Black Stone Minerals, L.P. Common units representing limited partner interests (BSM) by event type
BSM moves most on analyst downgrades — a median of +0.28% at 30 minutes across 12 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the BSM overview →
How BSM reacts across 2 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades 638 of 2,603 | 12 | +0.28% | 67% | +0.57% |
| Rating reiterations 1,408 of 3,522 | 15 | +0.02% | 53% | +0.41% |
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. 4 further classes were observed with fewer than 10 measured events and are not published.
That’s how BSM usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst downgrades → · Rating reiterations → · BSM overview →
Other Energy names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| OCEAN RIG UDW (ORIG) | 264 | +0.04% | 52% |
| NOV Inc. (NOV) | 262 | +0.09% | 53% |
| APERGY CORP (APY) | 258 | -0.46% | 44% |
| Geopark Ltd Common Shares (GPRK) | 257 | 0.00% | 49% |
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.