Micron Drops 6%, Intel Falls 5% Leading Semiconductor Selloff as DRAM Price-Fixing Lawsuit Weighs on Sector
N.R. Finch
Semiconductors bucked a broad market rally Monday, with Micron dropping 6% after a class-action lawsuit accused the three largest memory makers of colluding to inflate DRAM prices — money is picking sides.
What exactly sold off in semiconductors?
The Philadelphia Semiconductor Index fell 0.4%, while the Dow, S&P 500, and Nasdaq rose 0.5%, 0.6%, and 1% respectively — a clear divergence.
The damage was concentrated: Micron -6%, Intel -5%, Marvell -4%, AMD -3%.
This means → the market was not de-risking broadly; it was targeting chip stocks specifically, driven by a concrete catalyst.
What does the lawsuit allege — and why did the market react so sharply?
Last Thursday, plaintiff Marc Garciaguirre filed a class-action suit in the U.S. District Court for the Northern District of California against Micron, Samsung, and SK Hynix.
The core allegation: the three memory giants coordinated supply cuts in DRAM, exploiting the AI demand surge to inflate prices.
In plain terms = the plaintiff claims these three companies control the vast majority of global DRAM capacity and collectively "shipped less, charged more" — at consumers' expense.
This reflects a broader pattern: the AI boom is not only lifting chip demand but also pushing pricing-power disputes back into the courtroom.
Why did storage stocks diverge internally?
SanDisk fell 8% — even more than defendant Micron — signaling the market is treating "memory-pricing risk" as a sector-wide issue.
Yet Western Digital rose 2.7% and Seagate edged up 0.7% — both lean toward hard-drive businesses with less direct DRAM exposure.
This means → even within the storage sector, capital is sorting pure-DRAM exposure from non-DRAM exposure, not selling indiscriminately.
Where did the money go instead?
AI software stocks rallied broadly: Palantir gained 4.7% after announcing a partnership with Surf Air Mobility on OperatorOS solutions and a deal with Nvidia to deploy AI models — including Nemotron open-source models — in sovereign environments for U.S. government agencies and critical infrastructure.
Nvidia rose 0.7%; the iShares Expanded Tech-Software ETF (IGV) climbed 2.5%.
In plain terms = within the same AI theme, money rotated from "chip makers" to "software sellers" — hardware is weighed down by lawsuits and valuation pressure, while software contract wins are getting rewarded.
What to watch next?
AI cloud-compute names were themselves split: Nebius +2%, DigitalOcean +2.7%; CoreWeave and Iren each -4%, Applied Digital -6%.
This means → even inside the AI trade, the market is pricing companies individually, not buying the basket.
Whether the DRAM price-fixing lawsuit gains traction in court is the key verification point for Micron and memory stocks going forward — if it reaches substantive proceedings, the pricing-power narrative will keep pressing on valuations.
Content is for reference only, not financial advice.