Micron Faces a Twin Assault: A Short Seller’s Warning and a Cartel Lawsuit Test the AI Rally

The euphoria over memory chips has drawn two distinctly unwelcome guests to the party. Michael Burry, the investor famous for betting against the housing bubble, has publicly shorted Micron. At the same time, a class-action lawsuit filed in California alleges that Micron, Samsung, and SK Hynix colluded to jack up prices by artificially constraining supply. The stock ended Friday at €912.00, up nearly 7% on the day, but that single-session pop masks a deeper tug-of-war between booming demand and mounting legal and fundamental risks.

Burry’s thesis is blunt. He points to Micron’s median return on invested capital of just 4% and a return on equity of 7%, calling them “frankly terrible.” His core argument: in every third quarter, the company destroys capital, and free cash flow has been negative in almost half of all periods. The bulls fire back with the most recent quarterly numbers. For the three months through May, Micron posted revenue of $41.5 billion, a 345.7% surge year over year. Gross margin ballooned to 84.6% from 37.7% a year earlier. The company is guiding for roughly $50 billion in revenue next quarter, and the analyst consensus on Wall Street currently stands at a price target of €1,298.62 — implying about 42% upside.

The cartel lawsuit adds a legal dimension to that financial picture. The plaintiffs accuse the three memory giants of deliberately throttling production of older memory modules to force customers into pricier HBM chips. Prices have jumped 700% over four years. The complaint zeroes in on Micron’s decision to shutter its Crucial end-customer brand in December 2025 — a move the claimants call a calculated supply manipulation at the most profitable moment in the brand’s history. Micron has denied the allegations and vowed to fight.

History, however, cuts both ways in this debate. Between 1999 and 2002, Samsung and SK Hynix paid hundreds of millions of dollars in fines for DRAM price-fixing, and several executives went to prison. Micron cooperated with authorities and escaped penalties. A more recent class action with strikingly similar allegations was thrown out in 2020 and finally dismissed on appeal two years later. The court ruled that production cuts, even when synchronous, can constitute legitimate market dynamics as long as no explicit collusion is proven.

Should investors sell immediately? Or is it worth buying Micron?

That legal precedent resonates with the actual market behavior during the last downturn. In late 2022, the memory industry suffered a brutal correction, with Micron and SK Hynix briefly operating at a loss. Yet there was no sign of coordinated cuts. Samsung continued producing at high levels for months after its rivals had pulled back — a divergence that seriously undermines the theory of a tight cartel.

The underlying supply-demand math argues for real, structural tightness. SK Hynix recently reported an operating margin above 70%. Jefferies analysts expect chip contracts to rise by as much as 50% in the third quarter, and many project no meaningful relief until at least 2028. This fundamental scarcity is the reason the stock still commands a premium: it trades 19.64% above its 50-day moving average of €762.26 and a stunning 133% above the 200-day line at €391.42.

Yet the price action tells a conflicted story. From its June high of €1,103.80, the stock has pulled back 17%. Over the past seven sessions it has lost 8.40%, though the annualized swing in recent weeks has been a vertiginous 116%. Over a 12-month horizon the gain still sits at 778%, and year-to-date the stock is up 239%. A separate analyst consensus from the same period puts the target at $1,486, highlighting the split between euro- and dollar-based views.

The coming weeks will determine whether the bears or the bulls win the narrative. Micron’s own revenue guidance of $50 billion will be a critical test. So will ongoing commentary from hyperscalers about their capital spending plans. The cartel case will grind through the courts for months, and Burry’s short bet adds a perpetual headline risk. For now, Micron sits at the intersection of a genuine AI-driven supercycle and the deepest skepticism the chip industry has faced since the dot-com era.