According to Eric Balchunas, South Korean investors put about $7 billion into US leveraged ETFs in October and $30 billion year-to-date, signaling heavy retail demand for high-beta exposure (source: Eric Balchunas on X). According to Eric Balchunas, South Korean authorities will require investors to complete a DMV-style, hour-long training class on volatility drag before they can use leveraged ETFs (source: Eric Balchunas on X). According to Eric Balchunas, the reported $7 billion October inflow equals roughly 23% of the cited YTD total, indicating concentrated monthly allocations that active traders should factor into execution and liquidity plans around these ETFs (source: Eric Balchunas on X). According to Eric Balchunas, the surge in leveraged ETF usage by Korean investors is a contemporaneous indicator of risk appetite that crypto traders monitoring Korean flows may track for sentiment context (source: Eric Balchunas on X).