South Korea is facing a significant wave of closures for actively managed Exchange Traded Funds (ETFs) next month. Several active ETFs are slated for delisting due to failing to meet performance benchmarks and maintain sufficient assets under management. This comes despite a generally bullish market ("bull market" or "jang" in Korean financial slang) that has seen increased investment in ETFs overall. The delistings highlight the challenges faced by actively managed funds in competing with passively managed index funds, particularly in a rapidly growing ETF market. Fund managers cite insufficient returns as the primary reason for the closures, indicating investor preference for better-performing options. The upcoming delistings are expected to consolidate the ETF landscape and potentially shift investor focus towards more successful products. This situation underscores the importance of consistent performance for active ETFs to attract and retain investors.