Mammoth Energy Services, Inc. (TUSK)
TUSK moved a median of -0.44% 30 minutes after news, and -0.69% by the close. How TUSK actually reacts to news — the realized, point-in-time move the market made, measured across 125 labeled events over the last three years with zero look-ahead.
TUSK’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 35% | 123 |
| 30-min | -0.44% | 36% | 125 |
| 60-min | -0.32% | 44% | 125 |
| to close | -0.69% | 42% | 122 |
| Middle 50% of TUSK reactions | -1.43% to +0.75% |
|---|---|
| Median reaction (30-min) | -0.44% |
| Measured reactions | 125 |
Half of all Mammoth Energy Services, Inc. news events land between -1.43% and +0.75% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when TUSK moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to TUSK's baseline. Nothing else.
Recent TUSK events, each with its measured reaction.
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the TUSK section they belong to.
Where else TUSK is measured.
TUSK earnings → · Analyst actions → · SEC filings →
Other Energy names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| HORIZON PETROLEUM LTD (HPL_CDNX) | 125 | 0.00% | 16% |
| Southwestern Energy Company (SWN) | 125 | +0.14% | 51% |
| In Play Oil Corp (IPO_TSE) | 114 | 0.00% | 38% |
| NGL ENERGY PARTNERS LP Common Units representing Limited Partner Interests (NGL) | 113 | +0.30% | 55% |
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.
All Energy names, measured the same way →
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How the numbers are made.
How is Mammoth Energy Services, Inc.'s median reaction calculated?
Every labeled TUSK news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 125 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 36% of TUSK's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does TUSK's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.