Hempacco Co., Inc. (HPCO)
HPCO moved a median of -0.88% 30 minutes after news, and +0.60% by the close. How HPCO actually reacts to news — the realized, point-in-time move the market made, measured across 42 labeled events over the last three years with zero look-ahead.
HPCO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 22% | 36 |
| 30-min | -0.88% | 27% | 41 |
| 60-min | -0.05% | 34% | 41 |
| to close | +0.60% | 51% | 41 |
| Middle 50% of HPCO reactions | -1.81% to +0.31% |
|---|---|
| Median reaction (30-min) | -0.88% |
| Measured reactions | 42 |
Half of all Hempacco Co., Inc. news events land between -1.81% and +0.31% 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 HPCO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to HPCO's baseline. Nothing else.
Recent HPCO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K Hempacco Co., Inc. For: Oct 03 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K Hempacco Co., Inc. For: Sep 04 | SEC filing · Form 8-K | SEC EDGAR | — | +47.62% | |
| Form 8-K Hempacco Co., Inc. For: Aug 20 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.19% | |
| Form 8-K Hempacco Co., Inc. For: Aug 14 | SEC filing · Form 8-K | SEC EDGAR | -3.54% | +3.74% | |
| Form DEFA14A Hempacco Co., Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +18.50% | |
| Form NT 10-Q Hempacco Co., Inc. For: Jun 30 | SEC filing · Form NT | SEC EDGAR | -1.19% | -3.30% | |
| Form 8-K Hempacco Co., Inc. For: Aug 09 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.82% | |
| Form DEF 14A Hempacco Co., Inc. For: Aug 12 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -1.82% | |
| Form 10-K Hempacco Co., Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +4.00% | -4.00% | |
| Form 8-K Hempacco Co., Inc. For: Jul 16 | SEC filing · Form 8-K | SEC EDGAR | — | -1.10% | |
| Form 8-K Hempacco Co., Inc. For: Jul 01 | SEC filing · Form 8-K | SEC EDGAR | -5.87% | -1.76% | |
| Form DEF 14C Hempacco Co., Inc. For: May 21 | SEC filing · Form DEF | SEC EDGAR | -0.99% | +0.99% | |
| Form NT 10-Q Hempacco Co., Inc. For: Mar 31 | SEC filing · Form NT | SEC EDGAR | +0.00% | +7.24% | |
| Form PRE 14C Hempacco Co., Inc. For: May 09 | SEC filing · Form PRE | SEC EDGAR | -1.06% | +2.06% | |
| New to The Street Airs Episode 572 Featuring Five Corporate Interviews, Broadcast on the FOX Business Network, Monday, May 6, 2024, at 10:30 PM PT | Press release | GlobeNewswire | — | -4.81% | |
| Form 8-K Hempacco Co., Inc. For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | -3.07% | -12.28% | |
| Illumination Brands, Formerly CBD Global Sciences, and Hempacco Announce Letter of Intent for Potential Business Combination | Press release | GlobeNewswire | +2.55% | +22.45% | |
| Form 8-K Hempacco Co., Inc. For: Apr 18 | SEC filing · Form 8-K | SEC EDGAR | +3.95% | +0.99% | |
| Form 8-K Hempacco Co., Inc. For: Mar 29 | SEC filing · Form 8-K | SEC EDGAR | -0.68% | +3.38% | |
| Form D Hempacco Co., Inc. | SEC filing · Form D | SEC EDGAR | -0.68% | +3.38% | |
| Form NT 10-K Hempacco Co., Inc. For: Dec 31 | SEC filing · Form NT | SEC EDGAR | -0.68% | +3.38% | |
| Form 8-K Hempacco Co., Inc. For: Mar 08 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -9.94% | |
| New to The Street and Hempacco Co., Inc. Sign Three Month Media Contract | Press release | GlobeNewswire | -1.16% | +0.60% | |
| Form 8-K Hempacco Co., Inc. For: Mar 04 | SEC filing · Form 8-K | SEC EDGAR | -5.24% | +0.96% | |
| Form EFFECT Hempacco Co., Inc. | SEC filing · Form EFFECT | SEC EDGAR | -2.94% | -7.26% | |
| Form S-1 Hempacco Co., Inc. | SEC filing · Form S-1 | SEC EDGAR | +0.00% | -2.06% | |
| Form 8-K Hempacco Co., Inc. For: Jan 09 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +6.00% | |
| Form 8-K Hempacco Co., Inc. For: Dec 29 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -4.40% | |
| New to The Street Announces its Five Corporate Guest Appearances, Show Airs as Sponsored Programming on Bloomberg TV and the FOX Business Network; Broadcastings Begin on Saturday, December 23, 2023, at 6:30 PM ET | Press release | GlobeNewswire | +1.56% | +5.94% | |
| Form 8-K Hempacco Co., Inc. For: Dec 19 | SEC filing · Form 8-K | SEC EDGAR | +4.99% | +4.31% | |
| Form D Hempacco Co., Inc. | SEC filing · Form D | SEC EDGAR | +2.34% | +3.92% | |
| New to The Street Announces its Five TV Corporate Interviews, Episodes 538 and 539, Airings Start on Bloomberg TV as a Sponsored Program, Saturday, December 16, 2023, at 6:30 PM ET | Press release | GlobeNewswire | — | +0.00% | |
| Form 8-K Hempacco Co., Inc. For: Dec 12 | SEC filing · Form 8-K | SEC EDGAR | -0.60% | -0.68% | |
| Form 8-K Hempacco Co., Inc. For: Nov 15 | SEC filing · Form 8-K | SEC EDGAR | +0.59% | -3.82% | |
| Form 10-Q Hempacco Co., Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.08% | -3.98% | |
| Form NT 10-Q Hempacco Co., Inc. For: Sep 30 | SEC filing · Form NT | SEC EDGAR | -1.81% | -6.42% | |
| Form DEF 14C Hempacco Co., Inc. For: Nov 07 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +3.85% | |
| Form 8-K Hempacco Co., Inc. For: Oct 26 | SEC filing · Form 8-K | SEC EDGAR | -2.22% | +12.43% | |
| Form PRE 14C Hempacco Co., Inc. For: Oct 26 | SEC filing · Form PRE | SEC EDGAR | +4.60% | +2.13% | |
| Form 8-K Hempacco Co., Inc. For: Oct 19 | SEC filing · Form 8-K | SEC EDGAR | — | +5.74% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the HPCO section they belong to.
Where else HPCO is measured.
HPCO earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Hempacco Co., Inc.'s median reaction calculated?
Every labeled HPCO 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 42 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. 27% of HPCO'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 HPCO'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.