Cogent Communications Holdings, Inc. (CCOI)
NASDAQ: CCOI · Real-Time Price · USD
9.63
-0.74 (-7.14%)
Aug 20, 2026, 11:36 AM EDT - Market open

CCOI Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Aug 20, 202610.2510.329.9210.00--3.52%258,951
Aug 19, 20269.5910.379.0310.3710.372.32%2,367,677
Aug 18, 202610.7610.769.7510.1310.13-5.77%1,756,544
Aug 17, 202611.0811.1510.6410.7510.75-4.95%1,285,960
Aug 14, 202610.1711.4710.0511.3111.319.28%2,260,506
Aug 13, 202610.0010.499.5510.3510.350.98%2,205,093
Aug 12, 202611.0411.2210.2410.2510.25-5.27%1,509,860
Aug 11, 202610.2710.859.9810.8210.825.05%1,728,809
Aug 10, 202610.0010.719.4210.3010.303.83%2,523,346
Aug 7, 202610.9711.149.009.929.92-9.07%4,205,170
Aug 6, 202613.3713.4910.1010.9110.91-15.23%3,288,297
Aug 5, 202613.0313.1512.3612.8712.87-3.23%1,458,268
Aug 4, 202613.2213.5012.9313.3013.300.53%1,083,894
Aug 3, 202613.6513.7713.2213.2313.23-2.00%1,415,357
Jul 31, 202613.2213.5312.7813.5013.501.96%962,589
Jul 30, 202612.5613.3112.4313.2413.244.33%1,012,528
Jul 29, 202612.7712.8711.8212.6912.69-2.01%1,407,529
Jul 28, 202612.2412.9812.1512.9512.955.97%997,260
Jul 27, 202611.9712.3811.8512.2212.222.95%999,725
Jul 24, 202612.8012.9511.8311.8711.87-7.98%948,626
Jul 23, 202612.6113.0612.3812.9012.90-0.23%981,525
Jul 22, 202613.0713.2812.7612.9312.931.81%835,545
Jul 21, 202612.5713.1112.4612.7012.702.42%1,099,694
Jul 20, 202611.0312.5310.9612.4012.4013.04%1,525,925
Jul 17, 202611.4211.5710.9310.9710.97-6.32%1,549,146
Jul 16, 202612.5012.9411.6611.7111.71-6.47%926,949
Jul 15, 202612.3413.1312.2512.5212.522.20%796,567
Jul 14, 202612.9913.2811.9012.2512.25-5.26%1,133,196
Jul 13, 202612.7513.4512.7512.9312.932.54%1,173,167
Jul 10, 202612.7913.0612.5512.6112.61-0.24%795,177
Jul 9, 202612.3412.6712.1512.6412.642.27%931,344
Jul 8, 202611.4812.6911.4312.3612.366.05%1,275,991
Jul 7, 202612.1512.4511.6511.6611.66-4.35%1,342,981
Jul 6, 202613.2013.4812.1212.1912.19-6.20%1,424,850
Jul 2, 202614.4914.6812.5212.9912.99-9.03%2,189,001
Jul 1, 202613.9314.6013.9114.2814.282.88%1,446,003
Jun 30, 202614.0114.4613.2313.8813.885.63%2,193,683
Jun 29, 202613.6913.8412.3313.1413.14-2.01%1,978,875
Jun 26, 202613.0213.5012.8413.4113.411.90%2,535,758
Jun 25, 202613.4813.6613.0213.1613.16-2.66%1,906,366
Jun 24, 202614.3714.4413.3313.5213.52-4.52%1,455,545
Jun 23, 202614.5215.2814.0014.1614.16-3.41%1,126,121
Jun 22, 202614.0415.8813.6914.6614.663.31%1,911,315
Jun 18, 202615.0715.2414.1314.1914.19-2.87%1,918,020
Jun 17, 202615.9016.0714.5714.6114.61-8.97%1,120,739
Jun 16, 202616.4616.9716.0016.0516.05-2.43%927,924
Jun 15, 202616.0417.6516.0016.4516.453.72%1,238,758
Jun 12, 202615.0915.9114.6115.8615.866.16%1,119,343
Jun 11, 202614.4615.0914.4114.9414.943.32%966,838
Jun 10, 202615.7516.0514.4314.4614.46-8.54%1,076,323