Overview
- Regulators will raise the minimum deposit for single‑stock 2x leveraged ETFs to 30 million won in cash only and require trades in 20‑share batches, and they have temporarily halted new listings tied to Samsung Electronics and SK hynix.
- The measures were accelerated after heavy retail inflows into May‑launched leveraged ETFs drove large volume and amplified price swings in the two chip names.
- Officials cited product mechanics that double daily moves and use futures-based replication, which can magnify intraday moves and produce outsized losses for investors who hold positions without daily rebalancing.
- Brokerages must change systems to enforce the new cash rules and may be asked to suspend transactions if they do not comply, raising the cost and friction for retail traders who previously used stocks or bonds as substitute collateral.
- Authorities warned they will keep monitoring flows and could take further steps if concentrated leveraged positions or extreme volatility persist, a response shaped also by cross‑market links to Hong Kong‑listed products and limits on institutional stabilizers.