Greenidge Generation Holdings Inc. (GREE)
GREE moved a median of 0.00% 30 minutes after news, and -1.08% by the close. How GREE actually reacts to news — the realized, point-in-time move the market made, measured across 241 labeled events over the last three years with zero look-ahead.
GREE’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.36% | 51% | 235 |
| 30-min | 0.00% | 46% | 237 |
| 60-min | 0.00% | 46% | 237 |
| to close | -1.08% | 42% | 235 |
| Middle 50% of GREE reactions | -2.19% to +2.66% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 241 |
Half of all Greenidge Generation Holdings Inc. news events land between -2.19% and +2.66% 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 GREE moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GREE's baseline. Nothing else.
Recent GREE events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Greenidge Generation Announces $39.4 Million Capital Raise to Unlock the Value of its Power and Infrastructure Assets and Name Change to Vulcan Infrastructure and Power | Press release | ACCESS Newswire | +1.76% | +25.29% | |
| Form EFFECT Greenidge Generation | SEC filing · Form EFFECT | SEC EDGAR | -0.48% | +4.35% | |
| Form 8-K Greenidge Generation For: Jun 24 | SEC filing · Form 8-K | SEC EDGAR | -0.89% | +4.46% | |
| Form S-3/A Greenidge Generation | SEC filing · Form S-3 | SEC EDGAR | +1.70% | +2.72% | |
| Form 8-K Greenidge Generation For: May 29 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -11.73% | |
| Form 8-K Greenidge Generation For: May 18 | SEC filing · Form 8-K | SEC EDGAR | +1.46% | +8.76% | |
| Greenidge Generation Reports First Quarter 2026 Results and Advances AI/HPC Infrastructure Expansion | Press release | ACCESS Newswire | +1.46% | +8.76% | |
| Form 10-Q Greenidge Generation For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +1.46% | +8.76% | |
| Form S-3 Greenidge Generation | SEC filing · Form S-3 | SEC EDGAR | +1.46% | +8.76% | |
| Form 8-K Greenidge Generation For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | — | +3.31% | |
| Form ARS Greenidge Generation For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +3.51% | +9.65% | |
| Form DEF 14A Greenidge Generation For: Jun 24 | SEC filing · Form DEF | SEC EDGAR | +3.51% | +9.65% | |
| Form DEFA14A Greenidge Generation | SEC filing · Form DEFA14A | SEC EDGAR | +3.51% | +9.65% | |
| Form 8-K Greenidge Generation For: Apr 15 | SEC filing · Form 8-K | SEC EDGAR | +3.28% | +8.20% | |
| Form 8-K Greenidge Generation For: Apr 09 | SEC filing · Form 8-K | SEC EDGAR | -0.84% | +0.84% | |
| Greenidge Generation Announces Expiration and Final Results of Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | -0.84% | +0.84% | |
| Form 10-K Greenidge Generation For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -4.92% | -14.75% | |
| Form 8-K Greenidge Generation For: Mar 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.38% | |
| Greenidge Generation Announces Amendments to and Preliminary Results of Exchange Offer | Press release | Business Wire | +0.00% | -2.38% | |
| Form 8-K Greenidge Generation For: Mar 04 | SEC filing · Form 8-K | SEC EDGAR | +11.91% | +9.52% | |
| Greenidge Generation Announces Commencement of Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | +11.91% | +9.52% | |
| Form 8-K/A Greenidge Generation For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | +0.67% | +7.38% | |
| Form 8-K Greenidge Generation For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | +3.33% | +25.83% | |
| Greenidge Generation Reports Preliminary Financial and Operating Results for the Fourth Quarter and Full Year 2025 | Press release | Business Wire | +3.33% | +25.83% | |
| Form 8-K Greenidge Generation For: Dec 18 | SEC filing · Form 8-K | SEC EDGAR | +0.49% | +10.46% | |
| Form 8-K Greenidge Generation For: Dec 11 | SEC filing · Form 8-K | SEC EDGAR | -1.00% | -6.67% | |
| Greenidge Generation Closes Sale of South Carolina Property for $18 Million in Cash and Up to $18 Million in Additional Earnout Payments | Press release | Business Wire | -1.00% | -6.67% | |
| Form 8-K Greenidge Generation For: Nov 26 | SEC filing · Form 8-K | SEC EDGAR | +2.00% | -2.67% | |
| Form 8-K Greenidge Generation For: Nov 23 | SEC filing · Form 8-K | SEC EDGAR | -3.17% | -1.27% | |
| Form 8-K Greenidge Generation For: Nov 14 | SEC filing · Form 8-K | SEC EDGAR | +1.57% | -4.72% | |
| Form 10-Q Greenidge Generation For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -6.51% | — | |
| Form 8-K Greenidge Generation For: Nov 13 | SEC filing · Form 8-K | SEC EDGAR | -6.51% | — | |
| Greenidge Generation Highlights Historic Agreement with State of New York on New Air Permit and Reports Strong Financial and Operating Results for Third Quarter 2025 | Press release | Business Wire | -6.51% | — | |
| Form 8-K Greenidge Generation For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | -0.52% | +8.81% | |
| Greenidge, New York State Agree on Historic New Air Permit That Will Support Local Power Grid; Includes Required Emissions Reductions That Exceed State’s Climate Act Goals | Press release | Business Wire | -0.52% | +8.81% | |
| Form 8-K Greenidge Generation For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | +1.90% | -7.59% | |
| Greenidge Generation Announces Expiration and Final Results of Tender/Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | +1.90% | -7.59% | |
| Form 8-K Greenidge Generation For: Oct 22 | SEC filing · Form 8-K | SEC EDGAR | +0.72% | -5.80% | |
| Greenidge Generation Announces Early Results for Cash Tender Offer and Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | +0.72% | -5.80% | |
| Form 8-K Greenidge Generation For: Oct 06 | SEC filing · Form 8-K | SEC EDGAR | +1.26% | +13.99% | |
| Greenidge Generation Announces Commencement of Cash Tender Offer and Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | +1.26% | +13.99% | |
| Form 8-K Greenidge Generation For: Sep 29 | SEC filing · Form 8-K | SEC EDGAR | -1.30% | +0.00% | |
| Greenidge Generation Announces Expiration and Finals Results of Tender/Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | -1.30% | +0.00% | |
| Greenidge Generation Closes Sale of its Mississippi Bitcoin Mining Facility | Press release | Business Wire | -1.11% | -7.78% | |
| Form 8-K Greenidge Generation For: Sep 12 | SEC filing · Form 8-K | SEC EDGAR | -1.35% | +1.35% | |
| Greenidge Generation Announces Increase in Cash Tender Offer Price for Senior Notes Due 2026 and Extension of Tender/Exchange Offer | Press release | Business Wire | -1.35% | +1.35% | |
| Form 8-K Greenidge Generation For: Aug 27 | SEC filing · Form 8-K | SEC EDGAR | +0.37% | -2.24% | |
| Greenidge Generation Announces Commencement of Cash Tender Offer and Exchange Offer for Senior Notes Due 2026 | Press release | Business Wire | +0.37% | -2.24% | |
| Form 8-K Greenidge Generation For: Aug 24 | SEC filing · Form 8-K | SEC EDGAR | +0.74% | -1.48% | |
| Greenidge Generation Announces Termination of Agreement to Sell South Carolina Property | Press release | Business Wire | +0.74% | -1.48% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GREE section they belong to.
Where else GREE is measured.
GREE earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Greenidge Generation Holdings Inc.'s median reaction calculated?
Every labeled GREE 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 241 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. 46% of GREE'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 GREE'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.