U.S. Copper Index Fund (CPER) is up 28% over the past year, outpacing the S&P 500’s 15.5% gain, carries a 1.06% expense ratio, and dropped 19% when refined copper was exempted from tariffs. Copper ...

If copper isn’t Arizona’s king, it still looks to be a royal growth industry. Major new mines are in various stages of development or environmental haggling, all intended to exploit the metal’s ...