SK Group Chairman Chey Tae-won purchased 3,620 shares of SK Hynix, increasing his personal holding in the chipmaker from 0 to 3,620 shares. According to the newer report, this was his first direct purchase of SK Hynix stock. BIT market data on July 30 showed the contract price briefly climbed nearly 3% to $950 after the news. Based on SK Hynix’s closing price of $920, the stake was worth about $3.33 million.