Micron (MU) Stock Drops as Burry Bet Raises Pressure

TLDR

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Micron and SanDisk shares fell about 1.5% to 2% in early premarket trading, extending losses for a second day.
Micron stock came under pressure as investors reduced exposure ahead of its September 30 earnings report.
Michael Burry’s short position added caution around memory-chip valuations and the risk of a future cyclical slowdown.
Samsung’s HBM4 expansion is increasing competition in advanced memory used for AI systems and data centers.
Investors will focus on Micron’s memory pricing, HBM demand, margins, and fiscal 2027 outlook when earnings are released.

Micron (MU) stock fell in early premarket trading Thursday as investors reduced exposure before the company’s fiscal fourth-quarter report. SanDisk also moved lower, extending a second day of weakness across memory shares after strong recent gains.

Micron Technology, Inc., MU

The pullback comes despite firm demand for memory that powers artificial intelligence systems. Traders now face a key test on September 30, when Micron will update investors on pricing, demand, margins, and its fiscal 2027 outlook.

Micron Stock Slips Ahead of Earnings

Micron shares dropped about 1.5% to 2% in early trading, while SanDisk posted a similar decline. Both stocks have still recorded large year-to-date gains after strong demand lifted memory prices and earnings expectations.

Recent gains also reflected new products and rising AI demand. Micron recently introduced advanced memory products before earnings, adding another catalyst to an already strong year for the company.

Burry Short Adds Pressure

Michael Burry added pressure after disclosing short positions in Micron and other AI-linked stocks. He argued that memory valuations had moved faster than underlying business conditions and warned that the sector could face another cyclical downturn.

The view contrasts with Micron’s recent operating performance. The company reported record fiscal third-quarter revenue of $41.46 billion and guided for about $50 billion in fourth-quarter revenue, with gross margin near 86%.

Micron also faces a separate labor issue in Taiwan, where workers threatened industrial action over profit-sharing demands. The company still expects non-GAAP earnings of about $31 per share.

Memory Demand Meets Competition

Competition remains another factor. Samsung has started commercial HBM4 shipments and uses a 4nm logic base die for the product, strengthening its position in advanced memory for AI systems.

SanDisk remains tied to strong storage demand. Its recent quarterly report included sharp revenue growth and a $14 billion share repurchase authorization, keeping investor attention on NAND demand and pricing.

September 30 Report Takes Center Stage

Micron will report fiscal fourth-quarter results on September 30. Investors will watch revenue, margins, HBM demand, memory pricing, and management’s outlook for fiscal 2027 as they assess whether the current cycle can continue.

Micron stock remains sharply higher in 2026 despite this week’s decline. SanDisk has also posted a strong annual gain, leaving both stocks sensitive to earnings expectations and any change in global memory demand. That has raised sensitivity to any sign of slower pricing growth or customer spending next year.

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