It’s nice to have friends in high places, and they don’t get much higher than the White House.
Just ask Micron (NASDAQ:MU), the Idaho-based memory and storage solutions giant, which earned praise from President Donald Trump in back-to-back statements this week for supporting one of his favorite programs.
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“BIG NEWS! Micron, a truly GREAT American Company, and one of the ‘HOTTEST’ anywhere in the world, has announced a HISTORIC $250 MILLION investment in TRUMP ACCOUNTS,” Trump said in a July X post.
“This incredible gesture, made by Micron’s fantastic CEO, Sanjay Mehrotra, will make many children extremely happy some day in the not too distant future. This is the BIGGEST CORPORATE investment of its kind, and will help jumpstart the American Dream for these fabulous children as we celebrate America’s 250th Anniversary!”
Within 24 hours, Trump followed up with another pat-on-the-back post for Micron.
“How about this? Micron, a GREAT American company, announced that they are putting $250 million into the Trump Accounts for the future benefit of children, and their stock went up 9 points today. Thank you Micron!,” Trump noted in a July 2 X post (1).
The online bouquets didn’t seem to do much for Micron shares overall, which are down 14.36% in the past five days, even as the stock is up 209% year to date. Yet they do inflame a longstanding debate over the ethics of presidential promotion — and the damage it can cause to all investors.
The power of presidential approval
While presidents traditionally shy away from discussing specific publicly traded U.S. companies, Trump isn’t cut from the same cloth. In his two terms in office, Trump has spoken positively and negatively about such companies as Apple, Nvidia, Intel, Boeing and Amazon.
“Presidential endorsements absolutely can move markets, and the mechanism is well understood in behavioral finance,” Adrian Reid, a 20-year Wall Street veteran and founder at Enlightened Stock Trading, told Moneywise.
While Trump did not explicitly suggest people buy Micron, stock touting of any kind from the Oval Office tends to bring immediate concerns of “front running” or “pump and dump” schemes.
“That’s where the public figure, who usually already owns the stock, or whose contacts already own the stock, profits as the retail investor, who is typically the last one in, pushes the price up while the informed parties exit quietly, letting the FOMO-driven crowd absorb the risk,” Reid explained.
Trump’s financial records (2) from 2025 show he already owned between $1.67 million and $6.65 million in Micron shares. Then in March 2026, he purchased between $215,000 and $650,000 of Micron shares, according to MeidasTouch (3).
Federal employees have traditionally been forbidden from endorsing products or companies — the U.S. Office of Government Ethics issued a reminder right before Trump first took office — but presidents enjoy immunity to many such rules.
When a high-profile figure endorses a specific stock, investors often focus on prominent, emotionally charged information and may even shortcut their usual thinking entirely.
“It’s a signal when such a prominent figure’s message is loud and emotionally striking,” Reid noted. “This means it dominates decision-making far beyond what the underlying fundamentals would justify. Retail investors pile in on hope of price appreciation rather than objective analysis.”
Yet the impact can extend beyond the portfolios of individual investors who jump too soon.
“Market efficiency breaks down when sentiment completely overwhelms fundamentals, and speculative bubbles built on commentary rather than earnings and cash flow tend to collapse fast,” he said.
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The rightful role of regulation
Trading experts believe clearer ethical guidelines would benefit everyone involved when presidents and other high-level public officials cite specific stocks.
“That’s not because they presume wrongdoing, but because they help preserve confidence in the fairness of financial markets,” Alexander Briggs, chief trading strategist at Supertrader, an online trading service, told Moneywise.
“Investors should feel confident that stock prices are being driven primarily by business performance rather than uncertainty over how future public statements might influence market sentiment.”
Reid agrees, saying “endorsements actively undermine the discipline investors need to protect themselves and the fairness of the financial markets.”
Even if you’re not overly concerned about preserving the system, market makers point out that making portfolio decisions based on presidential declarations can simply be a fool’s errand.
“Buying a stock because a celebrity endorses it is about as sensible as picking your retirement plan based on who won Dancing with the Stars,” Paul Walker, founder at San Francisco-based Fil Financial Corporation, told Moneywise.
“Whether the endorsement comes from Kim Kardashian, the President of the United States, or your favorite social media influencer, it tells you nothing about a company’s earnings, debt or long-term prospects… Investors should remember that political endorsements are campaign speeches, not investment research.”
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X (1), (3); Office of Government Ethics (2)
This article originally appeared on Moneywise.com under the title: Trump drops love-bomb on Micron while holding the stock — up 209% this year. Experts say it ‘undermines’ the system
This article provides information only and should not be construed as advice. It is provided without warranty of any kind.
