Cogent Communications Holdings, Inc. (CCOI)
NASDAQ: CCOI · Real-Time Price · USD
4.450
+0.470 (11.81%)
At close: Nov 9, 2026, 4:00 PM EST
4.421
-0.029 (-0.65%)
After-hours: Nov 9, 2026, 7:57 PM EST
CCOI Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 9, 2026 | 4.06 | 4.54 | 3.85 | 4.45 | 4.45 | 11.81% | 6,122,559 |
| Nov 6, 2026 | 4.57 | 4.57 | 3.56 | 3.98 | 3.98 | -15.14% | 5,172,383 |
| Nov 5, 2026 | 6.34 | 6.47 | 4.52 | 4.69 | 4.69 | -30.93% | 4,105,928 |
| Nov 4, 2026 | 6.09 | 7.00 | 6.02 | 6.79 | 6.79 | 14.89% | 3,257,017 |
| Nov 3, 2026 | 6.05 | 6.22 | 5.90 | 5.91 | 5.91 | -2.31% | 1,853,641 |
| Nov 2, 2026 | 6.75 | 6.79 | 6.03 | 6.05 | 6.05 | -10.24% | 2,188,470 |
| Oct 30, 2026 | 7.63 | 7.76 | 6.61 | 6.74 | 6.74 | -13.14% | 1,995,280 |
| Oct 29, 2026 | 7.67 | 7.88 | 7.53 | 7.76 | 7.76 | 1.57% | 1,462,484 |
| Oct 28, 2026 | 7.54 | 7.88 | 7.39 | 7.64 | 7.64 | 2.28% | 1,641,351 |
| Oct 27, 2026 | 7.35 | 7.90 | 7.23 | 7.47 | 7.47 | 1.49% | 2,227,655 |
| Oct 26, 2026 | 7.55 | 7.67 | 7.19 | 7.36 | 7.36 | -1.60% | 1,052,901 |
| Oct 23, 2026 | 7.24 | 7.52 | 7.04 | 7.48 | 7.48 | 2.47% | 1,139,230 |
| Oct 22, 2026 | 7.39 | 7.63 | 7.13 | 7.30 | 7.30 | -1.88% | 1,421,521 |
| Oct 21, 2026 | 7.84 | 7.89 | 7.29 | 7.44 | 7.44 | -3.63% | 1,326,160 |
| Oct 20, 2026 | 7.75 | 8.05 | 7.51 | 7.72 | 7.72 | -0.52% | 1,002,688 |
| Oct 19, 2026 | 8.06 | 8.17 | 7.55 | 7.76 | 7.76 | -3.84% | 1,279,100 |
| Oct 16, 2026 | 8.14 | 8.14 | 7.06 | 8.07 | 8.07 | -3.35% | 4,598,987 |
| Oct 15, 2026 | 7.61 | 8.38 | 7.56 | 8.35 | 8.35 | 8.16% | 1,323,122 |
| Oct 14, 2026 | 8.39 | 8.39 | 7.66 | 7.72 | 7.72 | -9.92% | 2,003,285 |
| Oct 13, 2026 | 8.33 | 8.84 | 8.29 | 8.57 | 8.57 | 2.02% | 1,226,194 |
| Oct 12, 2026 | 8.44 | 8.68 | 8.30 | 8.40 | 8.40 | -1.64% | 1,161,640 |
| Oct 9, 2026 | 9.53 | 9.69 | 8.33 | 8.54 | 8.54 | -10.67% | 1,381,776 |
| Oct 8, 2026 | 9.81 | 9.82 | 9.12 | 9.56 | 9.56 | -3.82% | 2,101,295 |
| Oct 7, 2026 | 9.25 | 10.31 | 9.09 | 9.94 | 9.94 | 6.77% | 1,647,607 |
| Oct 6, 2026 | 8.95 | 9.44 | 8.85 | 9.31 | 9.31 | 4.84% | 2,147,913 |
| Oct 5, 2026 | 8.44 | 8.92 | 7.99 | 8.88 | 8.88 | 4.96% | 2,433,965 |
| Oct 2, 2026 | 8.37 | 8.59 | 8.12 | 8.46 | 8.46 | 2.79% | 2,479,559 |
| Oct 1, 2026 | 7.83 | 8.51 | 7.42 | 8.23 | 8.23 | 5.65% | 3,038,782 |
| Sep 30, 2026 | 7.40 | 7.95 | 7.13 | 7.79 | 7.79 | 6.13% | 2,181,961 |
| Sep 29, 2026 | 7.46 | 7.60 | 7.25 | 7.34 | 7.34 | -1.21% | 1,396,431 |
| Sep 28, 2026 | 7.59 | 7.69 | 7.28 | 7.43 | 7.43 | -3.38% | 1,717,745 |
| Sep 25, 2026 | 7.64 | 8.04 | 7.44 | 7.69 | 7.69 | 0.65% | 1,752,922 |
| Sep 24, 2026 | 8.11 | 8.23 | 7.61 | 7.64 | 7.64 | -6.03% | 2,563,023 |
| Sep 23, 2026 | 9.27 | 9.27 | 8.10 | 8.13 | 8.13 | -12.67% | 2,082,446 |
| Sep 22, 2026 | 9.34 | 9.62 | 9.15 | 9.31 | 9.31 | 0.22% | 1,476,042 |
| Sep 21, 2026 | 9.15 | 9.43 | 8.60 | 9.29 | 9.29 | 3.11% | 1,696,808 |
| Sep 18, 2026 | 9.19 | 9.19 | 8.67 | 9.01 | 9.01 | -2.17% | 8,983,487 |
| Sep 17, 2026 | 8.77 | 9.24 | 8.56 | 9.21 | 9.21 | 6.23% | 2,170,627 |
| Sep 16, 2026 | 9.22 | 9.51 | 8.59 | 8.67 | 8.67 | -6.22% | 2,223,680 |
| Sep 15, 2026 | 9.12 | 9.30 | 8.90 | 9.25 | 9.25 | -0.80% | 1,641,924 |
| Sep 14, 2026 | 9.12 | 9.42 | 8.93 | 9.32 | 9.32 | -0.11% | 1,460,596 |
| Sep 11, 2026 | 9.23 | 9.79 | 9.04 | 9.33 | 9.33 | 2.64% | 1,924,662 |
| Sep 10, 2026 | 9.20 | 9.37 | 8.60 | 9.09 | 9.09 | -2.57% | 2,168,721 |
| Sep 9, 2026 | 9.66 | 9.70 | 9.00 | 9.33 | 9.33 | -3.22% | 2,255,069 |
| Sep 8, 2026 | 9.98 | 10.16 | 9.46 | 9.64 | 9.64 | -4.08% | 2,638,447 |
| Sep 4, 2026 | 10.02 | 10.39 | 9.85 | 10.05 | 10.05 | 0.70% | 1,322,089 |
| Sep 3, 2026 | 10.22 | 10.22 | 9.35 | 9.98 | 9.98 | -2.35% | 1,851,915 |
| Sep 2, 2026 | 9.00 | 10.42 | 8.94 | 10.22 | 10.22 | 13.43% | 2,646,194 |
| Sep 1, 2026 | 9.42 | 9.54 | 8.88 | 9.01 | 9.01 | -5.56% | 1,612,568 |
| Aug 31, 2026 | 9.42 | 9.69 | 9.19 | 9.54 | 9.54 | 0.63% | 1,618,807 |