Ecopetrol S.A. American Depositary Shares (EC) by event type
EC moves most on analyst downgrades — a median of -0.85% at 30 minutes across 18 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the EC overview →
How EC reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 219 of 2,717 | 18 | +0.72% | 67% | +2.22% |
| Analyst downgrades 2,379 of 2,603 | 18 | -0.85% | 33% | -0.88% |
| Rating reiterations 1,154 of 3,522 | 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 rank under each event type orders every name measured for it by median 30-min reaction, most positive first — so a low rank on a downgrade means this name falls harder than most, not that it moves less. Names with an identical median share a rank; a name the cross-section does not carry shows no rank rather than a guessed one. 2 further classes were observed with fewer than 10 measured events and are not published.
That’s how EC usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Rating reiterations → · EC overview →
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.