Ecopetrol S.A. American Depositary Shares (EC)
EC moved a median of -0.01% 30 minutes after news, and -0.10% by the close. How EC actually reacts to news — the realized, point-in-time move the market made, measured across 499 labeled events over the last three years with zero look-ahead.
EC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.04% | 52% | 499 |
| 30-min | -0.01% | 47% | 499 |
| 60-min | -0.08% | 45% | 499 |
| to close | -0.10% | 47% | 496 |
| Middle 50% of EC reactions | -0.56% to +0.76% |
|---|---|
| Median reaction (30-min) | -0.01% |
| Measured reactions | 499 |
Half of all Ecopetrol S.A. American Depositary Shares news events land between -0.56% and +0.76% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How EC reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 18 | +0.72% | 67% | +2.22% |
| Analyst downgrades | 18 | -0.85% | 33% | -0.88% |
| Rating reiterations | 19 | +0.05% | 63% | -0.06% |
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 EC ranks against every other measured name →
That’s how EC usually reacts — get an email when it moves on news →Email me when EC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to EC's baseline. Nothing else.
Recent EC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Ecopetrol Continues Advancing Its Transformation Journey with the Appointment of Its New Corporate Compliance Officer | Press release | PR Newswire | -1.29% | -1.06% | |
| Form 6-K ECOPETROL S.A. For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | -1.29% | -1.06% | |
| Ecopetrol Advances Its Transformation with Changes to Its Senior Management Team | Press release | PR Newswire | +0.30% | -0.67% | |
| Ecopetrol Announces Changes to Senior Management | Press release | PR Newswire | +0.30% | -0.67% | |
| Ecopetrol Group, in coordination with the National Government, receives payment of the Fuel Price Stabilization Fund (FEPC, by its Spanish acronym) receivable corresponding to the third and fourth quarters of 2025 | Press release | PR Newswire | +0.30% | -0.67% | |
| Form 6-K ECOPETROL S.A. For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.30% | -0.67% | |
| Ecopetrol's Board of Directors Unanimously Appoints Joaquín Gutiérrez Caballero as the Company's New Chief Executive Officer | Press release | PR Newswire | +0.99% | +2.66% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.99% | +2.66% | |
| Form SD ECOPETROL S.A. | SEC filing · Form SD | SEC EDGAR | -0.68% | -2.05% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.41% | +2.33% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.13% | -2.84% | |
| Resolutions Adopted by the Extraordinary Shareholders' Meeting Held on September 15, 2026 | Press release | PR Newswire | -0.60% | -2.12% | |
| Ecopetrol Reports Changes in Senior Management | Press release | PR Newswire | +0.00% | -0.06% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +1.30% | +3.28% | |
| Updates to the Board of Directors of Ecopetrol S.A. | Press release | PR Newswire | +0.16% | +0.06% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +1.00% | +1.20% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.63% | +2.71% | |
| Ecopetrol Announces Changes in Senior Management | Press release | PR Newswire | -0.63% | +2.71% | |
| Ecopetrol announces the implementation of measures designed to ensure the proper representation of Shareholders at the Extraordinary Meeting scheduled for September 15, 2026 | Press release | PR Newswire | -0.36% | +0.18% | |
| Ecopetrol Announces the Nomination of Candidates for Seats 7, 8 and 9 and the Formalization of the Slate of Candidates for the Board of Directors of Ecopetrol S.A. | Press release | PR Newswire | +0.09% | +0.33% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.18% | -1.83% | |
| GENERAL SHAREHOLDERS' MEETING OF ECOPETROL S.A. | Press release | PR Newswire | -0.33% | +0.00% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.36% | -0.06% | |
| Ecopetrol Announces Changes in Senior Management | Press release | PR Newswire | +0.36% | -0.06% | |
| Ecopetrol Announces the Second Convening of Bondholders' Meetings for Domestic Public Debt Bonds | Press release | PR Newswire | +0.36% | -0.06% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.36% | -0.06% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.84% | -0.17% | |
| Ecopetrol Completes Acquisition of a Controlling 51% Stake in Brava Energia S.A. and Strengthens Its Growth Platform in Brazil | Press release | PR Newswire | -0.92% | -0.51% | |
| Ecopetrol Reports Results of Bondholders' Meetings for Domestic Public Debt Bonds Held at First Call | Press release | PR Newswire | +0.84% | -0.17% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.92% | -0.51% | |
| Ecopetrol Announces the Convening of Bondholders' Meetings for Domestic Public Debt Bonds on August 18 | Press release | PR Newswire | +0.88% | — | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.64% | -2.56% | |
| Ecopetrol Announces Successful Auction Result for the Acquisition of Approximately 25% of the Share Capital of Brava Energia S.A. | Press release | PR Newswire | -0.09% | +4.57% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | +4.57% | |
| Form 6-K ECOPETROL S.A. For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +1.55% | +1.05% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | -1.28% | +0.97% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.06% | +1.09% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.92% | -1.78% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +1.49% | +2.42% | |
| Ecopetrol Continues to Implement Monitoring and Protection Measures in Response to Cybersecurity Incident | Press release | PR Newswire | +1.49% | +2.42% | |
| Ecopetrol Resumes the Tender Offer in Brazil to Complete the Acquisition of a Controlling Equity Stake in Brava Energia S.A. | Press release | PR Newswire | +1.49% | +2.42% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.44% | +0.63% | |
| Ecopetrol Reports Cybersecurity Incident | Press release | PR Newswire | +0.44% | +0.63% | |
| Ecopetrol Reports CVM Decision on Appeal Related to the Tender Offer | Press release | PR Newswire | +1.20% | -0.13% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +1.20% | -0.13% | |
| Ecopetrol announces the dates for the presentation of its second quarter 2026 results report and conference call | Press release | PR Newswire | +1.20% | -0.13% | |
| Ecopetrol Group receives payment for 100% of the FEPC account receivable balance for the second quarter of 2025 | Press release | PR Newswire | +0.11% | +2.85% | |
| Form 6-K ECOPETROL S.A. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.11% | +2.85% | |
| Form 6-K ECOPETROL S.A. For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +0.57% | -0.95% | |
| S&P Global Ratings Affirms Ecopetrol's Global and Stand-Alone Credit Ratings | Press release | PR Newswire | +0.57% | -0.95% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the EC section they belong to.
Where else EC is measured.
EC earnings → · Analyst actions → · SEC filings →
Other Energy names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| GasLog Partners LP Common Units representing limited partnership interests (GLOP) | 511 | 0.00% | 48% |
| Chevron Corporation (CVX) | 506 | +0.11% | 57% |
| DNOW Inc. (DNOW) | 494 | -0.04% | 46% |
| SLB Limited Common Shares (SLB) | 485 | -0.03% | 46% |
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 Energy names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Ecopetrol S.A. American Depositary Shares's median reaction calculated?
Every labeled EC 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 499 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. 47% of EC'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 EC'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.