South Korean financial regulators have mandated a fivefold increase in margin requirements for leveraged exchange-traded funds, a sharp intervention aimed at cooling speculative trading in the semiconductor sector.
The new rules, reported by The Korea Herald, significantly raise the cost of borrowing for investors using these high-risk instruments, effectively squeezing leverage in products that have seen surging retail interest.
The policy shift comes as several fund managers were preparing to launch new leveraged products focused on individual stocks, with memory chipmaker SK Hynix emerging as a primary target for these new offerings.
By tightening access to credit for these specific ETFs, authorities are attempting to decouple the underlying equity markets from the amplified volatility generated by retail speculation.
This development follows earlier warnings from the Financial Services Commission (FSS), whose chief previously cautioned against the "tail wagging the dog" dynamic, where leveraged ETF flows distort the price discovery of the underlying assets.
The regulator’s concern centers on the potential for these products to exacerbate market swings, particularly in high-beta sectors like semiconductors where sentiment can shift rapidly.