Hudbay Minerals is trading at $22.50, up 4.95% in pre-market on November 4, amid broader U.S. market strength; no company-specific announcement explaining the move was identified. - It closed at $21.44 on November 3. - The S&P 500, Nasdaq and Dow were higher, while the materials sector was reported down pre-market. - Q3 results are scheduled for November 12.