No sitting U.S. president had publicly endorsed a stock by its ticker symbol before Friday, April 10. Then President Donald Trump did it.
The president posted on Truth Social, praising Palantir Technologies by name and ticker. “Palantir Technologies (PLTR) has proven to have great war fighting capabilities and equipment. Just ask our enemies!!! President DJT,” he wrote. Within minutes, the stock ticked up roughly 3% from around $123, according to AOL.
It did not last. By early afternoon, Palantir was down 3.7% and sliding again, The Hill reported. Shares closed the day at $128.
Why the timing of President Trump’s Palantir post mattered
The endorsement landed during a brutal stretch for the stock. Palantir had fallen 14% to 16% over the prior five trading days and was down as much as 6% on Friday alone before Trump’s post hit, according to AOL.
The stock is down approximately 24% since the start of 2026, The Hill noted.
The pressure had been building all week. Palantir had been caught up in broader software sector fears about AI disruption, and short seller Michael Burry had intensified his public criticism of the company, arguing Anthropic was eating into its enterprise market.
What the president’s post actually changed
The post gave Palantir a short-lived boost, but not a reversal. The temporary 3% jump showed that political attention can move a stock in real time.
The fact that it could not hold the gain showed that sentiment alone does not change the underlying debate.
More Palantir
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That debate remains fierce. Palantir trades at approximately 109 times forward earnings against a sector median of around 21 times. Insiders have sold $432.9 million worth of shares in the past three months with zero purchases, according to AOL.
The stock hit a 52-week high of $207.52 in November 2025 and has since fallen more than 38%, Stocktwits reported.
Burry doubles down, despite Palantir’s presidential boost
Burry posted on Substack on April 10 that he is sticking with his short position.
He now holds June 2027 $50 puts and December 2026 $100 puts, and said flatly that Palantir “remains wildly overvalued,” according to CNBC.
Burry said he has been short since fall 2025 and has rolled the position several times. “I am not selling these today,” he wrote, according to Stocktwits.
That sets up a striking contrast. The president of the United States is publicly backing the stock, yet one of the market’s most famous short sellers is publicly betting against it.
Coffrini /Getty Images
The bull case still has its own defenders
Wedbush analyst Dan Ives maintained an outperform rating and a $230 price target, calling Burry’s thesis a “fictional narrative.” Ives pointed to Palantir’s 70% year-over-year revenue growth in Q4 2025 as evidence that the business remains strong, according to AOL.
Palantir CEO Alex Karp has previously called Burry’s short positions “super weird” and “bats**t crazy.” Palantir has not publicly commented on Trump’s Truth Social post.
Key figures in the Palantir story:
- Stock price at time of Trump post: Approximately $123
- Immediate reaction:Up 3% within minutes
- Closing price April 10:$128, down 3.7% on the day
- Weekly decline before Trump’s post:14% to 16%
- Year-to-date decline:Approximately 24%
- 52-week high:$207.52 in November 2025
- Forward P/E:Approximately 109x versus sector median of 21x
- Federal contracts secured last year:More than $900 million
What this means for investors
Palantir has deep ties to the U.S. government. It secured more than $900 million in federal contracts last year, including large-scale deals with the U.S. military under Project Maven and contracts with ICE and the Department of Homeland Security, The Hill reported.
Political support at the presidential level can reinforce the narrative around those contracts. But it does not change revenue growth rates, margin trajectories, or valuation multiples. For investors, the president’s post is a data point about political sentiment, not a reason to change a fundamental view on the stock.
The week showed why Palantir is one of the most volatile names in the market. It is a defense story, an AI story, and now a political story simultaneously.
Each of those threads can pull the stock in a different direction on any given day, often at the same time.
Related: Something just changed with Palantir stock, and investors noticed
