South Korea has delayed the planned June 29 launch of single-stock weekly options covering shares including Samsung Electronics and SK Hynix, extending a regulatory pause driven by market volatility concerns. A Korea Exchange representative said no decision has been made yet, while regulators remain cautious after sharp stock-market swings and after warning last month that single-stock leveraged ETFs had worsened negative side effects. The postponement underscores a preference for market stability over a faster expansion of trading products, potentially limiting short-dated tools often used for hedging and short-term positioning.