When Trump Posts, Stocks Take a Ride

Trump's posts on Truth Social can shake up the stock market. Some stocks go up, others go down. It all depends on what he says. Tesla, Boeing, and Pfizer are just a few examples. Tesla got a big boost when Trump talked about it. In March, Trump showed off Tesla at the White House. This made Tesla's stock go up. It jumped from $259. 16 to $309. 30 by August 5. That's a big deal. Elon Musk, Tesla's CEO, saw his fortune grow by $20 billion in one day. But Trump's words can also hurt stocks. Boeing felt this in 2016. Trump tweeted about the cost of Air Force One. This made Boeing's stock drop by 2%. That's about $1 billion in value gone. By August 5, Boeing's stock was at $225. 20. It's still sensitive to Trump's words. Pfizer has had ups and downs because of Trump. In 2018, Trump criticized drug prices. This made Pfizer's stock drop by 1. 5%. But in 2020, Trump praised COVID vaccines. This made Pfizer's stock go up by 5%. As of August 5, Pfizer's stock was at $24. 76. It's still affected by Trump's tariff talk.American Eagle got a boost too. On August 5, Trump posted about their ad campaign. This made the stock go up by 20%. It jumped from $10. 80 to $12. 23. That's a $150 million increase in market cap. Trump's posts can move the market. In April, he told people to buy his own company's stock. This made the stock go up by 22%. It added $415 million to his trust. But his tariff announcements have also hurt the market. They erased $5. 4 trillion from the S&P 500 in April 2025. Some people think Trump might be using insider information. Lawmakers have asked for an investigation. They want to know if Trump or his associates manipulated the market. Even Trump's allies, like Rep. Marjorie Taylor Greene, have been buying stocks around the same time as Trump's posts.