Micron (NASDAQ: MU) stock is showing one of its strongest warning signs in more than three decades, after a historic rally driven by demand for artificial intelligence pushed shares into deeply overbought territory.
The warning signal comes after Micron Technology shares closed the latest trading session at $1,034, up more than 6% on the day.
Micron stock recently surged above $1,000, capping a remarkable rally of roughly 900% to 1,000% over the past year and pushing the company’s market capitalization beyond $1 trillion as investors piled into AI-related stocks.
MU stock elevated RSI
However, technical indicators suggest the rally may be overstretched. Micron’s monthly Relative Strength Index (RSI) has climbed above 90, marking its highest overbought reading in more than 30 years.
While an elevated RSI does not guarantee a pullback, such extreme levels have historically preceded periods of heightened volatility and consolidation, raising concerns that buying momentum may be nearing exhaustion.
Notably, Micron’s stock rally has been fueled by surging demand for high-bandwidth memory (HBM) used in AI infrastructure.
The company’s HBM3E and next-generation HBM4 products have benefited from strong orders from hyperscale cloud providers and AI chipmakers, helping establish Micron as a key beneficiary of the AI boom.
Micron financials
The strong demand has translated into record financial results. In fiscal Q2 2026, Micron reported revenue of approximately $23.9 billion and adjusted earnings per share of $12.20, supported by rapid growth in data center memory sales and favorable DRAM pricing.
Micron has also strengthened investor confidence through capacity expansion and product innovation.
The company continues to invest in manufacturing facilities across the U.S. and Asia while showcasing new AI-focused memory and storage products at COMPUTEX 2026, reinforcing its long-term growth strategy.
Despite its strong AI-driven growth, MU stock’s valuation remains a concern for some investors. The memory industry has historically been cyclical, and risks such as increased supply, slower AI spending, or weakening demand could trigger profit-taking after the stock’s massive rally.
Investors are now focused on Micron’s fiscal third-quarter earnings report on June 24. With expectations running high and the stock flashing its most overbought signal in more than 30 years, the results could determine whether Micron stock extends its gains or enters a period of correction.
