US gold futures reached a historic high following the Trump administration's imposition of tariffs on one-kilo gold bars. Futures on the Comex rose to $3,484.60 an ounce, with an all-time high of $3,534.10. The tariffs, which were unexpected, have led to a significant increase in gold prices this year, as investors seek safe-haven assets amid geopolitical uncertainty. Switzerland faces challenges due to a 39% export tariff on gold, impacting its economy and trade relations with the US.