Weibo Corporation - American Depositary Shares (WB) by event type
WB moves most on analyst downgrades — a median of -1.23% at 30 minutes across 20 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the WB overview →
How WB reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 2,536 of 2,717 | 12 | -0.78% | 33% | -0.60% |
| Analyst downgrades 2,455 of 2,603 | 20 | -1.23% | 10% | -1.38% |
| Rating reiterations 790 of 3,522 | 12 | +0.11% | 58% | -0.02% |
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 WB usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Rating reiterations → · WB overview →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| FSD Pharma Inc. - Class B Subordinate Voting Shares (HUGE) | 110 | 0.00% | 44% |
| SOLITRON DEVICES INC (SODI) | 110 | 0.00% | 20% |
| IEH CORP (IEHC) | 109 | 0.00% | 16% |
| Vecima Networks Inc (VCM_TSE) | 108 | 0.00% | 32% |
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.