The US stock market opened trading on a positive note, and after some declines, the Dow Jones index finally ended up 0.8 percent, the tech-heavy Nasdaq index rose 0.6 percent, and the broad S&P index climbed 0.8 percent.
Apple, among others, was swept along in the upward trend, with the computer manufacturer Dell up 4.0 percent and industry colleague HP up 2.6 percent.
Behind the turnaround for tech companies lies US President Donald Trump's statement a few days ago that smart phones, computers, and other electronics would be exempt from tariffs imposed on the rest of the world.
New Messages
However, new information emerged on Sunday when Trade Minister Howard Lutnick said in an interview with ABC News that electronics imported to the US would be subject to separate tariffs within "a month or two".
This was followed by a new statement from Trump, who announced on his platform Truth Social that it was not about an exemption, but that the products would be covered by existing 20 percent tariffs and would be moved to a new tariff category.
Even car giants such as General Motors, Ford, and Stellantis rose on Monday after Trump said he was exploring possible temporary exemptions from his tariffs on imported vehicles and vehicle parts.
More Time
This is to give car companies more time to set up production in the US. The car giants rose 3.5 percent, 4.1 percent, and 1.9 percent, respectively.
AI software company Palantir also rose, up 4.6 percent, after signing a new agreement with NATO.
Investment bank Goldman Sachs also climbed, up 1.9 percent, after presenting a quarterly report that exceeded expectations.