Goldman - "As of July 13, a total of over 1.2 million leveraged retail accounts across the Korean market triggered margin calls. Approximately 320,000β360,000 accounts were fully liquidated by brokers. South Korea has an adult population (aged 15β64) of 35.7 million peopleβ¦ i.e. 1 in 30 (3.4%) adults got margin called."