Shares of Micron Technology have fallen sharply over the past several trading sessions, part of a broader selloff sweeping through global semiconductor stocks as investors grow increasingly uneasy about competition from a new Chinese memory chip rival and question how long the artificial intelligence spending boom can continue at its current pace.

Micron stock dropped nearly 9% during Tuesday's session, extending a decline that pushed the memory chipmaker down more than 10% the previous trading day. The stock's slide came even as the broader S&P 500 traded modestly higher, underscoring how narrowly the selling pressure has been concentrated in chip and memory-related names rather than the market as a whole.

Analysts point to two primary forces behind the decline. The first is the public market debut of ChangXin Memory Technologies, a Chinese memory chip manufacturer that completed its initial public offering in Shanghai this week at an estimated valuation of roughly $85 billion. The listing has renewed longstanding investor concerns that Chinese manufacturers, backed by substantial state support and rapidly improving technology, could begin undercutting established players like Micron, Samsung and SK Hynix on price, potentially compressing profit margins across the global memory chip industry just as demand for AI-related chips has been driving unprecedented profitability.

Adding to those competitive........

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