An acute copper supply squeeze is coming to an abrupt end as President Donald Trump’s plan to soon slap a 50% tariff on the metal narrows the window to profit from surging US prices. Key spreads on the London Metal Exchange — which had soared in late June as a rush to ship the metal to the US drained stockpiles — have now collapsed. The latest indication from the White House that a levy is imminent means time is running out to seek to front-run the policy and profit from arbitrage. Shipments from European and Asian sheds take weeks to reach American shores, and cargoes will soon risk arriving after tariffs are in ... (full story)