OPGEN INC (OPGN)
OPGN moved a median of 0.00% 30 minutes after news, and +0.88% by the close. How OPGN actually reacts to news — the realized, point-in-time move the market made, measured across 127 labeled events over the last three years with zero look-ahead.
OPGN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 32% | 108 |
| 30-min | 0.00% | 41% | 111 |
| 60-min | -0.02% | 35% | 111 |
| to close | +0.88% | 50% | 117 |
| Middle 50% of OPGN reactions | -1.43% to +3.07% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 127 |
Half of all OPGEN INC news events land between -1.43% and +3.07% 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 OPGN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to OPGN's baseline. Nothing else.
Recent OPGN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K CapForce Inc. For: Feb 23 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +20.00% | |
| OpGen, Inc. (OTC: OPGN) Announces Name Change to CapForce Inc. | Press release | GlobeNewswire | +0.00% | +20.00% | |
| Form DEF 14A OPGEN INC For: Feb 23 | SEC filing · Form DEF | SEC EDGAR | — | +0.00% | |
| Form PRE 14A OPGEN INC For: Jan 26 | SEC filing · Form PRE | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K OPGEN INC For: Dec 01 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -6.63% | |
| Form 8-K OPGEN INC For: Dec 17 | SEC filing · Form 8-K | SEC EDGAR | +28.54% | +28.11% | |
| Form 8-K OPGEN INC For: Dec 01 | SEC filing · Form 8-K | SEC EDGAR | +14.35% | +14.35% | |
| Form 10-Q OPGEN INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -10.00% | |
| Form NT 10-Q OPGEN INC For: Sep 30 | SEC filing · Form NT | SEC EDGAR | +19.05% | -33.33% | |
| Form 10-Q OPGEN INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +15.14% | — | |
| Form 10-Q OPGEN INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 10-K OPGEN INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +0.00% | |
| Form NT 10-Q OPGEN INC For: Jun 30 | SEC filing · Form NT | SEC EDGAR | — | — | |
| Form 8-K OPGEN INC For: Jul 17 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K OPGEN INC For: Oct 02 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +5.62% | |
| Form NT 10-Q OPGEN INC For: Mar 31 | SEC filing · Form NT | SEC EDGAR | +0.00% | +4.04% | |
| Form NT 10-K OPGEN INC For: Dec 31 | SEC filing · Form NT | SEC EDGAR | +0.00% | +3.78% | |
| Form 8-K OPGEN INC For: Dec 19 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.92% | |
| Form 8-K OPGEN INC For: Dec 04 | SEC filing · Form 8-K | SEC EDGAR | -25.71% | -14.29% | |
| Form 10-Q OPGEN INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +2.63% | +2.63% | |
| Form NT 10-Q OPGEN INC For: Sep 30 | SEC filing · Form NT | SEC EDGAR | +4.21% | +2.37% | |
| Form 8-K OPGEN INC For: Oct 03 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -9.41% | |
| Form 8-K OPGEN INC For: Aug 16 | SEC filing · Form 8-K | SEC EDGAR | +2.44% | -7.32% | |
| Form 10-Q OPGEN INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +11.43% | +37.14% | |
| Form 10-Q/A OPGEN INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +11.43% | +37.14% | |
| Form 8-K OPGEN INC For: Aug 14 | SEC filing · Form 8-K | SEC EDGAR | +11.43% | +37.14% | |
| Form 8-K OPGEN INC For: Aug 09 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.88% | |
| Form NT 10-Q OPGEN INC For: Jun 30 | SEC filing · Form NT | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-K OPGEN INC For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +2.69% | -0.77% | |
| Form 10-Q OPGEN INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +6.54% | |
| Form 8-K OPGEN INC For: Jun 05 | SEC filing · Form 8-K | SEC EDGAR | -0.76% | -2.67% | |
| Form 10-K OPGEN INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +12.50% | |
| Form 8-K OPGEN INC For: May 29 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +12.50% | |
| Form 8-K/A OPGEN INC For: Mar 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -9.47% | |
| Form 8-K OPGEN INC For: May 20 | SEC filing · Form 8-K | SEC EDGAR | +2.76% | +1.23% | |
| OpGen Receives Expected Nasdaq Notice Regarding Delayed Form 10-Q | Press release | GlobeNewswire | +2.76% | +1.23% | |
| Form 8-K OPGEN INC For: May 16 | SEC filing · Form 8-K | SEC EDGAR | +2.38% | -2.68% | |
| Form NT 10-Q OPGEN INC For: Mar 31 | SEC filing · Form NT | SEC EDGAR | -3.40% | -12.47% | |
| OpGen Announced 1-for-10 Reverse Stock Split | Press release | GlobeNewswire | +2.45% | +16.69% | |
| Form 8-K OPGEN INC For: May 09 | SEC filing · Form 8-K | SEC EDGAR | +0.70% | +1.95% | |
| Form 8-K OPGEN INC For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | -6.78% | -19.40% | |
| OpGen Provides Update on Business Operations and Strategic Opportunities | Press release | GlobeNewswire | -6.78% | -19.40% | |
| Form DEF 14A OPGEN INC For: May 09 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -4.65% | |
| Form 8-K OPGEN INC For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -4.65% | |
| Form 8-K OPGEN INC For: Apr 18 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -6.32% | |
| OpGen Receives Nasdaq Notice Regarding Delayed Form 10-K | Press release | GlobeNewswire | +0.00% | -6.32% | |
| Form 8-K OPGEN INC For: Apr 11 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.98% | |
| Form PRE 14A OPGEN INC For: Apr 16 | SEC filing · Form PRE | SEC EDGAR | +0.00% | -1.98% | |
| Form 8-K OPGEN INC For: Mar 25 | SEC filing · Form 8-K | SEC EDGAR | -2.56% | -12.28% | |
| Form NT 10-K OPGEN INC For: Dec 31 | SEC filing · Form NT | SEC EDGAR | -2.56% | -12.28% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the OPGN section they belong to.
Where else OPGN is measured.
OPGN earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Madrigal Pharmaceuticals, Inc. (MDGL) | 129 | -0.18% | 44% |
| Medicenna Therapeutics Corp (MDNA_TSE) | 127 | 0.00% | 46% |
| Orgenesis Inc. (ORGS) | 127 | +0.01% | 52% |
| AFFYMAX INC (AFFY) | 126 | +0.16% | 53% |
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 OPGEN INC's median reaction calculated?
Every labeled OPGN 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 127 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. 41% of OPGN'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 OPGN'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.