Montero Mining shares surged 89.5% on Friday amid a massive volume spike, with no reason given.

Montero Mining and Exploration (CVE:MON) shares jumped 89.5% on Friday, closing at C$0.54 after reaching a high of C$0.60, driven by a 1,755% spike in trading volume to 942,284 shares. The company, which owns the Avispa Copper-Molybdenum Project in northern Chile, has a market cap of C$4.59 million and faces high financial risk, with a debt-to-equity ratio of 494.64, a current ratio of 0.10, and a beta of 1.52. The stock’s 50-day moving average is C$0.29, while the 200-day average is C$0.78. The cause of the surge was not disclosed.