Micron stock fell 16% after a DRAM price fixing lawsuit followed record earnings. Here is what the numbers show about risk and momentum.
Micron Technology (MU) makes memory chips, the DRAM and NAND flash that power everything from laptops to AI data centers, and the company is now caught between celebrating a record quarter and defending itself in federal court. A class action lawsuit filed June 25 accuses Micron, Samsung, and SK Hynix of secretly restricting memory chip supply since 2022 to push prices up by as much as 700%, a claim that landed the same day Micron shares hit an all time high.
A Record Quarter Meets a Courtroom Filing
The suit, Garciaguirre v. Samsung Electronics, was filed in the U.S. District Court for the Northern District of California and assigned to Judge Noel Wise. Seventeen plaintiffs, mostly individual consumers and small businesses, allege the three chipmakers coordinated cuts to older DDR3 and DDR4 production and redirected that freed up capacity toward higher margin AI memory known as high bandwidth memory, or HBM. Micron has denied wrongdoing, telling media it competes vigorously and fairly within the law and intends to fight the claims.
The timing stings because Micron had just reported its best quarter ever. Revenue for the period hit $41.46 billion, up sharply from $9.30 billion a year earlier, while GAAP net income reached $28.24 billion, or $24.67 per share, according to an SEC filing. Shares touched a peak of $1,255 the very day the lawsuit was filed.
Valuation, Momentum and Yield on Micron
Since that high, Micron stock has fallen 16.01% over five trading sessions, shedding $196.72 to close at $1,032.28. The steepest drop came on July 1, when shares slid 10.57%, or $122.01, from the prior close of $1,154.29. That kind of single day move often pushes short term momentum gauges like the relative strength index out of overbought territory and toward neutral, reflecting a market recalibrating after a parabolic run rather than necessarily pricing in a legal loss.
On valuation, the swelling quarterly earnings per share of $24.67 mean Micron's trailing price to earnings ratio has compressed even after the pullback, since the stock price has fallen while the earnings base has expanded dramatically. Micron also pays a dividend, though it remains modest relative to the stock's price given how far shares have run over the past year. The 52 week range now stretches from levels well below $1,032.28 up to the $1,255 peak, underscoring how much of the move happened in a short window tied to AI memory demand.
The bull case rests on Micron's dominant position in a market it controls alongside Samsung and SK Hynix, roughly 90% of global DRAM combined, plus surging demand for HBM used in AI accelerators. Bulls argue the lawsuit echoes a nearly identical 2018 case against the same three companies that was dismissed in 2020, suggesting this one could follow a similar path. The bear case points to history working against the defendants too: Samsung and SK Hynix both pleaded guilty to criminal DRAM price fixing in the early 2000s, paying a combined $485 million in fines, so regulators and plaintiffs' attorneys have reason to keep circling this industry.
Does Micron's Legal Exposure Change the AI Memory Story
Micron's market capitalization still reflects a company riding the AI memory boom, and nothing in the lawsuit alters near term demand for HBM. Whether this case advances past a motion to dismiss, as the 2018 suit did not, will shape how much of the recent selloff proves temporary versus a lasting discount on the stock.
