Analyst downgrades across 2,583 names
Analyst downgrades were measured across 2,583 names over the last three years; 50% of them have a positive median reaction at 30 minutes. An analyst cuts their rating. Whether the stock actually drops — and for how long — is an empirical question.
Analyst downgrades do not move one way.
Counter-intuitively, NVDA and TSLA downgrades drifted up intraday over the window; NVDA still closed lower (median −0.76%). The first move and the close often disagree.
Across all 2,583 measured names, 50% have a positive median 30-minute reaction and 140 have a median of exactly 0.00%. No single median is published for the class: with the names split that evenly, the middle of that distribution is zero, and it is zero on all six of these pages.
The strongest and weakest reactions to analyst downgrades, among the 63 best-measured names.
Strongest median 30-min reaction
| Ticker | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| SEDG | 108 | +2.00% | 74% | +2.46% |
| PINS | 53 | +1.25% | 70% | +2.34% |
| PLUG | 55 | +1.15% | 53% | +0.72% |
| DUOL | 52 | +0.93% | 60% | +1.56% |
| HUBS | 63 | +0.89% | 73% | +2.37% |
| TTD | 107 | +0.89% | 62% | +1.27% |
| MBLY | 60 | +0.68% | 60% | +0.29% |
| SWKS | 58 | +0.67% | 66% | +0.50% |
| ENPH | 90 | +0.62% | 63% | +0.11% |
| GTLB | 53 | +0.56% | 70% | +1.00% |
| CMCSA | 61 | +0.52% | 71% | +0.45% |
| CMA | 56 | +0.50% | 64% | +1.04% |
Weakest median 30-min reaction
Last 3 years, pulled 2026-08-31. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. Both tables rank only the 63 names with at least 50 measured analyst downgrades; the full population publishes every name with at least 10, where a handful of events can put a name at either extreme.
Email me when a name reacts to analyst downgrades.
One email per qualifying move — the headline, the measured reaction, and how it compares to that name's baseline. Nothing else.
All six event types, side by side →
Other event types: Analyst upgrades → · Coverage initiations → · Rating reiterations → · Price-target raises → · Price-target cuts → · Every measured ticker →