Nvidia shares fall 9% on tariff fears
1. Nvidia shares fell nearly 9% after tariff announcement from Trump. 2. Company's market cap dropped to $2.79 trillion, down from $3 trillion. 3. Nvidia's revenue increased 78% year-on-year to $39.33 billion. 4. Tariffs on imports from Canada and Mexico create uncertainty for Nvidia's production. 5. CEO suggests strong demand and good quarter ahead despite current challenges.