Protesters demonstrate against the country's president at the National Assembly in Seoul, South Korea a day after President Yoon Suk Yeol's shock martial law announcement that he reversed hours later.Chung Sung-Jun/Getty ImagesSouth Korea's political turmoil is likely to make the 'Korea discount' in stocks harder to shake off.South Korean President Yoon announced martial law late on Tuesday, shocking markets.The Kospi Index slumped as much as 2.2% amid political turmoil and protests against Yoon's decision.South Korean President Yoon Suk Yeol's short-lived martial law announcement is undoing one of his top goals: boosting the value of stocks.On Wednesday, South Korea's Kospi Index fell as much as 2.2% and closed 1.4% lower.