Great Lakes Dredge & Dock Corporation (GLDD) by event type
GLDD moves most on analyst upgrades — a median of +0.09% at 30 minutes across 14 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the GLDD overview →
How GLDD reacts across 2 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 1,091 of 2,717 | 14 | +0.09% | 57% | +0.12% |
| Analyst downgrades 1,295 of 2,603 | 24 | 0.00% | 46% | 0.00% |
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. 3 further classes were observed with fewer than 10 measured events and are not published.
That’s how GLDD usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · GLDD overview →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ADVANCED DISPOSAL SERVICES INC (ADSW) | 336 | 0.00% | 47% |
| Blink Charging Co. (BLNK) | 336 | +0.00% | 50% |
| Werner Enterprises, Inc. (WERN) | 334 | -0.02% | 48% |
| Tutor Perini Corporation (TPC) | 333 | +0.33% | 61% |
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.