Fortuna Mining Corp. Common Shares (FSM)
FSM moved a median of +0.13% 30 minutes after news, and 0.00% by the close. How FSM actually reacts to news — the realized, point-in-time move the market made, measured across 354 labeled events over the last three years with zero look-ahead.
FSM’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 50% | 353 |
| 30-min | +0.13% | 54% | 353 |
| 60-min | +0.20% | 54% | 353 |
| to close | 0.00% | 49% | 353 |
| Middle 50% of FSM reactions | -0.76% to +0.85% |
|---|---|
| Median reaction (30-min) | +0.13% |
| Measured reactions | 354 |
Half of all Fortuna Mining Corp. Common Shares news events land between -0.76% and +0.85% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How FSM reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 24 | +1.37% | 71% | +0.91% |
| Analyst downgrades | 17 | -0.41% | 41% | -0.94% |
| Rating reiterations | 18 | -0.18% | 33% | +0.17% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 3 further classes were observed with fewer than 10 measured events and are not published. See how FSM ranks against every other measured name →
That’s how FSM usually reacts — get an email when it moves on news →Email me when FSM moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to FSM's baseline. Nothing else.
Recent FSM events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K FORTUNA MINING CORP. For: Oct 13 | SEC filing · Form 6-K | SEC EDGAR | +0.65% | -2.31% | |
| Fortuna intersects 7.8 g/t gold over 12.8 meters at Southern Arc, Diamba Sud, and advances exploration at Bambadji, Senegal | Press release | GlobeNewswire | +0.65% | -2.31% | |
| Form 6-K FORTUNA MINING CORP. For: Oct 07 | SEC filing · Form 6-K | SEC EDGAR | -1.03% | -4.75% | |
| Form 6-K FORTUNA MINING CORP. For: Sep 24 | SEC filing · Form 6-K | SEC EDGAR | -0.04% | +0.48% | |
| Fortuna CEO to present at Mining Forum Americas 2026 | Press release | GlobeNewswire | -0.61% | -0.43% | |
| Form SD FORTUNA MINING CORP. | SEC filing · Form SD | SEC EDGAR | -0.25% | -1.34% | |
| Form 6-K FORTUNA MINING CORP. For: Aug 10 | SEC filing · Form 6-K | SEC EDGAR | -0.75% | +1.50% | |
| Form 6-K FORTUNA MINING CORP. For: Aug 05 | SEC filing · Form 6-K | SEC EDGAR | +2.35% | +2.25% | |
| Form 6-K FORTUNA MINING CORP. For: Jul 30 | SEC filing · Form 6-K | SEC EDGAR | -0.12% | +1.56% | |
| Fortuna Approves 30% Capacity Expansion of the Séguéla Gold Mine in Côte d’Ivoire | Press release | GlobeNewswire | -1.92% | +2.21% | |
| Form 6-K FORTUNA MINING CORP. For: Jul 23 | SEC filing · Form 6-K | SEC EDGAR | -0.12% | +1.63% | |
| Form 6-K FORTUNA MINING CORP. For: Jul 13 | SEC filing · Form 6-K | SEC EDGAR | +0.12% | +0.78% | |
| Form 6-K FORTUNA MINING CORP. For: Jul 09 | SEC filing · Form 6-K | SEC EDGAR | -0.18% | +1.72% | |
| Form 6-K FORTUNA MINING CORP. For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | -0.94% | -0.24% | |
| Form 6-K FORTUNA MINING CORP. For: Jun 25 | SEC filing · Form 6-K | SEC EDGAR | +1.06% | +0.71% | |
| Form 6-K FORTUNA MINING CORP. For: Jun 15 | SEC filing · Form 6-K | SEC EDGAR | -0.26% | -1.10% | |
| Form 6-K FORTUNA MINING CORP. For: May 28 | SEC filing · Form 6-K | SEC EDGAR | -0.05% | +0.31% | |
| Form 6-K FORTUNA MINING CORP. For: May 20 | SEC filing · Form 6-K | SEC EDGAR | +0.16% | +0.59% | |
| Form 6-K FORTUNA MINING CORP. For: May 06 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | -5.77% | |
| Form 6-K FORTUNA MINING CORP. For: Apr 23 | SEC filing · Form 6-K | SEC EDGAR | -0.10% | -1.22% | |
| Form 6-K FORTUNA MINING CORP. For: Apr 22 | SEC filing · Form 6-K | SEC EDGAR | -0.14% | -0.39% | |
| Form 6-K FORTUNA MINING CORP. For: Apr 20 | SEC filing · Form 6-K | SEC EDGAR | +0.05% | -0.05% | |
| Form 6-K FORTUNA MINING CORP. For: Apr 17 | SEC filing · Form 6-K | SEC EDGAR | +0.52% | -2.22% | |
| Fortuna Renews Share Buyback Program | Press release | GlobeNewswire | +2.75% | -0.46% | |
| Form 6-K FORTUNA MINING CORP. For: Apr 09 | SEC filing · Form 6-K | SEC EDGAR | +0.63% | +1.02% | |
| Form 6-K FORTUNA MINING CORP. For: Apr 02 | SEC filing · Form 6-K | SEC EDGAR | +0.49% | +0.05% | |
| Form 40-F FORTUNA MINING CORP. For: Dec 31 | SEC filing · Form 40-F | SEC EDGAR | +0.27% | +0.27% | |
| Form 6-K FORTUNA MINING CORP. For: Mar 26 | SEC filing · Form 6-K | SEC EDGAR | +0.44% | +4.50% | |
| Fortuna files Form 40-F, Annual Report | Press release | GlobeNewswire | +0.44% | +4.50% | |
| Form 6-K FORTUNA MINING CORP. For: Mar 23 | SEC filing · Form 6-K | SEC EDGAR | -0.11% | +3.72% | |
| Form 6-K FORTUNA MINING CORP. For: Feb 25 | SEC filing · Form 6-K | SEC EDGAR | +0.11% | -2.07% | |
| Form 6-K FORTUNA MINING CORP. For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.23% | +0.14% | |
| Form 6-K FORTUNA MINING CORP. For: Feb 19 | SEC filing · Form 6-K | SEC EDGAR | +0.27% | -1.13% | |
| Form 6-K FORTUNA MINING CORP. For: Feb 12 | SEC filing · Form 6-K | SEC EDGAR | -0.19% | -2.21% | |
| Fortuna Extends High Grade Gold Mineralization at Sunbird, Including 6.1 g/t Au over 18.9 meters, Séguéla Mine, Côte d’Ivoire | Press release | GlobeNewswire | +0.31% | -8.22% | |
| Form 6-K FORTUNA MINING CORP. For: Feb 11 | SEC filing · Form 6-K | SEC EDGAR | -0.45% | +2.61% | |
| Form 6-K FORTUNA MINING CORP. For: Feb 10 | SEC filing · Form 6-K | SEC EDGAR | -0.27% | +0.50% | |
| Fortuna Submits Exploitation Permit Application for the Diamba Sud Gold Project, Senegal | Press release | GlobeNewswire | +1.10% | +1.74% | |
| Form 6-K FORTUNA MINING CORP. For: Jan 20 | SEC filing · Form 6-K | SEC EDGAR | +0.75% | +1.70% | |
| Form 6-K FORTUNA MINING CORP. For: Jan 15 | SEC filing · Form 6-K | SEC EDGAR | +0.25% | +0.74% | |
| Form 6-K FORTUNA MINING CORP. For: Jan 08 | SEC filing · Form 6-K | SEC EDGAR | +0.30% | +0.20% | |
| Form 6-K FORTUNA MINING CORP. For: Dec 08 | SEC filing · Form 6-K | SEC EDGAR | +0.32% | -1.15% | |
| Form 6-K FORTUNA MINING CORP. For: Dec 03 | SEC filing · Form 6-K | SEC EDGAR | +0.47% | +0.26% | |
| Form 6-K FORTUNA MINING CORP. For: Nov 26 | SEC filing · Form 6-K | SEC EDGAR | +1.13% | +2.33% | |
| Form 6-K FORTUNA MINING CORP. For: Nov 18 | SEC filing · Form 6-K | SEC EDGAR | +1.41% | +0.24% | |
| Form 6-K FORTUNA MINING CORP. For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +0.68% | -1.48% | |
| Form 6-K FORTUNA MINING CORP. For: Oct 30 | SEC filing · Form 6-K | SEC EDGAR | -0.48% | +0.06% | |
| Form 6-K FORTUNA MINING CORP. For: Oct 27 | SEC filing · Form 6-K | SEC EDGAR | +0.06% | +2.19% | |
| Form 6-K FORTUNA MINING CORP. For: Oct 15 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | -1.48% | |
| Form 6-K FORTUNA MINING CORP. For: Oct 08 | SEC filing · Form 6-K | SEC EDGAR | +0.16% | -1.00% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the FSM section they belong to.
Where else FSM is measured.
FSM earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| United States Antimony Corporation (UAMY) | 356 | -0.79% | 37% |
| CF Industries Holdings, Inc. (CF) | 355 | -0.17% | 44% |
| NYRSTAR NV UNSP/ADR (NYRSY) | 351 | 0.00% | 0% |
| Eldorado Gold Corporation Ordinary Shares (EGO) | 349 | -0.21% | 40% |
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 Basic Materials names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Fortuna Mining Corp. Common Shares's median reaction calculated?
Every labeled FSM 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 354 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. 54% of FSM'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 FSM'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.