-14$39.00$39.00975
2004-04-13$39.20$39.201,155
2004-04-12$41.00$41.002,785
2004-04-08$41.60$41.601,835
2004-04-07$38.60$38.602,295
2004-04-06$38.00$38.001,875
2004-04-05$36.60$36.601,785
2004-04-02$35.60$35.607,230
2004-04-01$37.00$37.004,710
2004-03-31$37.00$37.006,875
2004-03-30$34.00$34.00515
2004-03-29$34.60$34.601,845
2004-03-26$33.60$33.60910
2004-03-25$32.80$32.801,085
2004-03-24$32.00$32.002,260
2004-03-23$34.00$34.00925
2004-03-22$37.00$37.00435
2004-03-19$37.80$37.80185
2004-03-18$38.00$38.00280
2004-03-17$35.80$35.80210
2004-03-16$38.40$38.40615
2004-03-15$37.00$37.001,995
2004-03-12$40.00$40.002,130
2004-03-11$34.40$34.402,115
2004-03-10$35.40$35.401,300
2004-03-09$39.80$39.80215
2004-03-08$40.00$40.00375
2004-03-05$40.00$40.001,355
2004-03-04$44.00$44.001,640
2004-03-03$44.80$44.801,500
2004-03-02$40.80$40.801,005
2004-03-01$39.60$39.60490
2004-02-27$42.20$42.201,155
2004-02-26$38.40$38.4095
2004-02-25$38.60$38.60440
2004-02-24$40.00$40.00585
2004-02-23$38.20$38.20570
2004-02-20$40.00$40.00825
2004-02-19$41.00$41.003,670
2004-02-18$44.00$44.00955
2004-02-17$45.80$45.80680
2004-02-13$46.00$46.001,085
2004-02-12$47.80$47.802,435
2004-02-11$45.60$45.6019,560
2004-02-10$41.40$41.402,390
2004-02-09$41.40$41.401,730
2004-02-06$40.20$40.20725
2004-02-05$43.00$43.00230
2004-02-04$41.60$41.601,525
2004-02-03$42.00$42.003,125
2004-02-02$42.20$42.20875
2004-01-30$40.80$40.802,265
2004-01-29$43.80$43.804,555
2004-01-28$43.00$43.004,830
2004-01-27$47.00$47.001,300
2004-01-26$49.60$49.601,830
2004-01-23$52.60$52.602,960
2004-01-22$52.00$52.004,140
2004-01-21$52.20$52.205,740
2004-01-20$48.00$48.0010,005
2004-01-16$40.00$40.009,295
2004-01-15$32.60$32.601,345
2004-01-14$33.00$33.00970
2004-01-13$34.00$34.001,815
2004-01-12$33.80$33.802,325
2004-01-09$33.60$33.602,075
2004-01-08$37.00$37.005,655
2004-01-07$33.60$33.608,045
2004-01-06$28.80$28.8015,150
2004-01-05$23.40$23.402,065
2004-01-02$23.00$23.001,205