Top Investors Rush to SK Hynix Amid 8% KOSPI Plunge

Top-performing investors at Mirae Asset Securities bought SK Hynix (000660) most heavily on the morning of the 4th amid a broad market selloff. Hyundai Engineering & Construction and Hyundai Motor followed.

According to Mirae Asset Securities, the "stock masters"—investors ranking in the top 1% by returns over the past month—accumulated SK Hynix shares most aggressively by 11 a.m.

As of 11 a.m., SK Hynix traded at 912,000 won, down 2.88% from the previous session, according to the Korea Exchange. The decline was relatively modest compared to rival Samsung Electronics, which fell more than 5%, and the KOSPI index, which plunged over 6%.

Hyundai Engineering & Construction, the second most-purchased stock, dropped 9.77% on the day, extending a two-day slide after falling 8.62% the previous session. The decline reflected concerns over surging oil prices, inflation fears, and potential setbacks to Middle East construction projects following U.S. military operations against Iran. Top investors appeared to focus on the company's prospects for Ukraine reconstruction projects, expectations of Middle East stabilization, and attractive valuations.

Hyundai Motor, ranked third, fell 7.9% after plunging 11.72% the previous day. Analysts noted that elite investors remain optimistic about the company's robotics business pivot, which drove share price gains earlier this year, while the two-day selloff enhanced valuation appeal.

Among the top 10 net purchases, S-Oil was the only stock trading higher, surging 13.66% as of 11 a.m. The refiner had jumped 28.45% the previous day, approaching the daily limit. The rally reflected expectations of improved earnings as international oil prices spiked amid Middle East tensions. Iran declared it would blockade the Strait of Hormuz, through which approximately 20% of global oil shipments pass, following U.S. attacks.

Top investors were net sellers of Poongsan (+3.06%), Hanmi Semiconductor (+0.18%), Samsung Electronics preferred shares (-5.88%), Samsung Electronics (-5.64%), and Samchundang Pharmaceutical (-6.76%).

On the previous trading day, top net purchases were SK Telecom, SK Hynix, and S-Oil. Top net sales included Rainbow Robotics, Celltrion, and LIG Nex1.

Mirae Asset Securities compiles trading data from its top 1% of clients by monthly returns and publishes the information on its mobile trading system in real-time, daily, and five-day formats. The data is provided for informational purposes only and does not represent the firm's views or guarantee investment returns. Investors should exercise caution with theme stocks, which may experience extreme volatility.