Guardion Health Sciences, Inc. (GHSI)
GHSI moved a median of +0.57% 30 minutes after news, and +1.48% by the close. How GHSI actually reacts to news — the realized, point-in-time move the market made, measured across 54 labeled events over the last three years with zero look-ahead.
GHSI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.26% | 55% | 33 |
| 30-min | +0.57% | 66% | 44 |
| 60-min | +0.79% | 71% | 45 |
| to close | +1.48% | 75% | 51 |
| Middle 50% of GHSI reactions | -0.03% to +2.34% |
|---|---|
| Median reaction (30-min) | +0.57% |
| Measured reactions | 54 |
Half of all Guardion Health Sciences, Inc. news events land between -0.03% and +2.34% 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 GHSI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GHSI's baseline. Nothing else.
Recent GHSI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Guardion Health Sciences Announces Declaration of Cash Distribution | Press release | GlobeNewswire | — | — | |
| Form 8-K Guardion Health Sciences For: Oct 30 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Guardion Health Sciences Announces Filing of Certificate of Dissolution | Press release | GlobeNewswire | — | — | |
| Form 25 Guardion Health Sciences | SEC filing · Form 25 | SEC EDGAR | -0.06% | -0.44% | |
| Form 8-K Guardion Health Sciences For: Oct 01 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +7.69% | |
| Guardion Health Sciences Announces Adoption of Plan of Dissolution and Liquidation; Appointment of Interim President and CEO | Press release | GlobeNewswire | -0.71% | -8.76% | |
| Form 8-K Guardion Health Sciences For: Sep 17 | SEC filing · Form 8-K | SEC EDGAR | +3.98% | -2.23% | |
| Form 8-K Guardion Health Sciences For: Aug 21 | SEC filing · Form 8-K | SEC EDGAR | +0.68% | +2.73% | |
| Guardion Health Sciences Declares Cash Dividend of $5.00 Per Share of Common Stock | Press release | GlobeNewswire | +0.68% | +2.73% | |
| Form 8-K Guardion Health Sciences For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | — | +1.30% | |
| Form 10-Q Guardion Health Sciences For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | +2.04% | |
| Guardion Health Sciences Announces Financial Results for the Three Months and Six Months Ended June 30, 2024 | Press release | GlobeNewswire | — | +2.04% | |
| Form 8-K Guardion Health Sciences For: Jul 10 | SEC filing · Form 8-K | SEC EDGAR | — | +0.60% | |
| Form 8-K Guardion Health Sciences For: May 31 | SEC filing · Form 8-K | SEC EDGAR | — | +1.54% | |
| Guardion Health Sciences Announces Completion of Sale of its Viactiv® Brand and Business to Doctor’s Best Inc. and Stockholder Approval of Plan of Liquidation and Dissolution | Press release | GlobeNewswire | — | +1.48% | |
| Form 8-K Guardion Health Sciences For: May 23 | SEC filing · Form 8-K | SEC EDGAR | — | +2.21% | |
| Form DEFA14A Guardion Health Sciences | SEC filing · Form DEFA14A | SEC EDGAR | — | +2.21% | |
| Guardion Health Sciences Announces Approval by Stockholders of Proposed Sale of Viactiv Business | Press release | GlobeNewswire | +2.48% | +1.17% | |
| Form 8-K Guardion Health Sciences For: May 21 | SEC filing · Form 8-K | SEC EDGAR | +1.13% | +4.93% | |
| Form DEFA14A Guardion Health Sciences | SEC filing · Form DEFA14A | SEC EDGAR | +1.13% | +4.93% | |
| Guardion Health Sciences Announces its Largest Stockholder Has Voted in Favor of Proposals to Sell the Viactiv Business and the Liquidation Plan at the Company’s Special Meeting of Stockholders to be held on May 23, 2024 | Press release | GlobeNewswire | +1.13% | +4.93% | |
| Form 8-K Guardion Health Sciences For: May 13 | SEC filing · Form 8-K | SEC EDGAR | — | +1.29% | |
| Form DEFA14A Guardion Health Sciences | SEC filing · Form DEFA14A | SEC EDGAR | — | +1.29% | |
| Form 10-Q Guardion Health Sciences For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | +3.41% | |
| Guardion Health Sciences Announces | Press release | GlobeNewswire | — | +3.41% | |
| Form EFFECT Guardion Health Sciences | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K Guardion Health Sciences For: May 02 | SEC filing · Form 8-K | SEC EDGAR | +3.04% | +1.27% | |
| Form 10-K/A Guardion Health Sciences For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | — | +0.00% | |
| Form 8-K Guardion Health Sciences For: Apr 03 | SEC filing · Form 8-K | SEC EDGAR | +0.26% | +3.27% | |
| Form DEFM14A Guardion Health Sciences | SEC filing · Form DEFM14A | SEC EDGAR | +1.90% | -1.90% | |
| Form S-3 Guardion Health Sciences | SEC filing · Form S-3 | SEC EDGAR | — | +0.11% | |
| Form 8-K Guardion Health Sciences For: Mar 29 | SEC filing · Form 8-K | SEC EDGAR | -0.22% | +0.44% | |
| Form 10-K Guardion Health Sciences For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.22% | +0.44% | |
| Guardion Health Sciences Announces Financial Results for the Year Ended December 31, 2023 | Press release | GlobeNewswire | -0.22% | +0.44% | |
| Form PREM14A Guardion Health Sciences For: Mar 20 | SEC filing · Form PREM14A | SEC EDGAR | +0.00% | +0.77% | |
| Form PRE 14A Guardion Health Sciences For: Mar 15 | SEC filing · Form PRE | SEC EDGAR | +0.00% | +2.53% | |
| Form 8-K Guardion Health Sciences For: Jan 30 | SEC filing · Form 8-K | SEC EDGAR | -2.96% | +7.53% | |
| Thinking about buying stock in Guardion Health Sciences, Minim, Revelation Biosciences, Nyxoah, or Pixelworks? | Press release | PR Newswire | +14.66% | -3.23% | |
| Guardion Health Sciences Announces Entry into Definitive Agreement to Sell its Well-Known Viactiv® Brand and Business to Doctor’s Best Inc. | Press release | GlobeNewswire | +10.83% | -6.47% | |
| Form 8-K Guardion Health Sciences For: Nov 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +2.70% | |
| Form 10-Q Guardion Health Sciences For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.69% | +6.25% | |
| Form 8-K Guardion Health Sciences For: Nov 13 | SEC filing · Form 8-K | SEC EDGAR | +2.69% | +6.25% | |
| Guardion Health Sciences Announces Financial Results for the Three Months and Nine Months Ended September 30, 2023 | Press release | GlobeNewswire | +2.69% | +6.25% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GHSI section they belong to.
Where else GHSI is measured.
GHSI earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Guardion Health Sciences, Inc.'s median reaction calculated?
Every labeled GHSI 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 54 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. 66% of GHSI'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 GHSI'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.