SK Hynix wrapped up regular market trading today (July 30) with a sharp decline of over 5%.

In the main bourse today, SK Hynix closed at 1.322 million won, down 5.64% from the previous session.

Starting the session down 2.86% at 1.361 million won, SK Hynix briefly plummeted as much as 8.14% to 1.287 million won right after the market opened.

Although it briefly rebounded during the morning session to surge 4.14% to 1.459 million won, selling pressure resumed later, resulting in a steep plunge for the third consecutive trading day.

Considering that its closing price stood at 1.816 million won on July 27, the stock has tumbled 27.21% over the past three trading days.

Samsung Electronics finished the session down 0.72% at 207,000 won.

Opening up 2.64% at 214,000 won, Samsung Electronics temporarily surged as much as 8.39% to 226,000 won, but later relinquished its gains.

Samsung Electronics has recorded a decline of 18.50% over the past three trading days.

The previous day, Samsung Electronics and SK Hynix plunged 5.23% and 9.61%, respectively, in the wake of SK Hynix reporting second-quarter earnings that fell short of market expectations and its subsequent conference call.

Following this, Samsung Electronics announced during its earnings conference call that infrastructure investments by hyperscalers (large-scale data center operators) will continue to drive even stronger memory demand in the second half of this year, adding that next year "the supply-demand gap will widen further compared to this year."

Investor sentiment was given a positive boost as Samsung reaffirmed its commitment to faithfully executing its shareholder return policy, which allocates 50% of its free cash flow (FCF) to dividends and treasury stock cancellations.

While bargain hunting flowed in following the consecutive days of plunging prices, appearing to reverse the mood, it seemed to lack the momentum needed to drive a definitive rebound.

In the securities market today, foreign investors and institutional investors net purchased 1.3329 trillion won and 66.5 billion won, respectively, while individual investors stood alone as net sellers, offloading 1.4199 trillion won.

In the KOSPI electric and electronic sector, which includes Samsung Electronics and SK Hynix, foreign investors maintained a buying advantage with 880.3 billion won.

Individual and institutional investors maintained selling advantages of 511.1 billion won and 386 billion won, respectively.

SK Hynix and Samsung Electronics ranked first and third, respectively, among the top stocks purchased net by foreign investors today.

Foreigners net purchased 587.6 billion won of SK Hynix and 146.8 billion won of Samsung Electronics.

The second most net-purchased stock by foreigners was SK Square (164 billion won).