Why Do You Now Need 30 Million Won Cash to Trade Samsung and SK Hynix Leverage Products?

On July 16, South Korea's Financial Services Commission, Financial Supervisory Service, and Korea Exchange jointly announced a rule change: starting August 5, investors in single-stock leveraged products tied to Samsung Electronics or SK Hynix must hold at least 30 million won (roughly $22,000) in cash as margin.

What are leveraged products — and why are they risky?

Leverage means using borrowed power to amplify your position. A 2x leveraged ETF tied to Samsung Electronics delivers +2% when Samsung rises 1% — but also −2% when it falls 1%. Gains and losses are both doubled.

Why did regulators step in now?

Samsung and SK Hynix have surged this year on the AI semiconductor boom, drawing a flood of retail money into single-stock leverage products. As prices climbed, so did the risk of a disorderly unwind — if prices suddenly reversed, leveraged investors could face cascading losses, amplifying market volatility. Regulators decided to raise the barrier before that happened.

The announcement landed on the same day as the Bank of Korea's rate hike, and the combination pushed KOSPI back below 7,000 — some investors called it 'Black Thursday'.

What does the new margin rule actually change?

Margin (or deposit) is collateral you park with your brokerage before trading certain products. Under the new rules, the cash portion of that margin rises sharply, effectively requiring at least 30 million won in cash to open new positions. Existing holders won't be forced to sell immediately, but adding to their position will be subject to the new threshold.

What should a beginning investor take away?

This rule only applies to leveraged products — buying Samsung or SK Hynix as regular shares or through a standard ETF is completely unaffected. Leveraged products are designed for experienced traders with high risk tolerance. If you're just starting out, there's no need to go near them.