Cogent Communications Holdings, Inc. (CCOI)
CCOI moved a median of -0.16% 30 minutes after news, and +0.25% by the close. How CCOI actually reacts to news — the realized, point-in-time move the market made, measured across 1,375 labeled events over the last three years with zero look-ahead.
CCOI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.05% | 45% | 1,346 |
| 30-min | -0.16% | 43% | 1,350 |
| 60-min | -0.21% | 44% | 1,350 |
| to close | +0.25% | 53% | 1,317 |
| Middle 50% of CCOI reactions | -1.25% to +0.70% |
|---|---|
| Median reaction (30-min) | -0.16% |
| Measured reactions | 1,375 |
Half of all Cogent Communications Holdings, Inc. news events land between -1.25% and +0.70% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How CCOI reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 13 | +0.34% | 62% | +0.66% |
| Analyst downgrades | 28 | -0.17% | 50% | -2.09% |
| Rating reiterations | 52 | +0.08% | 52% | -0.06% |
| Price-target cuts | 25 | +0.06% | 52% | -0.20% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 2 further classes were observed with fewer than 10 measured events and are not published. See how CCOI ranks against every other measured name →
That’s how CCOI usually reacts — get an email when it moves on news →Email me when CCOI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CCOI's baseline. Nothing else.
Recent CCOI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Cogent Communications Holdings, Inc. (CCOI) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.13% | +7.05% | |
| Cogent Communications to Host Third Quarter 2026 Earnings Call on November 5, 2026 | Press release | PR Newswire | -2.62% | -7.99% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Cogent Communications Holdings, Inc. (CCOI) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +0.70% | -0.47% | |
| Cogent Communications Holdings, Inc. (CCOI) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -1.60% | +1.70% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Cogent Communications Holdings, Inc. (CCOI) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.00% | -0.85% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Cogent Communications Holdings, Inc. (CCOI) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.14% | -0.81% | |
| Lifshitz Law PLLC Announces Investigations of Cogent Communications Holdings, Inc. (NASDAQ: CCOI), EquipmentShare, Inc. (NASDAQ: EQPT), Mircovast Holdings, Inc. (NASDAQ: MVST), and Primoris Services Corporation (NYSE: PRIM) | Press release | ACCESS Newswire | -0.32% | -0.32% | |
| Kaplan Fox Reminds Cogent Communications Holdings, Inc. (NASDAQ: CCOI) Investors to Protect Their Rights Before the Deadline on September 21, 2026 | Press release | GlobeNewswire | +0.99% | +2.65% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -0.91% | +5.02% | |
| Kaplan Fox Urges Investors of Cogent Communications Holdings, Inc. (NASDAQ: CCOI) to Seek a Leadership Role Before September 21, 2026 | Press release | GlobeNewswire | +0.00% | -7.96% | |
| Kaplan Fox Encourages Cogent Communications Holdings, Inc. (NASDAQ: CCOI) Investors Seeking Recovery to Contact the Firm Before September 21, 2026 | Press release | GlobeNewswire | -0.06% | +2.19% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -1.19% | +1.08% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -2.15% | -2.35% | |
| Cogent Communications CEO to Present at Three Upcoming Conferences | Press release | PR Newswire | -0.69% | -4.50% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -0.11% | +1.27% | |
| Kaplan Fox Reminds Cogent Communications Holdings, Inc. (NASDAQ: CCOI) Investors to Seek a Leadership Role Before Deadline on September 21, 2026 | Press release | GlobeNewswire | -0.12% | -4.16% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -1.30% | -3.11% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | +3.19% | +4.51% | |
| Kaplan Fox Urges Cogent Communications Holdings, Inc. (NASDAQ: CCOI) Investors to Contact the Firm Before the Deadline on September 21, 2026 | Press release | GlobeNewswire | +3.19% | +4.51% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -1.44% | -9.12% | |
| Saragon Launches as New U.S. Data Center Company Purpose-Built for AI Inference and Edge Colocation | Press release | Business Wire | -1.36% | +8.08% | |
| Attention Long-Term Shareholders of Cogent Communications Holdings, Inc. (NASDAQ: CCOI); Primoris Services Corporation (NYSE: PRIM); PROCEPT BioRobotics Corporation (NASDAQ: PRCT); and Roblox Corporation (NYSE: RBLX): Grabar Law Office is Investigating Cl | Press release | GlobeNewswire | -2.25% | -5.15% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | +0.60% | -2.98% | |
| Important Notice to Long-Term Shareholders of Cogent Communications Holdings, Inc. (NASDAQ: CCOI); Primoris Services Corporation (NYSE: PRIM); Roblox Corporation (NYSE: RBLX); and Symbotic Inc. (NASDAQ: SYM): Grabar Law Office is Investigating Claims on Y | Press release | GlobeNewswire | +0.60% | -2.98% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | +0.65% | +3.50% | |
| Kaplan Fox Encourages Cogent Communications Holdings, Inc. (NASDAQ: CCOI) Investors to Contact the Firm Before the Deadline on September 21, 2026 for a Leadership Role | Press release | GlobeNewswire | -0.05% | +3.55% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | -4.41% | -18.40% | |
| Cogent Communications Reports Second Quarter 2026 Results | Press release | PR Newswire | -4.41% | -18.40% | |
| Form 10-Q COGENT COMMUNICATIONS For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.08% | -12.58% | |
| Form 8-K COGENT COMMUNICATIONS For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -4.41% | -18.40% | |
| Important Notice to Long-Term Shareholders of Cogent Communications Holdings, Inc. (NASDAQ: CCOI); Hub Group, Inc. (NASDAQ: HUBG); Primoris Services Corporation (NYSE: PRIM); and PROCEPT BioRobotics Corporation (NASDAQ: PRCT): Grabar Law Office is Investi | Press release | GlobeNewswire | -1.38% | -1.23% | |
| Important Notice to Long-Term Shareholders of Cogent Communications Holdings, Inc. (NASDAQ: CCOI); EquipmentShare.com, Inc. (NASDAQ: EQPT); Insulet Corporation (NASDAQ: PODD); and PROCEPT BioRobotics Corporation (NASDAQ: PRCT): Grabar Law Office is Invest | Press release | GlobeNewswire | -0.88% | -3.08% | |
| Kaplan Fox Reminds Cogent Communications Holdings, Inc. (NASDAQ: CCOI) Investors with Significant Losses to Seek a Leadership Role Before Deadline on September 21, 2026 | Press release | GlobeNewswire | +0.08% | +3.13% | |
| Important Notice to Long-Term Shareholders of Cogent Communications Holdings, Inc. (NASDAQ: CCOI); EquipmentShare.com, Inc. (NASDAQ: EQPT); Power Solutions International, Inc. (NASDAQ: PSIX); and PROCEPT BioRobotics Corporation (NASDAQ: PRCT): Grabar Law | Press release | GlobeNewswire | +0.23% | +3.04% | |
| Cogent Communications CEO to Present at Three Upcoming Conferences | Press release | PR Newswire | -4.15% | -0.63% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights - CCOI | Press release | PR Newswire | +0.25% | +2.09% | |
| Notice to Long-Term Shareholders of Cogent Communications Holdings, Inc. (NASDAQ: CCOI); EquipmentShare.com, Inc. (NASDAQ: EQPT); Photronics, Inc. (NASDAQ: PLAB); and PROCEPT BioRobotics Corporation (NASDAQ: PRCT): Grabar Law Office is Investigating Claim | Press release | GlobeNewswire | +0.50% | +2.17% | |
| Cogent Communications Holdings, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – CCOI | Press release | Business Wire | +0.25% | +2.09% | |
| Cogent Communications to Host Second Quarter 2026 Earnings Call on August 6, 2026 | Press release | PR Newswire | +1.99% | +1.46% | |
| Cogent Communications Announces Closing of Sale of 10 Data Center Facilities | Press release | PR Newswire | +1.68% | -0.93% | |
| Form 8-K COGENT COMMUNICATIONS For: Jun 29 | SEC filing · Form 8-K | SEC EDGAR | +1.68% | -0.93% | |
| Form 8-K COGENT COMMUNICATIONS For: Jun 15 | SEC filing · Form 8-K | SEC EDGAR | +1.61% | -2.49% | |
| Cogent Communications Announces Definitive Agreement to Sell 10 Data Center Facilities | Press release | PR Newswire | +1.22% | -0.94% | |
| Form 8-K COGENT COMMUNICATIONS For: May 22 | SEC filing · Form 8-K | SEC EDGAR | -1.30% | +8.32% | |
| I Squared Capital Launches U.S. AI Inference and Edge Colocation Data Center Platform With $1BN Commitment | Press release | Business Wire | +1.22% | -0.94% | |
| JVP Marks Strong Q1 2026 with Four Strategic Exits | Press release | PR Newswire | -0.26% | +2.31% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Cogent Communications Holdings, Inc. (CCOI) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -0.54% | -2.50% | |
| Cogent Communications CEO to Present at Two Upcoming Conferences | Press release | PR Newswire | -0.82% | -9.32% | |
| Cogent Communications Reports First Quarter 2026 Results | Press release | PR Newswire | +0.68% | +0.74% | |
| Form 10-Q COGENT COMMUNICATIONS For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.68% | +6.54% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CCOI section they belong to.
Where else CCOI is measured.
CCOI earnings → · Analyst actions → · SEC filings →
Other Communication Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Verizon Communications Inc. (VZ) | 1,747 | +0.03% | 53% |
| GTT Communications, Inc (GTT) | 1,438 | 0.00% | 47% |
| Charter Communications, Inc. - Class A (CHTR) | 1,306 | -0.03% | 49% |
| BOINGO WIRELESS (WIFI) | 1,174 | 0.00% | 49% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Communication Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Cogent Communications Holdings, Inc.'s median reaction calculated?
Every labeled CCOI news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 1,375 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 43% of CCOI's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does CCOI's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.