Supermicro (SMCI) stock shed over 25% of its market value in premarket trading after a US indictment charged three employees tied to the server maker — including its co-founder — with diverting $2.5 billion worth of servers containing Nvidia (NVDA) chips to China, in violation of US export laws. While the White House initially barred the sale of Nvidia’s advanced chips to China, President Trump said in December he would allow the sale of H200 graphics processing units (GPUs) to China. On Wednesday, CEO Je ...