American Shared Hospital Services (AMS)
AMS moved a median of 0.00% 30 minutes after news, and +0.33% by the close. How AMS actually reacts to news — the realized, point-in-time move the market made, measured across 121 labeled events over the last three years with zero look-ahead.
AMS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 41% | 78 |
| 30-min | 0.00% | 48% | 92 |
| 60-min | +0.02% | 51% | 105 |
| to close | +0.33% | 53% | 119 |
| Middle 50% of AMS reactions | -0.34% to +0.98% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 121 |
Half of all American Shared Hospital Services news events land between -0.34% and +0.98% 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 AMS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to AMS's baseline. Nothing else.
Recent AMS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| American Shared Hospital Services Reports Second Quarter and First Half 2026 Financial Results | Press release | GlobeNewswire | -1.58% | +1.27% | |
| Form 10-Q AMERICAN SHARED HOSPITAL For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -6.25% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | — | +6.67% | |
| American Shared Hospital Services Announces Second Quarter 2026 Financial Results Conference Call | Press release | GlobeNewswire | +2.03% | -1.35% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Jul 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -6.13% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Jul 07 | SEC filing · Form 8-K | SEC EDGAR | -1.76% | -2.11% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Jun 24 | SEC filing · Form 8-K | SEC EDGAR | +0.65% | +3.27% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: May 29 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.48% | |
| American Shared Hospital Services Announces Annual Shareholder Meeting to be Held on June 24, 2026 | Press release | GlobeNewswire | +1.09% | -0.73% | |
| American Shared Hospital Services Reports First Quarter 2026 Financial Results | Press release | GlobeNewswire | +1.84% | -3.07% | |
| Form 10-Q AMERICAN SHARED HOSPITAL For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -3.29% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: May 14 | SEC filing · Form 8-K | SEC EDGAR | +0.85% | +0.85% | |
| American Shared Hospital Services Announces First Quarter 2026 Financial Results Conference Call | Press release | GlobeNewswire | -0.54% | -6.49% | |
| Form DEFA14A AMERICAN SHARED HOSPITAL | SEC filing · Form DEFA14A | SEC EDGAR | +0.79% | +5.51% | |
| Form ARS AMERICAN SHARED HOSPITAL For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.33% | -3.01% | |
| Form DEF 14A AMERICAN SHARED HOSPITAL For: Jun 24 | SEC filing · Form DEF | SEC EDGAR | — | -4.61% | |
| Form DEFA14A AMERICAN SHARED HOSPITAL | SEC filing · Form DEFA14A | SEC EDGAR | -1.27% | -3.60% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Apr 20 | SEC filing · Form 8-K | SEC EDGAR | +4.76% | +4.76% | |
| American Shared Hospital Services Reports Fourth Quarter and Full Year 2025 Financial Results | Press release | GlobeNewswire | -2.05% | -15.21% | |
| Form 10-K AMERICAN SHARED HOSPITAL For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -2.13% | -4.25% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | — | -12.12% | |
| American Shared Hospital Services Announces Fourth Quarter and Full Year Financial Results Conference Call | Press release | GlobeNewswire | +0.00% | -3.06% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Mar 13 | SEC filing · Form 8-K | SEC EDGAR | — | -3.10% | |
| Form 10-Q/A AMERICAN SHARED HOSPITAL For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.95% | -0.47% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Dec 27 | SEC filing · Form 8-K | SEC EDGAR | +0.48% | +4.31% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Dec 10 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-Q AMERICAN SHARED HOSPITAL For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | — | -0.12% | |
| American Shared Hospital Services Reports Third Quarter 2025 Financial Results | Press release | GlobeNewswire | +6.01% | — | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Nov 13 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| American Shared Hospital Services Announces Third Quarter Financial Results Conference Call | Press release | GlobeNewswire | — | +0.48% | |
| American Shared Hospital Services Reports Second Quarter 2025 Financial Results | Press release | GlobeNewswire | +0.00% | -4.80% | |
| Form 10-Q AMERICAN SHARED HOSPITAL For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | — | +0.19% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Aug 13 | SEC filing · Form 8-K | SEC EDGAR | — | -1.52% | |
| American Shared Hospital Services Announces Second Quarter Financial Results Conference Call | Press release | GlobeNewswire | +2.99% | -0.40% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Jun 26 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.02% | |
| Form 8-K/A AMERICAN SHARED HOSPITAL For: Apr 03 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.02% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Jun 03 | SEC filing · Form 8-K | SEC EDGAR | -0.21% | +7.03% | |
| American Shared Hospital Services Reports First Quarter 2025 Financial Results | Press release | GlobeNewswire | -2.61% | -7.59% | |
| Form 10-Q AMERICAN SHARED HOSPITAL For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -3.96% | +1.34% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: May 15 | SEC filing · Form 8-K | SEC EDGAR | — | +1.13% | |
| American Shared Hospital Services Announces First Quarter Financial Results Conference Call | Press release | GlobeNewswire | +0.00% | +3.26% | |
| Form ARS AMERICAN SHARED HOSPITAL For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | +0.00% | |
| Form DEF 14A AMERICAN SHARED HOSPITAL For: Jun 26 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +0.00% | |
| Form DEFA14A AMERICAN SHARED HOSPITAL | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | +0.00% | |
| American Shared Hospital Services Announces Annual Shareholder Meeting to be Held on Thursday, June 26, 2025 | Press release | GlobeNewswire | -0.32% | +1.88% | |
| American Shared Hospital Services to Present at the Planet MicroCap Showcase: VEGAS in partnership with MicroCapClub | Press release | GlobeNewswire | +0.00% | +0.00% | |
| American Shared Hospital Services Reports Fourth Quarter and Strong Full Year 2024 Financial Results | Press release | GlobeNewswire | -3.50% | +4.89% | |
| Form 10-K AMERICAN SHARED HOSPITAL For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +2.52% | +0.35% | |
| Form 8-K AMERICAN SHARED HOSPITAL For: Apr 03 | SEC filing · Form 8-K | SEC EDGAR | — | +7.22% | |
| American Shared Hospital Services Announces Fourth Quarter and Full Year 2024 Earnings Conference Call | Press release | GlobeNewswire | +0.00% | -1.72% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the AMS section they belong to.
Where else AMS is measured.
AMS earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| WAYLAND GROUP CORP ORD (MRRCF) | 122 | -0.44% | 40% |
| ZIVO BIOSCIENCE INC (ZIVO) | 122 | 0.00% | 29% |
| Protagenic Therapeutics, Inc. (PTIX) | 121 | 0.00% | 39% |
| Xenetic Biosciences, Inc. (XBIO) | 121 | 0.00% | 38% |
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 American Shared Hospital Services's median reaction calculated?
Every labeled AMS 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 121 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. 48% of AMS'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 AMS'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.