[Edaily Reporter Park Sun-Yeop ] Following sharp declines during regular trading hours, SamsungElectronics and SK hynix are continuing to fall in the after-market on the alternative exchange Nextrade (NXT). Although the government announced measures to address single-stock leveraged products, analysts note that the plan lacked structural reforms to directly mitigate the shock to the spot market, suggesting it has failed to help restore investor confidence.
According to Nextrade on the 16th, SamsungElectronics(005930)was trading at 252,500 won in the after-hours market at 5:32 p.m. that day, down 27,000 won (9.66%) from the previous trading day. This is 2,500 won (0.98%) lower than the regular session closing price of 255,000 won. SamsungElectronics fell 24,500 won (8.77%) during regular trading hours.
At the same time, SK hynix(000660)shows a price of 1,832,000 won, down 250,000 won (12.01%) from the previous trading day. Although it closed at 1,842,000 won—down 240,000 won (11.53%)—during regular trading hours, it fell an additional 10,000 won (0.54%) after the market closed.

The government and relevant agencies announced measures to address single-stock leveraged products following a market situation review meeting chaired by the Deputy Prime Minister for Economic Affairs. They decided to temporarily suspend new listings of single-stock products until the market stabilizes and to immediately ban advertising and promotional marketing for existing products.
The management standard for domestic ETF price deviations by liquidity providers (LPs) will be tightened from the current 3% to 2%. The minimum margin requirement for individual investors will be raised from 10 million won (including substitute securities) to 30 million won in cash, and the trading unit for domestic single-stock leverage products will be expanded from 1 unit to 20 units. The required pre-trading education time will also be increased from 2 hours to 3 hours.
However, measures to mitigate the direct impact on the spot market—such as spreading out the demand for rebalancing, where asset managers buy and sell underlying stocks in response to price fluctuations, or adjusting investment multiples—were not included in this set of measures. The government plans to consider additional measures in stages if the market does not stabilize.
Kang Jin-hyuk, a senior researcher at Shinhan Investment Securities, said, “While the measures are centered on strengthening the obligations of asset management firms and securities companies and restricting investor access, they can be interpreted as merely a partial adjustment to existing regulations.” He added, “Since the policy was announced at 4:00 p.m., disappointed sellers have been offloading shares, particularly in SamsungElectronics and SK hynix, on the NXT.”