The stocks most heavily bought on a net basis by high-return investors trading through Mirae Asset Securities on the morning of the 5th were Samsung Electronics (005930.KS), SK hynix (000660.KS) and Samsung Electro-Mechanics (009150.KS), in that order.
According to Mirae Asset Securities that day, the stock most heavily bought by the 11 a.m. mark by "top stock traders" — those in the top 1% of investment returns over the past month — was Samsung Electronics. As of 11 a.m., Samsung Electronics was trading at 249,250 won, up 3.85% from the previous session.
SK hynix ranked second in net buying. At the same time, SK hynix was trading at 1.692 million won, surging 7.29%.
The buying is interpreted as inflows into Korea's leading chip stocks after semiconductor shares rallied overnight on the U.S. market. Micron jumped 7.6%, boosted by a report from a Taiwanese information technology (IT) outlet suggesting its 2027 memory supply could sell out early. The Nasdaq index also rose 2.6%.
Investor sentiment was also stirred by Wall Street financial firms successively initiating coverage on SK hynix's American Depositary Receipts (ADRs). According to Reuters, at least six financial firms, including Bank of America (BofA), issued "buy" or "overweight" investment ratings on SK hynix's ADRs.
BofA analyzed that SK hynix is undervalued, citing solid orders from U.S. technology companies, its leading position in the advanced memory chip market, and expanding investment in artificial intelligence (AI) infrastructure. It also projected that SK hynix could post "super cycle"-level earnings as AI investment expansion continues. Rosenblatt Securities set a target price of $320 for SK hynix's ADRs, the highest among Wall Street financial firms.
Ranking third in net buying was Samsung Electro-Mechanics. As of 11 a.m., Samsung Electro-Mechanics was trading at 1.333 million won, surging 12.49% from the previous session. It has continued its upward trend since hitting the daily upper limit on the 31st of last month.
Samsung Electro-Mechanics' shares have risen steeply this year on expectations of expanded supply of high-performance multilayer ceramic capacitors (MLCCs) and semiconductor packaging substrates driven by the spread of AI infrastructure. The stock climbed to 2.227 million won on June 19, but subsequently fell to 878,000 won on the 30th of last month amid growing doubts over the sustainability of AI investment.
"The recent price correction is merely the result of temporary supply-demand factors, not a deterioration of the industry environment," said Park Jun-seo, a researcher at Mirae Asset Securities. "The structural profits of both the components and substrate divisions are actually improving."
By contrast, Hyundai Motor (005380.KS) topped the net selling list. As of 11 a.m., Hyundai Motor was trading at 406,000 won, up 3.44% from the previous session. With the share price rising, some high-return investors are believed to have moved to lock in profits.
On the previous session, the 4th, the top net-buying stocks were SK hynix, GS P&L and Samsung Electronics (preferred), in that order. The top net-selling stocks were Samsung Electro-Mechanics, Samsung Electronics and SK, in that order.
Mirae Asset Securities compiles the trading of investors in the top 1% of returns over the past month among its customers and discloses it on its mobile trading system (MTS) on a real-time, previous-day and recent five-day basis. These statistics are simple information unrelated to the views of Mirae Asset Securities and do not guarantee investment or returns. As theme-related stocks may experience sharp price fluctuations, investors should exercise caution.
