On Friday, Micron Technology (MU.US) saw its stock price climb nearly 4% to $452.89, once again setting a new intraday record high. It is reported that the world's three largest memory chip giants are taking rare measures to curb customer hoarding behavior. Faced with persistent supply tightness, Samsung Electronics, SK Hynix, and Micron have begun intensifying their scrutiny of customer orders, demanding disclosure of end-user and order quantity information to ensure demand authenticity and prevent excessive stockpiling from further disrupting the market. Currently, memory chip giants' inventories have dropped to historically low levels; SK Hynix's DRAM inventory saw a significant year-on-year decline in the fourth quarter of last year, while Samsung's DRAM inventory has been reduced to approximately six weeks of supply, about half of the normal 10-12 week level. The three companies have tightened order requirements, implementing stricter monitoring of customer purchasing behavior. This move highlights the severity of the current supply-demand imbalance in the memory chip market.