South Korea's Financial Services Commission chair Lee Eog-weon urged asset
managers to disperse single-stock leveraged ETF rebalancing across the trading
day to curb sharp price swings from concentrated pre-close orders, Yonhap
reported. Fund managers typically execute most rebalances between 15:20 and
15:30 local time to target 2x daily returns; Lee warned such clustering can
accelerate rallies and deepen sell-offs. He added some products involve more
than 20 liquidity providers, contributing to excessive turnover, increased
inter-provider trading and amplified arbitrage activity.