Cameco Corporation (CCJ)
CCJ moved a median of -0.10% 30 minutes after news, and -0.23% by the close. How CCJ actually reacts to news — the realized, point-in-time move the market made, measured across 171 labeled events over the last three years with zero look-ahead.
CCJ’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.08% | 41% | 170 |
| 30-min | -0.10% | 46% | 171 |
| 60-min | -0.18% | 43% | 171 |
| to close | -0.23% | 42% | 171 |
| Middle 50% of CCJ reactions | -0.81% to +0.69% |
|---|---|
| Median reaction (30-min) | -0.10% |
| Measured reactions | 171 |
Half of all Cameco Corporation news events land between -0.81% and +0.69% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How CCJ reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 24 | +0.83% | 67% | +1.15% |
| Analyst downgrades | 13 | -0.85% | 46% | -1.26% |
| Coverage initiations | 28 | +0.13% | 54% | -0.16% |
| Rating reiterations | 48 | +0.34% | 60% | +0.29% |
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 CCJ ranks against every other measured name →
That’s how CCJ usually reacts — get an email when it moves on news →Email me when CCJ moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CCJ's baseline. Nothing else.
Recent CCJ events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K CAMECO CORP For: Oct 01 | SEC filing · Form 6-K | SEC EDGAR | +0.07% | +0.40% | |
| Cameco Acknowledges United States and Republic of Korea Announcement of Framework for the Deployment of Nuclear Power | Press release | Business Wire | -0.05% | -1.25% | |
| PURECORE COMMENCES DATA COMPILATION AND TARGET GENERATION AT YURCHISON URANIUM PROPERTY | Press release | Canada Newswire | -0.12% | -0.14% | |
| Cameco Announces Westinghouse’s Confidential Submission of Draft Registration Statement for Proposed Initial Public Offering | Press release | Business Wire | -1.42% | -3.60% | |
| Cameco Reports Second Quarter Results: Year-to-Date Performance on Track; Production Outlook Unchanged; Strategically Positioned Across the Nuclear Fuel Cycle; Significant Support for Nuclear Energy Reinforces Stronger Long-Term Uranium Prices | Press release | Business Wire | -1.42% | -3.60% | |
| Form 6-K CAMECO CORP For: Jul 31 | SEC filing · Form 6-K | SEC EDGAR | -1.42% | -3.60% | |
| Form 6-K CAMECO CORP For: Jul 15 | SEC filing · Form 6-K | SEC EDGAR | +0.01% | -0.13% | |
| Cigar Lake Mine Resumes Production | Press release | Business Wire | -0.23% | -1.68% | |
| Form 6-K CAMECO CORP For: Jul 06 | SEC filing · Form 6-K | SEC EDGAR | +0.04% | -0.86% | |
| Cameco Closes Deal to Increase Ownership in Cigar Lake Mine | Press release | Business Wire | +1.59% | -0.36% | |
| Form 6-K CAMECO CORP For: Jul 02 | SEC filing · Form 6-K | SEC EDGAR | -0.05% | -1.12% | |
| Cigar Lake Operation Update | Press release | Business Wire | -0.20% | -4.10% | |
| Form 6-K CAMECO CORP For: Jun 26 | SEC filing · Form 6-K | SEC EDGAR | +1.01% | -0.38% | |
| Cameco Releases 2025 Sustainability Report | Press release | Business Wire | +0.02% | +1.92% | |
| Form 6-K CAMECO CORP For: Jun 23 | SEC filing · Form 6-K | SEC EDGAR | -0.02% | +0.61% | |
| US Department of Energy to Jumpstart Nuclear Supply Chain and Accelerate Deployment of Westinghouse AP1000® reactors | Press release | Business Wire | -0.77% | -1.75% | |
| Form SD CAMECO CORP | SEC filing · Form SD | SEC EDGAR | -0.19% | +0.24% | |
| Cameco Increases Ownership Stake in Cigar Lake Mine | Press release | Business Wire | -1.05% | +1.59% | |
| Form 6-K CAMECO CORP For: Jun 01 | SEC filing · Form 6-K | SEC EDGAR | +2.50% | +6.81% | |
| Form 6-K CAMECO CORP For: May 28 | SEC filing · Form 6-K | SEC EDGAR | +0.09% | +4.23% | |
| Cameco Announces McArthur River/Key Lake Operation Resumes Production | Press release | Business Wire | +0.63% | +4.04% | |
| Form SD CAMECO CORP | SEC filing · Form SD | SEC EDGAR | -0.03% | +0.22% | |
| Form 6-K CAMECO CORP For: May 11 | SEC filing · Form 6-K | SEC EDGAR | +0.06% | -0.64% | |
| Northern Saskatchewan Operations Update | Press release | Business Wire | +0.76% | +5.39% | |
| Form 6-K CAMECO CORP For: May 08 | SEC filing · Form 6-K | SEC EDGAR | +0.47% | -0.03% | |
| Cameco Announces Election of Directors | Press release | Business Wire | -1.06% | -2.65% | |
| Cameco Reports First Quarter 2026 Results: Financial Results and Operational Execution Reflect Disciplined Strategy; Annual Guidance Unchanged; Nuclear Energy on Track for Long-Term Growth in Support of Global Demand | Press release | Business Wire | -1.17% | -6.34% | |
| Form 6-K CAMECO CORP For: May 05 | SEC filing · Form 6-K | SEC EDGAR | -1.17% | -6.34% | |
| Form 6-K CAMECO CORP For: Apr 02 | SEC filing · Form 6-K | SEC EDGAR | +0.56% | +0.83% | |
| Cameco Reports Document Filings | Press release | Business Wire | -0.79% | -4.53% | |
| Form 40-F CAMECO CORP For: Dec 31 | SEC filing · Form 40-F | SEC EDGAR | -0.79% | -4.53% | |
| Cameco Signs Long-Term Uranium Supply Agreement with India | Press release | Business Wire | -0.33% | +5.81% | |
| Form 6-K CAMECO CORP For: Mar 02 | SEC filing · Form 6-K | SEC EDGAR | +0.10% | +0.78% | |
| Cameco Announces 2025 Results; Solid Fourth Quarter and 2025 Performance; Increasing Long-Term Uranium Market Activity Reinforces Constructive Outlook; Disciplined Supply Strategy Expected to Position Company to Unlock Value From Growing Demand | Press release | Business Wire | -0.73% | -0.31% | |
| Form 6-K CAMECO CORP For: Feb 13 | SEC filing · Form 6-K | SEC EDGAR | -0.73% | -0.31% | |
| Form 6-K CAMECO CORP For: Jan 23 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | +0.64% | |
| Cameco announces third quarter results: financial performance on track for strong finish to the year; nuclear fundamentals strengthened by transformational partnership to deploy Westinghouse reactors in the US; annual dividend declared | Press release | Business Wire | -1.48% | +0.25% | |
| Form 6-K CAMECO CORP For: Nov 05 | SEC filing · Form 6-K | SEC EDGAR | -1.48% | +0.25% | |
| Form 6-K CAMECO CORP For: Oct 31 | SEC filing · Form 6-K | SEC EDGAR | +0.34% | +0.37% | |
| Cameco and Brookfield Establish Transformational Partnership With United States Government to Accelerate Deployment of Westinghouse Nuclear Reactors | Press release | Business Wire | +2.80% | +6.03% | |
| Form 6-K CAMECO CORP For: Oct 28 | SEC filing · Form 6-K | SEC EDGAR | +0.48% | +0.60% | |
| United States Government, Brookfield and Cameco announce transformational partnership to deliver long-term value using Westinghouse nuclear reactor technology | Press release | Business Wire | +2.80% | +6.03% | |
| Form 6-K CAMECO CORP For: Sep 15 | SEC filing · Form 6-K | SEC EDGAR | -0.60% | +6.32% | |
| Cameco Signs Long-Term UF6 Supply Agreement with Slovenské elektrárne | Press release | Business Wire | +0.66% | +9.96% | |
| Cameco Provides Production Update; Strategically Well-Positioned for Continued Long-Term Value Creation | Press release | Business Wire | +0.29% | -5.04% | |
| Form 6-K CAMECO CORP For: Aug 28 | SEC filing · Form 6-K | SEC EDGAR | +0.29% | -5.04% | |
| Cameco Q2 results: strong financial performance reflecting positive momentum for nuclear power; uranium average realized price benefitting from long-term contracting strategy; Westinghouse opportunities driving improved 2025 outlook | Press release | Business Wire | -2.39% | -6.14% | |
| Form 6-K CAMECO CORP For: Jul 31 | SEC filing · Form 6-K | SEC EDGAR | -2.39% | -6.14% | |
| Form 6-K CAMECO CORP For: Jun 27 | SEC filing · Form 6-K | SEC EDGAR | -0.09% | -1.20% | |
| Cameco Releases 2024 Sustainability Report | Press release | Business Wire | +0.46% | -1.29% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CCJ section they belong to.
Where else CCJ is measured.
CCJ earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| First Quantum Minerals (FM_TSE) | 172 | 0.00% | 49% |
| PALADIN ENERGY LTD (PALAF) | 172 | 0.00% | 42% |
| PV NANO CELL LTD (PVNNF) | 171 | 0.00% | 12% |
| Olympic Steel, Inc. (ZEUS) | 171 | -0.16% | 45% |
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 →
Every ticker we measure the same way24
Apple (AAPL)
How AAPL actually reacts to news, measured.
NVIDIA (NVDA)
How NVDA actually reacts to news, measured.
Tesla (TSLA)
How TSLA actually reacts to news, measured.
Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is Cameco Corporation's median reaction calculated?
Every labeled CCJ 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 171 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. 46% of CCJ'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 CCJ'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.