GeoVax Labs, Inc. (GOVX)
GOVX moved a median of -0.65% 30 minutes after news, and -1.42% by the close. How GOVX actually reacts to news — the realized, point-in-time move the market made, measured across 296 labeled events over the last three years with zero look-ahead.
GOVX’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 40% | 291 |
| 30-min | -0.65% | 35% | 296 |
| 60-min | -0.91% | 32% | 296 |
| to close | -1.42% | 41% | 289 |
| Middle 50% of GOVX reactions | -3.68% to +0.80% |
|---|---|
| Median reaction (30-min) | -0.65% |
| Measured reactions | 296 |
Half of all GeoVax Labs, Inc. news events land between -3.68% and +0.80% 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 GOVX moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GOVX's baseline. Nothing else.
Recent GOVX events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form EFFECT GeoVax Labs, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -2.41% | -4.68% | |
| Form S-1 GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | -2.37% | -8.95% | |
| Form 8-K GeoVax Labs, Inc. For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | +0.98% | -3.54% | |
| Form DEF 14A GeoVax Labs, Inc. For: Oct 27 | SEC filing · Form DEF | SEC EDGAR | +0.98% | -3.54% | |
| Form PRE 14A GeoVax Labs, Inc. For: Oct 27 | SEC filing · Form PRE | SEC EDGAR | +0.00% | -2.39% | |
| Form 8-K GeoVax Labs, Inc. For: Aug 25 | SEC filing · Form 8-K | SEC EDGAR | -1.67% | -4.18% | |
| Form 8-K GeoVax Labs, Inc. For: Aug 27 | SEC filing · Form 8-K | SEC EDGAR | -1.67% | -4.18% | |
| Form 10-Q GeoVax Labs, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +11.01% | +13.76% | |
| Form 8-K GeoVax Labs, Inc. For: Jul 27 | SEC filing · Form 8-K | SEC EDGAR | +11.01% | +13.76% | |
| Form 8-K GeoVax Labs, Inc. For: Jul 07 | SEC filing · Form 8-K | SEC EDGAR | -2.56% | -5.13% | |
| Form 8-K GeoVax Labs, Inc. For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | +0.83% | +11.67% | |
| Form EFFECT GeoVax Labs, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -1.86% | -8.67% | |
| Form S-1 GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | -1.87% | +0.58% | |
| Form 8-K GeoVax Labs, Inc. For: May 18 | SEC filing · Form 8-K | SEC EDGAR | -2.08% | +13.78% | |
| Form DEFR14A GeoVax Labs, Inc. | SEC filing · Form DEFR14A | SEC EDGAR | +4.87% | +3.08% | |
| Form 10-Q GeoVax Labs, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -1.88% | -7.52% | |
| Form 8-K GeoVax Labs, Inc. For: May 14 | SEC filing · Form 8-K | SEC EDGAR | -1.88% | -7.52% | |
| Form PRER14A GeoVax Labs, Inc. | SEC filing · Form PRER14A | SEC EDGAR | +0.90% | -10.84% | |
| Form 8-K GeoVax Labs, Inc. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -6.18% | |
| Form DEF 14A GeoVax Labs, Inc. For: Jun 17 | SEC filing · Form DEF | SEC EDGAR | +0.45% | -1.79% | |
| Form EFFECT GeoVax Labs, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -2.59% | +0.86% | |
| Form EFFECT GeoVax Labs, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -2.48% | -3.31% | |
| Form POS EX GeoVax Labs, Inc. | SEC filing · Form POS | SEC EDGAR | +0.00% | -1.59% | |
| Form POS AM GeoVax Labs, Inc. | SEC filing · Form POS | SEC EDGAR | +4.76% | -2.38% | |
| Form PRE 14A GeoVax Labs, Inc. For: Jun 17 | SEC filing · Form PRE | SEC EDGAR | +0.00% | -1.59% | |
| Form S-1 GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | +4.76% | -2.38% | |
| Form 10-K GeoVax Labs, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K GeoVax Labs, Inc. For: Apr 15 | SEC filing · Form 8-K | SEC EDGAR | +4.76% | -2.38% | |
| Form 8-K GeoVax Labs, Inc. For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form NT 10-K GeoVax Labs, Inc. For: Dec 31 | SEC filing · Form NT | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K GeoVax Labs, Inc. For: Feb 13 | SEC filing · Form 8-K | SEC EDGAR | -5.33% | -17.75% | |
| Form 8-K GeoVax Labs, Inc. For: Jan 09 | SEC filing · Form 8-K | SEC EDGAR | -1.13% | -1.97% | |
| Form 8-K GeoVax Labs, Inc. For: Dec 19 | SEC filing · Form 8-K | SEC EDGAR | +0.97% | +15.30% | |
| Form EFFECT GeoVax Labs, Inc. | SEC filing · Form EFFECT | SEC EDGAR | +2.18% | +4.42% | |
| Form S-1 GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | -1.19% | -3.20% | |
| Form 8-K GeoVax Labs, Inc. For: Nov 26 | SEC filing · Form 8-K | SEC EDGAR | -6.08% | -7.83% | |
| Form S-1 GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | +0.20% | +7.79% | |
| Form DEF 14A GeoVax Labs, Inc. For: Nov 26 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -0.55% | |
| Form PRE 14A GeoVax Labs, Inc. For: Nov 26 | SEC filing · Form PRE | SEC EDGAR | -1.12% | -1.73% | |
| Form 8-K GeoVax Labs, Inc. For: Sep 30 | SEC filing · Form 8-K | SEC EDGAR | -2.00% | +7.80% | |
| Form 8-K GeoVax Labs, Inc. For: Jul 31 | SEC filing · Form 8-K | SEC EDGAR | -0.78% | +7.78% | |
| Form 8-K GeoVax Labs, Inc. For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | -1.64% | — | |
| Form 10-Q GeoVax Labs, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.64% | — | |
| Form 8-K GeoVax Labs, Inc. For: Jul 01 | SEC filing · Form 8-K | SEC EDGAR | -0.12% | -2.02% | |
| Form EFFECT GeoVax Labs, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -0.53% | -14.61% | |
| Form S-1/A GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | -0.18% | +2.48% | |
| Form S-1 GeoVax Labs, Inc. | SEC filing · Form S-1 | SEC EDGAR | +0.00% | -32.33% | |
| Form S-8 GeoVax Labs, Inc. | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +5.36% | |
| Form 8-K GeoVax Labs, Inc. For: Jun 05 | SEC filing · Form 8-K | SEC EDGAR | -0.89% | +0.00% | |
| Form 10-Q GeoVax Labs, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -1.90% | +3.06% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GOVX section they belong to.
Where else GOVX is measured.
GOVX earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| RESTORATION ROBOTICS (HAIR) | 297 | -0.24% | 40% |
| IDEXX Laboratories, Inc. (IDXX) | 297 | +0.15% | 58% |
| Processa Pharmaceuticals, Inc. (PCSA) | 296 | 0.00% | 50% |
| IPSEN SA S/ADR (IPSEY) | 294 | 0.00% | 6% |
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 Healthcare names, measured the same way →
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How the numbers are made.
How is GeoVax Labs, Inc.'s median reaction calculated?
Every labeled GOVX 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 296 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. 35% of GOVX'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 GOVX'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.