Foreign and institutional investors sold a net 2.84 trillion won and 1.95 trillion won of shares respectively. Retail investors bought a net 4.65 trillion won - stepping in front of the same train, four days after the government had promised to protect them from it. Retail investors poured about 78 trillion won ($54.2 billion) into Kospi shares across May and June. Samsung's preliminary operating profit for the period rose nineteenfold to about 89.4 trillion won. The KODEX SK Hynix leveraged product is down more than 80 percent from its June peak.