The benchmark KOSPI, along with shares of Samsung Electronics and SK hynix, is displayed at Hana Bank's dealing room at the bank's heaquarters in Seoul, Monday.

Yonhap "Why are they penalizing only retail investors?

If regulators can't fix the problem, they should just delist these products.

They're wreaking havoc on the market," one user recently wrote on a Naver stock investing community.

"I've lost nearly 60 percent investing in these leveraged ETFs (exchange-traded funds) myself, but these measures won't do anything to restore order to the market," another wrote.