Hecla Mining To Be Added To S&P MidCap 400 Index, Effective December 22

Hecla Mining Company (NYSE:HL) today announced that it will be added to the S&P MidCap 400 Index, effective prior to the open of trading on December 22, 2025, according to an announcement by S&P Dow Jones Indices.

Inclusion in the S&P MidCap 400 reflects Hecla's strong performance, operational scale, and consistent execution across its portfolio of silver and gold operations in the United States and Canada. The S&P MidCap 400 is designed to measure the performance of a subset of U.S. equities with market caps between $8.0 billion and $22.7 billion, and Hecla's addition underscores the Company's increasing recognition within the investment community. Inclusion is not based solely on empirical measures, rather, it also includes subjective analysis by S&P's Index Committee.