On July 16, Roundhill Memory ETF declined 5.57% in regular trading, trading at $53.33/share, with turnover of $1.149 billion. The sell-off was driven by a convergence of negative catalysts hammering the global memory chip sector.

On the news front, Guangfa Hong Kong downgraded Q3 DRAM price increase expectations amid strong customer resistance to 30% price hikes, while Warren Buffett's critique of AI speculation triggered a broad sentiment reversal. Key holdings Micron Technology and Western Digital fell over 8%, with SanDisk plunging more than 12%. SK Hynix ADR dropped nearly 10%. Korean markets saw the KOSPI index decline nearly 7%, triggering a circuit breaker, as SK Hynix fell over 11% and Samsung Electronics dropped over 8%.

Adding to the pressure, Korean prosecutors raided offices of Montage Technology, Renesas Electronics, and Rambus in Korea over alleged semiconductor component price collusion. Separately, the US International Trade Commission launched an investigation into certain DRAM devices based on a Netlist patent infringement complaint targeting Samsung and downstream users including NVIDIA and Broadcom.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)