US Stock Market Move | Gunnison Copper (GUNN.US) debuts on the U.S. stock market, with its share price rising more than 19%.

On Monday, Gunnison Copper (GUNN.US) debuted on the U.S. stock market, with its share price rising more than 19% after the opening bell to $9.9, compared with an IPO price of $8.3. Gunnison Copper is a mining company focused on copper mine development and production, headquartered in Phoenix, Arizona, primarily conducting copper mining, processing, and resource development operations in southern Arizona. The company's main assets include the Johnson Camp copper mine, which is already in production, and its flagship project, the Gunnison Copper Project, which is advancing development. The Johnson Camp copper mine produces finished copper cathodes, supplying products to the U.S. defense and technology industries, including Amazon.com, Inc.'s cloud service (AWS). According to a preliminary economic assessment released in March 2026, the Gunnison project is expected to have a mine life of 21 years, with average annual copper production of approximately 175 million pounds, and total copper production over the entire mine life is expected to exceed 3.2 billion pounds.