SK Hynix Inc’s rally on August 14 lifted U.S.-listed leveraged ETFs tied to the stock, with five 2x long products gaining about 18% in one session as bullish sentiment spread across memory and storage shares after SanDisk’s upbeat long-term outlook. SanDisk rose nearly 9% intraday and was reported up 35% over the previous five trading sessions, while Seagate Technology, Western Digital, Micron Technology and SK Hynix also advanced. A separate U.S. market snapshot showed strength extending to optical-communications names including Applied Optoelectronics, Lumentum, Corning and Coherent, while weakness in other semiconductor subsectors and a weaker-than-expected U.S. retail sales report left major indexes mixed. In South Korea, Mirae Asset Securities said its top-performing clients were net buyers of Samsung Electronics and SK hynix, reinforcing demand for AI- and memory-linked chip stocks. The leveraged ETFs are daily-reset trading instruments and can diverge from the stock’s longer-term performance over time.