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Wednesday's 13% gain in Hecla Mining (NYSE: HL) to $20.29 and Coeur Mining (NYSE: CDE) to $20.83 has a specific author: a Treasury Department plan to increase buybacks of long-dated government debt by at least double, covering securities from the 10-year to 30-year sector.
That policy move compressed the 30-year yield by 8 basis points to 5.2%, per Mining.com, pulling it off its highest level since 2007. Both stocks were flat to negative for the year heading into the session.
The operating leverage mechanic explains the magnitude.
Miners like Hecla Mining and Coeur Mining carry a cost base that does not move with the metal price, so a single-digit shift in spot gold or silver can produce a double-digit swing in the equity.
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