Korea leverage ETF. Photo by BeInCrypto South Korea is tightening oversight of its most aggressive retail traders, introducing mandatory training for anyone who wants to trade foreign leveraged ETFs. The move follows a record surge of Korean money into high-risk US products—and growing concern that this speculative wave is distorting global markets. South Korea’s Regulators Step In After a $7 Billion Monthly Surge South Korea’s Financial Supervisory Service (FSS) will require retail investors to complet ...