International Isotopes Inc. (INIS)
INIS moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How INIS actually reacts to news — the realized, point-in-time move the market made, measured across 78 labeled events over the last three years with zero look-ahead.
INIS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 12% | 50 |
| 30-min | 0.00% | 21% | 52 |
| 60-min | 0.00% | 30% | 56 |
| to close | 0.00% | 35% | 77 |
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when INIS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to INIS's baseline. Nothing else.
Recent INIS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K RADNOSTIX INC For: Sep 28 | SEC filing · Form 8-K | SEC EDGAR | +9.09% | +18.18% | |
| Form S-8 RADNOSTIX INC | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +0.00% | |
| Radnostix, Inc. Reports FY2026 2nd Quarter and Six Months Results - Completes Execution of FDA 483 & Recall Actions, Restores Capsule Inventory, Completes Lucerno Dynamics Asset Acquisition | Press release | PR Newswire | — | +0.75% | |
| Form 10-Q RADNOSTIX INC For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.75% | |
| Form 8-K RADNOSTIX INC For: Jul 16 | SEC filing · Form 8-K | SEC EDGAR | +9.73% | +3.94% | |
| Radnostix Acquires Lucerno Dynamics Assets Expanding Radiopharma Medical Device Portfolio | Press release | PR Newswire | — | +0.00% | |
| Form 8-K RADNOSTIX INC For: Jun 25 | SEC filing · Form 8-K | SEC EDGAR | -16.07% | +14.75% | |
| Form DEF 14A RADNOSTIX INC For: Jul 16 | SEC filing · Form DEF | SEC EDGAR | — | +0.00% | |
| Form DEFA14A RADNOSTIX INC | SEC filing · Form DEFA14A | SEC EDGAR | — | +0.00% | |
| Radnostix, Inc. Reports FY2026 Q1 Results - Revenue Declines 27% Primarily Due to Voluntary Product Recalls, Isotope Supply Disruptions, and Planned Operational Shutdown | Press release | PR Newswire | +0.00% | -2.35% | |
| Form 10-Q RADNOSTIX INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | — | +0.99% | |
| Form 8-K RADNOSTIX INC For: May 14 | SEC filing · Form 8-K | SEC EDGAR | — | +0.00% | |
| Form NT 10-Q RADNOSTIX INC For: Mar 31 | SEC filing · Form NT | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-K/A RADNOSTIX INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | — | +0.00% | |
| Radnostix, Inc. Reports FY2025 Results - Second-Highest Annual Revenue in Company History; Delivers Strong Growth in Calibration & Reference Products and Advances Key Product Launches in 2025 | Press release | PR Newswire | +2.81% | +0.00% | |
| Form 10-K RADNOSTIX INC For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +2.81% | +0.00% | |
| Form 8-K RADNOSTIX INC For: Mar 11 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.49% | |
| Mutual Termination of the Asset Purchase Agreement related to the Radnostix DUF6 Assets | Press release | PR Newswire | — | -17.99% | |
| Form 8-K INTERNATIONAL ISOTOPES For: Dec 23 | SEC filing · Form 8-K | SEC EDGAR | +22.55% | +11.36% | |
| International Isotopes Inc. Announces Company Name Change to Radnostix, Inc. | Press release | PR Newswire | +0.00% | +0.00% | |
| Form DEF 14C INTERNATIONAL ISOTOPES For: Nov 25 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-Q INTERNATIONAL ISOTOPES For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -3.77% | -8.65% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE THIRD QUARTER AND NINE MONTHS ENDED SEPTEMBER 30, 2025 | Press release | PR Newswire | — | +8.26% | |
| Form 8-K INTERNATIONAL ISOTOPES For: Oct 10 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +3.77% | |
| Form 10-Q INTERNATIONAL ISOTOPES For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -8.88% | -7.59% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE SECOND QUARTER AND SIX MONTHS ENDED JUNE 30, 2025 | Press release | PR Newswire | — | +11.64% | |
| Form 8-K INTERNATIONAL ISOTOPES For: Jul 10 | SEC filing · Form 8-K | SEC EDGAR | — | -1.11% | |
| Form DEF 14A INTERNATIONAL ISOTOPES For: Jul 10 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -0.76% | |
| Form DEFA14A INTERNATIONAL ISOTOPES | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -0.76% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE FIRST QUARTER 2025 | Press release | PR Newswire | — | +0.10% | |
| Form PRE 14A INTERNATIONAL ISOTOPES For: Jul 10 | SEC filing · Form PRE | SEC EDGAR | +0.00% | -2.00% | |
| Form 10-Q INTERNATIONAL ISOTOPES For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.32% | |
| Form 10-K/A INTERNATIONAL ISOTOPES For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +0.00% | |
| Form 10-K INTERNATIONAL ISOTOPES For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +6.89% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE FOURTH QUARTER AND FISCAL YEAR 2024 | Press release | PR Newswire | — | -5.36% | |
| International Isotopes, Inc. Expands Operational Footprint with Strategic Land Acquisition and Additional New Facility Lease Agreement | Press release | PR Newswire | — | -3.45% | |
| International Isotopes, Inc. Announces the Amendment of the Acquisition of the AMICI, Inc. Product Line | Press release | PR Newswire | +0.00% | +18.16% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE THIRD QUARTER AND FIRST NINE MONTHS OF 2024 | Press release | PR Newswire | +0.00% | +0.00% | |
| Form 10-Q INTERNATIONAL ISOTOPES For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | — | +0.00% | |
| Form 8-K INTERNATIONAL ISOTOPES For: Sep 26 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| International Isotopes Inc. and Phantech Medical Launch PhanQual to Revolutionize Calibration Sources for Pre-Clinical Imaging | Press release | PR Newswire | — | +0.00% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE SECOND QUARTER AND FIRST SIX MONTHS OF 2024 | Press release | PR Newswire | — | +0.00% | |
| Form 10-Q INTERNATIONAL ISOTOPES For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -9.49% | |
| Form 8-K INTERNATIONAL ISOTOPES For: Jul 10 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +10.55% | |
| Form DEF 14A INTERNATIONAL ISOTOPES For: Jul 10 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +0.00% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR THE FIRST QUARTER OF 2024 | Press release | PR Newswire | +0.00% | +0.00% | |
| Form 10-Q INTERNATIONAL ISOTOPES For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.00% | |
| Form DEF 14A INTERNATIONAL ISOTOPES For: Jul 10 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +3.37% | |
| INTERNATIONAL ISOTOPES INC. ANNOUNCES FISCAL RESULTS FOR FISCAL YEAR 2023 | Press release | PR Newswire | -29.83% | -2.31% | |
| Form 10-K INTERNATIONAL ISOTOPES For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -29.83% | -2.31% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the INIS section they belong to.
Where else INIS is measured.
INIS earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Gamida Cell Ltd. - Ordinary Shares (GMDA) | 78 | -2.45% | 28% |
| GROW SOLUTIONS HLDGS (GRSO) | 78 | 0.00% | 40% |
| APPLIED BIOSCIENCES CORP (APPB) | 77 | 0.00% | 11% |
| VITALIBIS INC (VCBD) | 76 | 0.00% | 25% |
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 International Isotopes Inc.'s median reaction calculated?
Every labeled INIS 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 78 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. 21% of INIS'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 INIS'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.