Leveraged ETFs tracking AI chipmakers Samsung and SK Hynix have surged in South Korea. The SK Hynix-linked fund's assets have grown twentyfold this year, prompting regulators to curb promotional activity amid sharp volatility spikes tied to daily rebalancing.
Exchange-traded funds (ETFs) have long been a popular investment vehicle, offering investors a low-cost way to gain exposure to baskets of stocks while trading them like individual shares. However, a…