South Korea Triples Deposit Margin For Leveraged ETFs - iShares MSCI South Korea ETF (ARCA:EWY), SK hynix
South Korea regulators tripled the cash margin deposit for leveraged single-stock ETFs to 30 million won (about $20,300) from 10 million won, requiring cash rather than allowing up to 70% to be covered with existing stocks or bonds. They also paused new listings, limited advertising, and raised the minimum order size. iShares MSCI South Korea ETF (EWY) fell 21.7% in four weeks. SK hynix ADRs began Nasdaq trading July 10 after a $26.5B listing and saw sharp daily swings.
How this was made
The 30-second read
Why it matters
By forcing cash-only margin and raising minimum order size, regulators likely reduce leverage capacity and speculative turnover, which can amplify short-term volatility but potentially improve market stability later.
Market read
Traders should reassess leveraged Korea exposure risk due to cash-only margin requirements and watch for continued volatility in newly listed SKX.
What to watch
The article does not quantify how much of EWY’s holdings or flows are directly tied to the newly restricted Korean leveraged products, so the transmission to EWY may be indirect.
Background
South Korea introduced emergency measures to contain volatility tied to leveraged single-stock funds, including higher cash margin deposits and restrictions on listings and advertising.
Market effects
Could reduce retail demand and liquidity for leveraged single-stock products, increasing volatility spillover into broader Korea equity trading.
KOSPI volatility containment measures may dampen speculative flows and alter margin-driven positioning across Korean brokerages.
May affect global investors’ hedging and ETF allocation decisions for Korea-linked leveraged exposure, including US-listed proxies.
Counterpoint
Higher margin and cash-only requirements could stabilize markets over time, making the initial selloff an overreaction rather than a lasting trend.
Key entities
- ETFiShares MSCI South Korea ETF
Used as the proxy for South Korea equity performance and referenced as down 21.7% over four weeks.
- US-listed ADRSK hynix
Nasdaq-listed ADR referenced for its first days of violent trading after the July 10 listing.
- RegulatorSouth Korea regulators (FSS)
Implemented the emergency margin and trading restrictions; FSS governor is quoted.



