As the stock market tumbled on Friday amid renewed trade tensions between the United States and China, rare earth equities leveraged the opportunity to post gains.Notably, the benchmark S&P 500 index ended the day down 2.7%, wiping out about $1.5 trillion in market capitalization.S&P 500 one-day chart. Source: Google Finance The sell-off followed President Donald Trump’s announcement of a 100% tariff on Chinese imports, effective November 1, in response to China’s expanded export restrictions on rare earth ...