Key Takeaways Micron shares declined 5.29% to $852.61 in premarket hours Tuesday, building on Monday’s 2.25% drop The KOSPI Index in South Korea crashed 11% overnight, pressuring semiconducto
Shares of Micron were changing hands at $852.61 in premarket activity Tuesday, representing a 5.29% decline that compounded Monday’s 2.25% retreat as selling intensified across AI-focused memory chip manufacturers.
Technology sector sentiment deteriorated sharply. Nasdaq futures pointed to a 1.1% lower open Tuesday morning, while South Korea’s KOSPI Index suffered an 11% overnight collapse — a delayed reaction to Monday’s U.S. market weakness that established a pessimistic tone for the trading day ahead.
Comparatively, Micron demonstrated resilience during Monday’s session versus industry counterparts. Sandisk plunged 11% and AMD surrendered over 5% during that trading period. However, Tuesday’s premarket movements revealed contagion spreading throughout the sector, with Micron, Sandisk, and Western Digital each declining approximately 7%.
China-related developments lie at the heart of the selloff. Market participants reacted to reports indicating a Chinese manufacturer has begun production of immersion deep ultraviolet lithography systems — technology currently dominated by Netherlands-based ASML. This news triggered anxiety throughout semiconductor markets.
Chinese memory chipmaker CXMT also captured attention following a spectacular 466% surge during its Shanghai Stock Exchange debut, momentarily achieving mainland China’s highest market capitalization at $484 billion. CXMT retreated 4% in its second trading session.
Deutsche Bank strategist Jim Reid informed the Financial Times that renewed concerns regarding AI infrastructure expenditures combined with threats from cost-competitive Chinese alternatives sparked the recent wave of semiconductor stock liquidation.
SK Hynix surrendered 7.47% in the previous session and has now erased nearly 47% from its June high. This significant drawdown has destabilized the entire AI memory investment thesis, prompting questions about whether high-bandwidth memory demand can support the sector’s valuation levels.
Samsung Electronics and Kioxia have similarly experienced downward pressure, alongside CXMT.
Micron continues trading substantially above its longer-term trend indicators — positioned 19.4% above its 100-day moving average and 68.8% above its 200-day SMA — suggesting the extended uptrend remains structurally sound. However, short-term momentum has reversed. The equity trades 11.5% beneath its 20-day SMA and 10.8% under its 50-day SMA.
The Relative Strength Index registers at 45.31, inhabiting neutral territory, indicating the stock hasn’t reached oversold conditions though buying interest has noticeably diminished.
Market participants should monitor the $804 level as critical support, where purchasing activity previously emerged.
Notwithstanding recent volatility, Wall Street analysts haven’t abandoned their optimistic stance on Micron. The stock maintains a consensus Buy recommendation with an average price objective of $1,548.86 — substantially above present trading levels.
Recent analyst activity reinforces this outlook. KeyBanc elevated its price target to $1,750 on July 14, while Cantor Fitzgerald established an even more aggressive $2,000 target on June 29.
Micron represents an 8.03% allocation within the iShares Semiconductor ETF and commands a 9.78% position in the Invesco PHLX Semiconductor ETF, indicating that exchange-traded fund redemptions can magnify downward price movement during periods of sector weakness such as the current environment.
Micron stock is still up more than 200% in 2026 despite the recent slide.
The post Micron Technology (MU) Stock Tumbles Over 5% in Premarket Trading Amid China Semiconductor Concerns appeared first on Blockonomi.
