Why fund managers are excited about Firefly Metals' Green Bay copper discovery

Copper developer Firefly Metals has delivered a series of outstanding drill results at its Green Bay project in Newfoundland, with Endeavor Asset Management's October 2025 Monthly Report detailing shares rallying 42% in a single month, closing at $1.90 for an 88% gain on the fund's initial $1.01 purchase price, driven by a plethora of drill results that kept expanding the ore body's dimensions.

An emerging high-grade core within a large existing resource

SG Hiscock & Company's October 2025 Monthly Report detailed the specific drill results behind the re-rating: standout intercepts including 43.6 metres at 7.6% copper equivalent and 44.5 metres at 3.7% copper equivalent at the Ming Mine, confirming an approximately 800-metre-long high-grade core emerging within the broader 59 million tonne, 2.0% copper equivalent Green Bay resource, with the zone remaining open along strike and down plunge. Perennial Partners' own October 2025 report noted the thick, high-grade intersections sat well below the existing resource, implying a substantial increase at the next resource update.

Endeavor Asset Management's report flagged two specific near-term catalysts investors were anticipating before year-end 2025: an updated Mineral Resource Estimate expected to reflect the expanded high-grade core, and the monetisation or spin-off of Firefly's non-core gold project, unlocking value from an asset outside the core copper growth story. LSN Capital Partners' December 2025 Monthly Report tied the stock's continued strength to a broader copper price surge, with prices reaching US$5.65 per pound, a level not seen in decades, reinforcing copper as a key structural beneficiary of electrification, grid investment and AI-driven infrastructure demand.

What managers are watching next

Endeavor Asset Management's November 2025 report noted the stock eased after its strong October run, coming under pressure following a broker downgrade despite the copper price holding broadly steady, though the same broker subsequently upgraded its view. With the resource upgrade and gold project spin-off both anticipated catalysts, and the Green Bay orebody still open along strike and down plunge, further drilling results remain the key ongoing driver for the stock.