Apple shares rose 15% on April 9, their biggest one-day gain since 1998, after US President Donald Trump announced a 90-day delay in imposing tariffs on more than 75 countries where Apple has manufacturing facilities, including Vietnam, India and Thailand, Kommersant reported.

At the same time, Trump raised tariffs on imports from China to 125%, the country where most of Apple's iPhones and other devices are made.

Apple's market capitalization rose by $400 billion to nearly $3 trillion, surpassing Microsoft as the world's most valuable company. However, the gain did not offset the decline that began after the announcement of tariff increases on April 3. Apple's shares are currently down about 17% compared to last month.