Trump Just Mentioned Micron Stock, But Its Down 5% This Week

President Donald Trump praised Micron on Truth Social Thursday afternoon. He called it one of the “hottest” companies in the world. Micron Technology (MU) stock fell anyway.

The post cheered a $10 billion research lab. Micron had announced that lab a full week earlier. Traders had already moved on.

Micron Stock Was Falling Before Trump Posted

The market did like the news when it was fresh, as MU stock jumped 3.97% on August 20, the day the plan went public.

Introducing Micron Research Labs — a U.S.-based long-horizon research institution in Boise, backed by a planned $10B investment over the next decade. The first dedicated memory research hub of its kind in the U.S.  Bringing together academia, government, startups and industry… pic.twitter.com/KFPlakFVBh

— Micron Technology (@MicronTech) August 20, 2026

Every gain from that day is now gone. Here is how the stock has traded since, according to StockAnalysis data.

How Micro Stock Has Traded Since August 20

Shares traded at $918.75 as of this writing, approximately 5% below its weekly open. It also leaves Micron about 27% under its record high of $1,255.

Micron (MU) Stock Performance. Source: Yahoo Finance

The company is still worth about $1.04 trillion. Few stocks fall this hard while sitting on gains that large.

What the Truth Social Post Left Out

Trump described the $10 billion as additional to a previous $250 billion pledge. Micron’s own statement says otherwise. The lab sits inside that total, not beside it.

GREAT NEWS! Micron, one of the “HOTTEST” Companies in the World, just announced a MASSIVE 10 BILLION DOLLAR Investment in new Research Labs right here in America. They are keeping us at the absolute forefront of A.I. and Advanced Computing! 🇺🇸 Combined with their previous… pic.twitter.com/x2qooSwzkC

— Commentary Donald J. Trump Truth Social Posts On X (@TrumpTruthOnX) August 27, 2026

That pledge has its own history with this White House. Micron first put the number at $200 billion in June 2025, in a joint announcement with the administration. A company filing split it into $150 billion for factories and $50 billion for research.

The same filing claimed 90,000 direct and indirect jobs. It also confirmed up to $6.4 billion in federal CHIPS Act support. Micron has since raised the headline figure to more than $250 billion.

The new lab itself is slow money, as construction starts in 2027 and the $10 billion is spread over a decade.

“America’s AI future will be built on American-made memory,” said Sanjay Mehrotra, Micron chairman, president and chief executive officer.

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Analysts Stay Bullish While Memory Stocks Sell Off

The real damage came on August 24, three days before the post. MU dropped 5.83% that session. Rival SanDisk fell 6.45% on the same day, so the selling hit the whole memory group.

📊 THE TAPE🔀 Sectors, best and worst of 11:Consumer Staples +1.76%  Information Tech -1.59%All eleven are on the scoreboard card in post 1. Eight of them closed green.Memory and storage was the whole trade. Seagate -6.51%, SanDisk -6.45%, Micron -5.83% and Western… pic.twitter.com/9oK0F80czS

— Dr. Red Candle (@RedCandleRx) August 24, 2026

Nvidia’s Q2 earnings landed on August 26. Revenue hit $96.2 billion, up 106% from a year ago. Yet the company guided next-quarter gross margin down to 74% from 75%, per its results. Nvidia buys high-bandwidth memory from Micron, so rising memory prices cut both ways.

Meanwhile, Wall Street is not worried, as seen with a consensus of 31 analysts setting the 12-month target at $1,556.55, roughly 69% above Thursday’s price. Of that group, 30 back a buy and one says hold.

Micron Stock Forecast and Target. Source: TipRanks

Trump’s posts keep landing on the wrong days. He praised Micron on July 1 as well. The stock ended that month 15.5% lower. Timing data pointed to rival catalysts when SpaceX stock moved after a similar post.