STAR COPPER CORP (STCUF)
STCUF moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How STCUF actually reacts to news — the realized, point-in-time move the market made, measured across 67 labeled events over the last three years with zero look-ahead.
STCUF’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.60% | 34% | 64 |
| 30-min | 0.00% | 49% | 67 |
| 60-min | 0.00% | 49% | 67 |
| to close | 0.00% | 47% | 62 |
| Middle 50% of STCUF reactions | -1.83% to +3.14% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 67 |
Half of all STAR COPPER CORP news events land between -1.83% and +3.14% 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 STCUF moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to STCUF's baseline. Nothing else.
Recent STCUF events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Star Copper Advances Western Extension Drilling at Star Main | Press release | ACCESS Newswire | -1.79% | -0.18% | |
| Star Copper Completes Seven Northeast Step-Out Drill Holes at Star Main | Press release | ACCESS Newswire | +0.00% | +3.73% | |
| Star Copper Completes First Four Drill Holes Advancing District-Scale Discovery Strategy | Press release | ACCESS Newswire | +7.71% | +6.73% | |
| Star Copper Begins Step-Out Drilling at Star Main Location to Test Northeast Extension of Hypogene System | Press release | ACCESS Newswire | -2.65% | +0.65% | |
| Star Copper Expands Copper-Gold Portfolio with Two Advanced District-Scale Exploration Assets in British Columbia | Press release | ACCESS Newswire | -3.99% | -2.79% | |
| Star Copper Extends Copper Creek Drill Hole Beyond Planned Depth After Intersecting Mineralized System | Press release | ACCESS Newswire | +14.37% | +12.26% | |
| Star Copper District-Scale Campaign Underway with Inaugural Drilling at Star East and Return to Copper Creek | Press release | ACCESS Newswire | +3.40% | +5.00% | |
| Star Copper Begins Drilling at Star East Target as 15,000 Metre 2026 Exploration Campaign Gets Underway | Press release | ACCESS Newswire | +0.24% | +4.48% | |
| Star Copper Announces Early Season Mobilization and Drill Program Update at Star Project | Press release | ACCESS Newswire | -0.19% | +6.18% | |
| Star Copper Engages former Teck Resources Exploration Manager Klaus Heppe as Strategic Advisor | Press release | ACCESS Newswire | -0.67% | -0.12% | |
| Star Copper Announces Agreement with Zimtu Capital Corp. | Press release | ACCESS Newswire | +6.56% | +5.95% | |
| Star Copper Multi Target Drill Pad Construction Underway in Preparation for 15,000 Metre Drill Program | Press release | ACCESS Newswire | -1.36% | -2.00% | |
| Star Copper to Present at the Emerging Growth Conference on May 7, 2026 | Press release | ACCESS Newswire | — | +0.78% | |
| Star Copper Completes Copperline Project Inaugural 2025 Field Program at Omineca Mining Division, BC | Press release | ACCESS Newswire | -3.56% | -4.60% | |
| Star Copper Fully Funded 15,000 Metre Drill Program Targets Maiden Resource in 2026 | Press release | ACCESS Newswire | +4.82% | -1.21% | |
| Star Copper Announces Closing of Charity Flow-Through Unit Private Placement | Press release | ACCESS Newswire | -6.13% | -6.71% | |
| Star Copper Advances Integrated 3D Geological Modeling to Position 2026 Drill Season As Transformational | Press release | ACCESS Newswire | -2.78% | +3.74% | |
| Star Copper Confirms Copper Creek Mineralization | Press release | ACCESS Newswire | -4.67% | -3.52% | |
| Star Copper Reports First Phase 2 Drill Results Extending Mineralization to West, North and South | Press release | ACCESS Newswire | -0.89% | -2.44% | |
| Star Copper Announces Closing of Oversubscribed Flow-Through Share Private Placement | Press release | ACCESS Newswire | — | -1.06% | |
| Star Copper Announces Upsize To Flow Through Financing | Press release | ACCESS Newswire | -5.88% | -5.88% | |
| Star Copper Congratulates Doubleview Gold's Mineral Resource Estimate Boosting Interest Across Entire Region | Press release | ACCESS Newswire | +0.63% | +2.53% | |
| Star Copper Announces $5,000,000 Flow-Through Share Financing to Fund Aggressive 2026 Drill Program; Phase 2 (2025) Drill Results Pending | Press release | ACCESS Newswire | +2.75% | +0.00% | |
| Star Copper to Deploy Advanced Deep-Penetrating 3D IP to Expedite 2026 Drill Program | Press release | ACCESS Newswire | +0.00% | +2.54% | |
| Star Copper Completes Copperline Field Program with Drill Permit Submitted for 2026 | Press release | ACCESS Newswire | +9.11% | +8.35% | |
| Star Copper Announces Grant of RSUs, Stock Options and PSUs | Press release | ACCESS Newswire | -3.70% | -6.56% | |
| Star Copper Reports Balance of Phase 1 Drill Results Extending Supergene Zone Southwest | Press release | ACCESS Newswire | +0.96% | -3.27% | |
| Star Copper Concludes Drill Season with Strong Balance Sheet and Momentum into 2026 | Press release | ACCESS Newswire | -0.42% | -0.44% | |
| Star Copper Advances Satellite Target Located 1.5 Km from Star Main Deposit; Arranges Non-Brokered Flow Through Private Placement | Press release | ACCESS Newswire | -0.52% | -4.17% | |
| Star Copper Announces $3 Million Non-Brokered LIFE Offering | Press release | ACCESS Newswire | — | -4.26% | |
| Star Copper Advancing Canada's Next Cu-Au Porphyry Discovery with Completion of Three Step-Out Holes at Star Main | Press release | ACCESS Newswire | -2.35% | -1.18% | |
| Star Copper Confirms Copper Creek Mineralized Zone | Press release | ACCESS Newswire | +2.48% | +2.83% | |
| Star Copper Kicks Off Inaugural Drilling at Star North Target | Press release | ACCESS Newswire | +1.22% | +0.23% | |
| Star Copper Reports "Drill is Turning" at Copper Creek Target in Golden Triangle of BC | Press release | ACCESS Newswire | +0.51% | -6.17% | |
| Star Copper Drill Program Mobilizes Additional Rig at Copper Creek to Test High Value Historic Target in BC | Press release | ACCESS Newswire | -1.91% | -0.98% | |
| Star Copper Phase 2 Drilling Continues to De-Risk and Expand Footprint to West and North at Star Main System | Press release | ACCESS Newswire | +5.91% | +11.25% | |
| Star Copper Reports Overlimit Samples, Increases Grade Profile from Surface | Press release | ACCESS Newswire | -2.36% | -2.55% | |
| Star Copper Receives Excellent Preliminary Assay Results and Applauds Proposed Nation-Building Golden Triangle Investment | Press release | ACCESS Newswire | -1.85% | +0.69% | |
| Star Copper Commences Phase 2 Drill Campaign and Advances Copper Creek Target Activities | Press release | ACCESS Newswire | -0.15% | -3.76% | |
| Star Copper Provides Summary of Phase 1 Exploration Activities at Star Project in Northwestern British Columbia | Press release | ACCESS Newswire | -3.96% | -3.96% | |
| Star Copper Phase 2 Drill Preparation Uncovers Significant Mineralization at Surface | Press release | ACCESS Newswire | +2.00% | +0.00% | |
| Star Copper Announces Completion of $4 Million LIFE Offering | Press release | ACCESS Newswire | +5.04% | -6.57% | |
| Star Copper Nears Completion of Phase 1 Drilling at Star Project with Strong Structural and Mineralization Insights | Press release | ACCESS Newswire | -1.13% | — | |
| Star Copper Acquires Copperline Property in British Columbia | Press release | ACCESS Newswire | -1.13% | — | |
| Star Copper Confirms Southwest Expansion of Mineralization at Star Main Target | Press release | ACCESS Newswire | -6.52% | — | |
| Star Copper Announces Plans for Fully Funded Fall 2025 Phase 2 Drill Campaign in Golden Triangle of BC | Press release | ACCESS Newswire | -0.14% | +5.71% | |
| Star Copper Gains Confidence for Robust Porphyry System at Depth Across Star Deposit in Golden Triangle Region | Press release | ACCESS Newswire | -0.85% | — | |
| Star Copper Announces Amended and Restated $4 Million LIFE Offering | Press release | ACCESS Newswire | -0.85% | — | |
| Star Copper Responds to OTC Markets Request on Recent Promotional Activity | Press release | ACCESS Newswire | -2.11% | -3.67% | |
| Star Copper Expands Existing Footprint of Star Project and Confirms Broad Mineralized System | Press release | ACCESS Newswire | -2.71% | +0.66% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the STCUF section they belong to.
Where else STCUF is measured.
STCUF earnings → · Analyst actions → · SEC filings →
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 STAR COPPER CORP's median reaction calculated?
Every labeled STCUF 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 67 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. 49% of STCUF'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 STCUF'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.