As Big Tech kicks off its quarterly earnings season this week, the industry’s bellwether companies have been thrust into a cauldron of uncertainty and turmoil that they didn’t anticipate when Donald Trump re-entered the White House nearly 100 days ago.

Since President Trump’s Jan. 20 inauguration, Big Tech stocks have been on a see-sawing ride that has eviscerated trillions of dollars in shareholder wealth amid an onslaught of tariffs and other potentially detrimental actions.

It’s the polar opposite of what Apple CEO Tim Cook, Tesla CEO Elon Musk, Google CEO Sundar Pichai, Facebook founder Mark Zuckerberg and Amazon founder Jeff Bezos hoped for when they assembled behind Trump as he was sworn in.

That display of unity reflected a belief that Trump’s second stint in the White House would be a refreshing change from the heavy-handed regulation of President Joe Biden’s administration while unleashing........

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