CNBC: This copper bet has became a real-time gauge of Trump’s next trade war salvo

CNBC writes: One specialist arbitrage trade on a metal commodity is evolving into a real-time gauge of U.S. tariff risk. Copper — seen as a broader economic barometer, with the industrial metal a key component in construction, electronics and transportation — has been on a tear for more than a year, with futures reaching a record high of almost $6.90 per pound last week. The spread between U.S. CO Read full article →