Samsung Electronics and SK Hynix's combined 55 trillion won share buyback program is nearing completion: Samsung has essentially completed approximately 15 trillion won of its buyback, while SK Hynix's 400 trillion won plan is about 80% complete, expected to end ahead of schedule in November. On October 7th, net buying by "other institutional investors" decreased from an average of approximately 1.6 trillion won per day to 709 billion won, causing the KOSPI to fall 1.98% and close near a low of 6803.90 points. On October 8th, the index came under pressure again due to continued selling by foreign investors and institutions, ETF portfolio adjustments, and option expiration. It's important to distinguish that Samsung's buyback is primarily for employee incentives, while SK Hynix plans to cancel shares; therefore, their impact on per-share value differs.