Micron, SanDisk and SK Hynix shares fell as the selloff in AI-linked chip stocks deepened, extending a run of losses across the memory and semiconductor sector.

The three companies, which supply memory and storage products tied to data-center and AI hardware demand, saw their stocks decline in the latest trading session, according to a GuruFocus report tracking the movement. The drop marks a continuation of the broader retreat from semiconductor names that had rallied on AI infrastructure spending.

What is driving the decline?

The selloff reflects investor concern that AI chip and memory stocks have outrun their fundamentals. Micron and SK Hynix both produce high-bandwidth memory and DRAM used in AI accelerators; SanDisk sells NAND-based storage. All three sit downstream of the same demand cycle: data-center buildouts by large cloud operators.

When sentiment toward that cycle turns, the memory makers fall together. That correlation played out again this week, with the three stocks declining in tandem as the wider AI chip trade came under pressure.

In short: the three companies share one demand source, and investors are repricing that source at the same time.

How broad is the selloff?

The decline is not limited to memory suppliers. The GuruFocus report frames the losses as part of a deepening selloff across AI chip stocks generally, a category that has driven much of the semiconductor sector's gains over the past two years.

Key points from the report:

• Micron shares fell in the session.
• SanDisk shares fell in the session.
• SK Hynix shares fell in the session.
• The report characterizes the drop as part of a deepening AI chip selloff rather than an isolated move.

The synchronized nature of the declines points to sector-level repricing rather than company-specific news. No single earnings report, guidance change or product announcement appears in the report as a trigger.

Why memory stocks move together

Micron, SanDisk and SK Hynix occupy adjacent positions in the memory market. Micron and SK Hynix compete in DRAM and high-bandwidth memory; SanDisk, recently separated from Western Digital's flash business, operates in NAND storage. Demand from AI data centers pulls on all three product lines at once.

That linkage cuts both ways. In rally phases, the three stocks climb on the same AI infrastructure spending narrative. In pullbacks, they fall on the same doubt: whether the spending will sustain the pricing and volumes the market has priced in.

This week's decline fits the second pattern.

What comes next

The report does not cite specific price targets, percentage declines or analyst commentary, so the depth of the selloff remains unquantified beyond the direction of the moves. Investors tracking the sector will watch upcoming memory pricing data and any guidance revisions from the three suppliers for confirmation of whether the pullback reflects fundamentals or sentiment.

For now, the direction is clear: the AI chip trade is shedding value, and the memory makers are falling with it.