The ETF features some large and well-diversified market leaders, like Australia's BHP Group (NYSE: BHP) and Rio Tinto (NYSE: RIO), Brazil's Vale (NYSE: VALE), and Freeport-McMoRan (NYSE: FCX) here in the U.S. If inflation indeed starts to hit chip stocks, a metals and mining exchange-traded fund (ETF) might be a surprising way to invest in the continued advance of the tech world. Not only has tech hardware decreased in absolute price (personal computers could cost many thousands of dollars 40 years ago), but they've also simultaneously increased exponentially in what they're capable of accomplishing.