NovaBay Pharmaceuticals, Inc. (NBY)
NBY moved a median of -0.94% 30 minutes after news, and -1.84% by the close. How NBY actually reacts to news — the realized, point-in-time move the market made, measured across 205 labeled events over the last three years with zero look-ahead.
NBY’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.41% | 29% | 196 |
| 30-min | -0.94% | 32% | 199 |
| 60-min | -0.90% | 36% | 199 |
| to close | -1.84% | 42% | 199 |
| Middle 50% of NBY reactions | -3.82% to +0.77% |
|---|---|
| Median reaction (30-min) | -0.94% |
| Measured reactions | 205 |
Half of all NovaBay Pharmaceuticals, Inc. news events land between -3.82% and +0.77% 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 NBY moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to NBY's baseline. Nothing else.
Recent NBY events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K Stablecoin Development For: Apr 06 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K Stablecoin Development For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | +1.14% | +23.42% | |
| Form 8-K NovaBay Pharmaceuticals, For: Mar 23 | SEC filing · Form 8-K | SEC EDGAR | -1.68% | +15.97% | |
| NovaBay Pharmaceuticals Announces Name Change to Stablecoin Development Corporation, Reports Initial Staking Rewards, and Provides SKY Token Holdings Update | Press release | GlobeNewswire | -1.68% | +15.97% | |
| Form 10-K NovaBay Pharmaceuticals, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | -4.92% | |
| Form 8-K NovaBay Pharmaceuticals, For: Mar 12 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.42% | |
| Form DEFA14A NovaBay Pharmaceuticals, | SEC filing · Form DEFA14A | SEC EDGAR | -2.10% | +3.50% | |
| Form 8-K NovaBay Pharmaceuticals, For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | -5.71% | -25.00% | |
| Form 8-K NovaBay Pharmaceuticals, For: Feb 11 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -13.39% | |
| Form DEF 14A NovaBay Pharmaceuticals, For: Mar 12 | SEC filing · Form DEF | SEC EDGAR | +8.00% | -2.76% | |
| Form 8-K NovaBay Pharmaceuticals, For: Jan 30 | SEC filing · Form 8-K | SEC EDGAR | -0.43% | -7.57% | |
| Form PRE 14A NovaBay Pharmaceuticals, For: Mar 12 | SEC filing · Form PRE | SEC EDGAR | -0.43% | -7.57% | |
| Form 8-K NovaBay Pharmaceuticals, For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | -6.03% | -7.04% | |
| Form D NovaBay Pharmaceuticals, | SEC filing · Form D | SEC EDGAR | -0.01% | +18.50% | |
| Form 8-K NovaBay Pharmaceuticals, For: Jan 20 | SEC filing · Form 8-K | SEC EDGAR | -11.83% | -40.85% | |
| Form 8-K NovaBay Pharmaceuticals, For: Jan 16 | SEC filing · Form 8-K | SEC EDGAR | -11.83% | -40.85% | |
| Form EFFECT NovaBay Pharmaceuticals, | SEC filing · Form EFFECT | SEC EDGAR | -0.49% | +6.86% | |
| Form S-3/A NovaBay Pharmaceuticals, | SEC filing · Form S-3 | SEC EDGAR | +0.00% | +8.49% | |
| Form S-8 NovaBay Pharmaceuticals, | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +8.49% | |
| Form 10-Q NovaBay Pharmaceuticals, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -2.78% | +0.00% | |
| Form 8-K NovaBay Pharmaceuticals, For: Oct 16 | SEC filing · Form 8-K | SEC EDGAR | +0.14% | +6.03% | |
| Form 8-K NovaBay Pharmaceuticals, For: Oct 20 | SEC filing · Form 8-K | SEC EDGAR | +1.60% | -7.20% | |
| Form 8-K NovaBay Pharmaceuticals, For: Oct 16 | SEC filing · Form 8-K | SEC EDGAR | +1.44% | +25.00% | |
| NovaBay Pharmaceuticals, Inc. Regains Compliance with NYSE American Continued Listing Standards | Press release | GlobeNewswire | +1.60% | -7.20% | |
| Form 8-K NovaBay Pharmaceuticals, For: Oct 09 | SEC filing · Form 8-K | SEC EDGAR | +3.23% | -0.81% | |
| Form DEFA14A NovaBay Pharmaceuticals, | SEC filing · Form DEFA14A | SEC EDGAR | +3.23% | -0.81% | |
| Form S-3 NovaBay Pharmaceuticals, | SEC filing · Form S-3 | SEC EDGAR | -1.47% | -10.29% | |
| Form ARS NovaBay Pharmaceuticals, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +2.86% | +2.86% | |
| Form DEF 14A NovaBay Pharmaceuticals, For: Oct 16 | SEC filing · Form DEF | SEC EDGAR | +2.86% | +2.86% | |
| Form 8-K NovaBay Pharmaceuticals, For: Sep 18 | SEC filing · Form 8-K | SEC EDGAR | +2.58% | -6.19% | |
| Form DEFA14A NovaBay Pharmaceuticals, | SEC filing · Form DEFA14A | SEC EDGAR | +2.58% | -6.19% | |
| Form PRE 14A NovaBay Pharmaceuticals, For: Oct 16 | SEC filing · Form PRE | SEC EDGAR | -0.74% | +24.05% | |
| Form 8-K NovaBay Pharmaceuticals, For: Aug 26 | SEC filing · Form 8-K | SEC EDGAR | -5.02% | -14.84% | |
| Form 8-K NovaBay Pharmaceuticals, For: Aug 19 | SEC filing · Form 8-K | SEC EDGAR | +6.42% | -5.50% | |
| Form 10-Q NovaBay Pharmaceuticals, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.70% | +5.92% | |
| Form 10-Q NovaBay Pharmaceuticals, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.56% | -1.84% | |
| Form 8-K NovaBay Pharmaceuticals, For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.02% | |
| Form 10-K NovaBay Pharmaceuticals, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | -1.35% | |
| Form NT 10-K NovaBay Pharmaceuticals, For: Dec 31 | SEC filing · Form NT | SEC EDGAR | +0.00% | +0.02% | |
| Form DEF 14A NovaBay Pharmaceuticals, For: Apr 16 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +2.48% | |
| Form 8-K NovaBay Pharmaceuticals, For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +7.63% | |
| Form 8-K NovaBay Pharmaceuticals, For: Mar 04 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +7.14% | |
| Form DEFA14A NovaBay Pharmaceuticals, | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +7.14% | |
| NovaBay Pharmaceuticals to Hold Special Meeting of Stockholders | Press release | Business Wire | +0.00% | +7.14% | |
| Form PRE 14A NovaBay Pharmaceuticals, For: Apr 16 | SEC filing · Form PRE | SEC EDGAR | +5.18% | -2.24% | |
| Form 8-K NovaBay Pharmaceuticals, For: Jan 30 | SEC filing · Form 8-K | SEC EDGAR | +6.08% | +9.03% | |
| Form DEFA14A NovaBay Pharmaceuticals, | SEC filing · Form DEFA14A | SEC EDGAR | +6.08% | +9.03% | |
| Form 8-K NovaBay Pharmaceuticals, For: Jan 16 | SEC filing · Form 8-K | SEC EDGAR | -0.88% | -11.24% | |
| Form DEFA14A NovaBay Pharmaceuticals, | SEC filing · Form DEFA14A | SEC EDGAR | -0.88% | -11.24% | |
| NovaBay Pharmaceuticals Completes the Sale of its Eyecare Business to PRN and Further Adjourns its Special Meeting of Stockholders on Dissolution Proposal | Press release | Business Wire | -0.88% | -11.24% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the NBY section they belong to.
Where else NBY is measured.
NBY earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Pediatrix Medical Group, Inc. (MD) | 206 | +0.02% | 51% |
| Curis, Inc. (CRIS) | 205 | 0.00% | 45% |
| OptiNose, Inc. (OPTN) | 205 | 0.00% | 48% |
| ASPEN PHARMACRE HL UN/ADR (APNHY) | 204 | 0.00% | 15% |
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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Every name we’ve measured, in one place.
How the numbers are made.
How is NovaBay Pharmaceuticals, Inc.'s median reaction calculated?
Every labeled NBY 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 205 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. 32% of NBY'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 NBY'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.