Samsung Electronics and SK hynix were the most heavily bought stocks by Mirae Asset Securities’ top-performing clients as of 11 a.m. on the 14th, highlighting renewed appetite for Korean chipmakers after a rally in U.S. semiconductor shares overnight. Mirae Asset defines these "top stock traders" as the top 1% of clients by investment returns over the past month. Samsung Electronics ranked first and SK hynix second, followed by SK Square and Genic. Samsung Electronics traded at 268,750 won, up 0.28%, after rising as high as 278,000 won, while SK hynix gained 2.89% to 1,639,000 won and SK Square rose 3.31% to 1,154,000 won. Analysts cited rising high-bandwidth memory, or HBM (high-speed memory used for AI), prices, stronger DRAM pricing, expanding foundry orders and broader AI infrastructure investment as key positives for Samsung and SK hynix. The move also tracked stronger U.S. chip shares after SanDisk outlined long-term growth, margin and shareholder-return targets at its Investor Day, helping lift SanDisk 13.8%, Micron 4.2% and Lam Research 3.3%. The most heavily net-sold stocks that day were SK Telecom, SK, Samsung Life Insurance and Samyang Foods. Mirae Asset said the trading data is real-time informational guidance published on its mobile trading system and is unrelated to the brokerage’s investment views, while warning that theme stocks can be subject to abnormal price swings.