Price Move History
- Daily moves over 5%
- 90 252 sessions, September 26, 2025 to September 28, 2026
- Largest daily move
- -17.6% close of October 21, 2025
- 1-year change
- +30.7% closing prices, September 26, 2025 to September 28, 2026
Company Description
Guardian Metal Resources plc is a U.S.-focused exploration-stage critical minerals company focused on tungsten projects in Nevada, United States. The company is organized around mineral exploration and potential future development rather than current mining production. Its principal tungsten asset is the Pilot Mountain project, followed by the Tempiute project, both of which are located in historic tungsten districts with documented occurrences of mineralization and prior tungsten mining activity by third parties.
The company's project portfolio is centered on tungsten, a metal used in defense, energy transition, technology, and industrial applications. Guardian Metal's Nevada focus includes assets and claims in established mining areas, including additional claims acquired in the Walker Lane Mineral Belt to form the Pilot North Tungsten Project. At Tempiute, the company has expanded its claim position around a historic mining area that includes the Schofield open-pit mine.
Guardian Metal operates as an exploration-stage issuer, so its business model is based on acquiring, staking, exploring, and advancing mineral projects toward potential development. Company updates typically address claim acquisitions, drilling programs, mineralization observations, project advancement, financing activities, capital structure, voting rights, and board or management changes. The company does not describe itself as a current tungsten producer in the provided materials.
The company's ordinary shares trade on AIM under the ticker GMET. Its U.S. market presence has included OTC quotation under GMTLF and American Depositary Shares associated with the NYSE American ticker GMTL. The ADS structure represents ordinary shares of the U.K. issuer and reflects Guardian Metal's access to U.S. capital markets while its project base remains concentrated in Nevada.
Stock Performance
GUARDIAN METAL RES PLC (GMTLF) closed at $1.83 on September 28, 2026. Over the past 12 months, the price has gained 30.7%.
GMTLF Metrics & Rankings
Price returns through September 28, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
GUARDIAN METAL RES PLC has 10 recent news articles. Of the recent coverage, 5 articles coincided with positive price movement and 5 with negative movement. Key topics include management, IPO, offering. View all GMTLF news →
SEC Filings
Financial Highlights
Upcoming Events
Initial production target
GUARDIAN METAL RES PLC has 1 upcoming scheduled event. The next event, "Initial production target", is scheduled for January 1, 2028 (in 459 days). Investors can track these dates to stay informed about potential catalysts that may affect the GMTLF stock price.
Short Interest History
Short interest in GUARDIAN METAL RES PLC (GMTLF) currently stands at 17.5 thousand shares, up 553.4% from the previous reporting period, representing 0.0% of the float. Since September 2025, short interest has decreased by 88.6%.
Days to Cover History
Days to cover for GUARDIAN METAL RES PLC (GMTLF) currently stands at 1.0 days. The ratio is the reported short interest divided by the average daily trading volume.
GMTLF Company Profile & Sector Positioning
GUARDIAN METAL RES PLC (GMTLF) operates in the Other Precious Metals & Mining industry within the broader Basic Materials sector and is listed on the OTC.
Investors comparing GMTLF often look at related companies in the same sector, including BLACKROCK SILVER CORP (BKRRF), SIDNEY RESOURCES CORP (SDRC), SIERRA MADRE GOLD SILVER (SMDRF), SILVER TIGER METALS INC (SLVTF), and MILLENNIAL POTASH CORP (MLPNF). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate GMTLF's relative position within its industry.