Key points
- A proposed federal class action was filed on June 25, 2026 in the US District Court for the Northern District of California, accusing Samsung, SK Hynix and Micron (MU) of conspiring to fix the supply and price of DRAM memory.
- The complaint alleges the three cut DRAM production, coordinated a pivot to AI-focused HBM and an exit from older DDR3 and DDR4 chips, and locked up conventional supply while memory prices surged.
- It ties the companies to the so-called "RAMpocalypse," the steep run-up in RAM prices, and claims they even rehired executives once jailed over the early-2000s DRAM cartel.
- These are allegations, not findings. The companies have not been found liable, and they have beaten similar DRAM suits before.
- The suit seeks class-action status and damages for buyers who overpaid for products containing DRAM. Micron (MU) is the only US-listed pure-play of the three.
The three companies that make almost all of the world's computer memory are being sued again, this time as RAM prices sit near record highs.
On June 25, 2026, a proposed federal antitrust class action was filed in the US District Court for the Northern District of California against Samsung Electronics, SK Hynix and Micron Technology (MU). The suit accuses the trio, which together control the vast majority of the global market for dynamic random access memory (DRAM), of conspiring to limit supply and inflate prices.
What the complaint alleges
It is important to be precise here: everything below is an allegation. None of it has been proven, the companies have not been found liable, and they have not yet responded in court.
According to the complaint, the memory makers "simultaneously cut production, coordinated a pivot to HBM and exit from DDR3 and DDR4, and otherwise decreased and locked up conventional DRAM supply" even as demand kept climbing, sending prices sharply higher. In plain terms, the plaintiffs claim the three deliberately throttled the supply of everyday memory chips, in part by shifting capacity toward the high-bandwidth memory (HBM) that AI data centers are scrambling for, and that this is what drove the price spike many shoppers have nicknamed the "RAMpocalypse." The filing also alleges the companies rehired and rewarded executives who served prison time for the DRAM price-fixing conspiracy of the early 2000s.
The suit seeks class-action status on behalf of businesses and consumers who allegedly overpaid for products containing DRAM, from PCs and phones to servers, and asks for damages.
Why this keeps happening, and the catch
This is not the first time these names have been in the antitrust crosshairs. The same companies pleaded guilty to a criminal price-fixing conspiracy that ran from 1998 to 2002, and they were hit with another class action over a 2016 to 2017 supply squeeze. That track record is part of why plaintiffs keep filing.
Here is the catch, though: these cases are hard to win. An earlier DRAM price-fixing case against the same defendants was dismissed, and that dismissal was upheld on appeal. Coordinated supply discipline in a market with only three big players can look a lot like ordinary, legal business behavior, and proving an actual agreement to fix prices is a high bar. So a filing is a long way from a payout.
What it means for the stocks
For investors, the practical read is narrow. Of the three, only Micron (MU) is a US-listed pure-play; Samsung and SK Hynix trade primarily in Seoul. A new lawsuit is a legal overhang and a headline risk, but historically these DRAM suits have done little to the share prices, especially right now, with memory stocks riding one of the strongest up-cycles in years on AI and HBM demand. The bigger story for the chips themselves remains that demand boom, which we broke down in our advanced packaging deep dive and the full AI stock map.
The bottom line: a serious-sounding lawsuit with real history behind it, but it is a set of unproven allegations at the starting line of a long legal fight, not a verdict. We will update this if the companies respond or the case moves forward.
Nothing here is investment advice. The claims described are allegations in a civil complaint and have not been proven in court. The companies have not been found liable. Do your own research.