No more single-stock leveraged ETFs? Korea weighs curbs

South Korea's ruling party has begun reviewing possible curbs on single-stock leveraged exchange-traded funds tied to Samsung Electronics and SK hynix, as regulators step up scrutiny of products that critics say are fueling market concentration and volatility.

Asset managers expect no further listings of the products, while some industry officials have begun calling for existing funds to be delisted to cool what they describe as an overheated market.

The products have grown rapidly since their d ...