Iamgold Corporation Ordinary Shares (IAG)
IAG moved a median of +0.04% 30 minutes after news, and +0.04% by the close. How IAG actually reacts to news — the realized, point-in-time move the market made, measured across 228 labeled events over the last three years with zero look-ahead.
IAG’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 49% | 227 |
| 30-min | +0.04% | 52% | 227 |
| 60-min | -0.00% | 49% | 227 |
| to close | +0.04% | 50% | 225 |
| Middle 50% of IAG reactions | -0.92% to +1.26% |
|---|---|
| Median reaction (30-min) | +0.04% |
| Measured reactions | 228 |
Half of all Iamgold Corporation Ordinary Shares news events land between -0.92% and +1.26% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How IAG reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 28 | +0.40% | 71% | -0.30% |
| Analyst downgrades | 14 | +0.23% | 50% | +1.24% |
| Rating reiterations | 40 | -0.04% | 43% | -0.23% |
| Price-target raises | 24 | -0.11% | 29% | -0.20% |
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. 2 further classes were observed with fewer than 10 measured events and are not published. See how IAG ranks against every other measured name →
That’s how IAG usually reacts — get an email when it moves on news →Email me when IAG moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to IAG's baseline. Nothing else.
Recent IAG events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Orezone Reports Third Quarter 2026 Production Results | Press release | GlobeNewswire | +0.45% | -3.35% | |
| Form 6-K IAMGOLD CORP For: Oct 05 | SEC filing · Form 6-K | SEC EDGAR | -0.38% | +0.11% | |
| Orezone Announces Life-of-Mine Plan for Casa Berardi Operations | Press release | GlobeNewswire | +0.70% | -1.06% | |
| Form 6-K IAMGOLD CORP For: Sep 09 | SEC filing · Form 6-K | SEC EDGAR | +0.81% | +1.36% | |
| Orezone Gold Reports Second Quarter 2026 Results | Press release | GlobeNewswire | -0.06% | -0.84% | |
| Form 6-K IAMGOLD CORP For: Aug 10 | SEC filing · Form 6-K | SEC EDGAR | -0.16% | -1.78% | |
| Orezone Reports Positive Drill Results at Bomboré Demonstrating Growth Potential Ahead of Mineral Resource and Reserve Update in Q1 2027 | Press release | GlobeNewswire | +0.68% | -0.87% | |
| Form 6-K IAMGOLD CORP For: Aug 06 | SEC filing · Form 6-K | SEC EDGAR | +2.34% | +4.75% | |
| Form 6-K IAMGOLD CORP For: Aug 06 | SEC filing · Form 6-K | SEC EDGAR | +2.34% | +4.75% | |
| Form 6-K IAMGOLD CORP For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | +2.34% | +4.75% | |
| Orezone Resumes Operations at Casa Berardi; Reaffirms 2026 Production Guidance | Press release | GlobeNewswire | +0.57% | -0.92% | |
| Orezone Reports Q2 2026 Production and Provides Casa Berardi Operations Update | Press release | GlobeNewswire | -0.35% | -2.66% | |
| Form 6-K IAMGOLD CORP For: Jul 13 | SEC filing · Form 6-K | SEC EDGAR | -0.35% | -2.66% | |
| Orezone Provides 2026 Guidance for Casa Berardi | Press release | GlobeNewswire | -0.12% | -3.93% | |
| Orezone Announces AGM Results | Press release | GlobeNewswire | +0.50% | -0.75% | |
| Form 6-K IAMGOLD CORP For: Jun 17 | SEC filing · Form 6-K | SEC EDGAR | +0.03% | +2.11% | |
| Form 6-K IAMGOLD CORP For: Jun 17 | SEC filing · Form 6-K | SEC EDGAR | +0.33% | -6.22% | |
| Form 6-K IAMGOLD CORP For: Jun 01 | SEC filing · Form 6-K | SEC EDGAR | +0.81% | +0.87% | |
| Orezone Reports First Set of Drill Results from Casa Berardi Mine Including 16.10g/t Au over 6.7m and 6.47g/t Au over 21.5m | Press release | GlobeNewswire | +0.66% | -2.29% | |
| Form SD IAMGOLD CORP | SEC filing · Form SD | SEC EDGAR | +0.35% | -1.62% | |
| Orezone Announces Management Appointments | Press release | GlobeNewswire | -0.16% | +0.32% | |
| Orezone Gold Reports First Quarter 2026 Results | Press release | GlobeNewswire | -1.07% | -1.12% | |
| Form 6-K IAMGOLD CORP For: May 05 | SEC filing · Form 6-K | SEC EDGAR | +0.60% | +1.59% | |
| Orezone Provides Notice of First Quarter 2026 Results | Press release | GlobeNewswire | +0.00% | -4.88% | |
| Form 6-K IAMGOLD CORP For: Mar 31 | SEC filing · Form 6-K | SEC EDGAR | +0.60% | +1.59% | |
| Form 6-K IAMGOLD CORP For: Apr 27 | SEC filing · Form 6-K | SEC EDGAR | +0.10% | +1.91% | |
| Orezone Reports First Quarter 2026 Gold Production | Press release | GlobeNewswire | -1.06% | +0.59% | |
| Form 6-K IAMGOLD CORP For: Apr 10 | SEC filing · Form 6-K | SEC EDGAR | -0.20% | +1.56% | |
| Form 6-K IAMGOLD CORP For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +0.21% | +2.30% | |
| Form 6-K IAMGOLD CORP For: May 05 | SEC filing · Form 6-K | SEC EDGAR | +0.21% | +2.30% | |
| Orezone Gold Completes Strategic Acquisition of Casa Berardi Gold Mine and Quebec Exploration Portfolio | Press release | GlobeNewswire | +1.91% | -2.08% | |
| Orezone Gold Reports Fourth Quarter 2025 Results and Provides 2026 Guidance | Press release | GlobeNewswire | +1.91% | -2.08% | |
| Orezone to Release 2025 Financial Results on March 25, 2026 and Files ASX Appendix 4E | Press release | GlobeNewswire | -0.28% | -1.78% | |
| Form 6-K IAMGOLD CORP For: Feb 23 | SEC filing · Form 6-K | SEC EDGAR | -0.13% | +0.31% | |
| Form 40-F IAMGOLD CORP For: Dec 31 | SEC filing · Form 40-F | SEC EDGAR | +2.56% | +1.00% | |
| Form 6-K IAMGOLD CORP For: Dec 31 | SEC filing · Form 6-K | SEC EDGAR | +2.56% | +1.00% | |
| Form 6-K IAMGOLD CORP For: Feb 17 | SEC filing · Form 6-K | SEC EDGAR | +2.56% | +1.00% | |
| Form 6-K IAMGOLD CORP For: Feb 18 | SEC filing · Form 6-K | SEC EDGAR | +2.56% | +1.00% | |
| Orezone Gold Announces Transformational Expansion into Canada with the Acquisition of the Casa Berardi Gold Mine | Press release | GlobeNewswire | -0.43% | -3.71% | |
| Form 6-K IAMGOLD CORP For: Jan 19 | SEC filing · Form 6-K | SEC EDGAR | +0.52% | +2.75% | |
| Form 6-K IAMGOLD CORP For: Dec 22 | SEC filing · Form 6-K | SEC EDGAR | -0.03% | +0.57% | |
| Form 6-K IAMGOLD CORP For: Dec 19 | SEC filing · Form 6-K | SEC EDGAR | +1.67% | +2.07% | |
| Orezone Reports First Gold from Bomboré Hard Rock Expansion | Press release | GlobeNewswire | -0.03% | -0.38% | |
| Form 6-K IAMGOLD CORP For: Dec 09 | SEC filing · Form 6-K | SEC EDGAR | -0.66% | +1.91% | |
| Orezone Intercepts 3.28 g/t Gold Over 26.00m and 5.55 g/t Gold Over 15.00m at P17 Zone in Advance of Hard Rock First Gold | Press release | GlobeNewswire | +0.07% | +1.34% | |
| Orezone Gold Reports Third Quarter 2025 Results | Press release | GlobeNewswire | +0.97% | — | |
| Form 6-K IAMGOLD CORP For: Nov 04 | SEC filing · Form 6-K | SEC EDGAR | +2.43% | -3.56% | |
| Form 6-K IAMGOLD CORP For: Sep 30 | SEC filing · Form 6-K | SEC EDGAR | +2.43% | -3.56% | |
| Orezone Provides Notice of Third Quarter 2025 Results | Press release | GlobeNewswire | +2.43% | -3.56% | |
| Form 6-K IAMGOLD CORP For: Oct 20 | SEC filing · Form 6-K | SEC EDGAR | -0.75% | -0.29% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the IAG section they belong to.
Where else IAG is measured.
IAG earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| GOLDEN QUEEN MINING (GQMNF) | 230 | 0.00% | 36% |
| Arch Resources, Inc. Class A (ARCH) | 228 | -0.07% | 46% |
| Denison Mines Corp Ordinary Shares (Canada) (DNN) | 227 | +0.30% | 54% |
| AURYN RESOURCES INC (AUG) | 225 | 0.00% | 43% |
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 Iamgold Corporation Ordinary Shares's median reaction calculated?
Every labeled IAG 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 228 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. 52% of IAG'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 IAG'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.