Nvidia’s $4 trillion mark, copper crackdown, Trump’s tariff slaps: Live Updates

President Trump will wield 50% copper tariffs on August 1 as he promises more to come with countries such as Brazil in the crosshairs. Nvidia scores the first $4 trillion market cap milestone, lifting the Nasdaq to a record. Cereal giant Kellogg in play? as McDonald’s brings back fan favorite. FOX Business is providing real-time updates on the markets, commodities and all the most active stocks on the move.