Cogent Communications (CCOI) Stock Chart & Stock Price History $71.32 -1.75 (-2.39%) Closing price 04:00 PM EasternExtended Trading$69.65 -1.67 (-2.34%) As of 04:20 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends Cogent Communications Stock Price Performance 5 Day Performance-10.97%1 Month Performance-7.45%3 Month Performance-11.52%6 Month Performance+3.26%Year-To-Date Performance-7.46%1 Year Performance-9.20% Receive CCOI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cogent Communications and its competitors with MarketBeat's FREE daily newsletter. Email Address CCOI Stock Chart for Monday, March, 3, 2025 CCOI Chart by TradingView Cogent Communications Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization02/28/2025$72.46$73.07+0.84%$73.50$70.35728,154 shs$3.58 billion02/27/2025$80.11$72.46-9.55%$79.50$71.32973,078 shs$3.55 billion02/26/2025$79.22$80.11+1.12%$80.45$79.00389,653 shs$3.93 billion02/25/2025$79.10$79.22+0.15%$79.82$77.91319,986 shs$3.88 billion02/24/2025$79.93$79.10-1.04%$80.13$77.65328,307 shs$3.88 billion02/21/2025$81.45$79.93-1.87%$82.00$79.54300,536 shs$3.92 billion02/20/2025$83.44$81.45-2.38%$83.19$81.37239,864 shs$3.99 billion02/19/2025$83.40$83.44+0.05%$84.06$82.86249,075 shs$4.09 billion02/18/2025$82.00$83.40+1.70%$83.78$81.83245,062 shs$4.09 billion02/17/2025$82.00$82.00$82.78$81.82161,759 shs$4.02 billion Get the Latest News and Ratings for CCOI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Cogent Communications and its competitors with MarketBeat's FREE daily newsletter. 02/14/2025$82.66$82.00-0.80%$82.78$81.82161,759 shs$4.02 billion02/13/2025$81.92$82.66+0.90%$82.90$80.95157,220 shs$4.05 billion02/12/2025$81.89$81.92+0.04%$82.60$81.23278,033 shs$4.02 billion02/11/2025$82.38$81.89-0.59%$82.81$81.48276,376 shs$4.01 billion02/10/2025$80.39$82.38+2.48%$82.44$80.24334,489 shs$4.04 billion02/07/2025$79.58$80.39+1.02%$80.71$78.72381,712 shs$3.94 billion02/06/2025$79.18$79.58+0.51%$79.80$78.75226,055 shs$3.90 billion02/05/2025$76.18$79.18+3.94%$79.23$75.82271,373 shs$3.88 billion02/04/2025$77.06$76.18-1.14%$77.66$75.80327,549 shs$3.73 billion02/03/2025$75.34$77.06+2.28%$77.18$73.69369,277 shs$3.78 billion Related Companies IRDM Stock Chart ASTS Stock Chart SATS Stock Chart CALX Stock Chart GOGO Stock Chart SPIR Stock Chart TSAT Stock Chart BZFD Stock Chart UCL Stock Chart KORE Stock Chart Receive CCOI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cogent Communications and its competitors with MarketBeat's FREE daily newsletter. 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