World's best-performing stock market of 2026 is the worst-performing in March

Core Insights - The Korean economy has been supported by relatively cheap energy through 2025, which has positively impacted growth [1] - The AI boom has significantly boosted returns for memory chip-makers in Korea, contributing to their financial performance [1] - Both the advantages of cheap energy and the AI-driven growth are diminishing rapidly, indicating potential challenges ahead for the economy and the semiconductor sector [1] Economic Impact - Cheap energy has been a crucial factor in powering the Korean economy, providing a competitive edge [1] - The memory chip sector has experienced supercharged returns due to the AI boom, highlighting the importance of technological advancements in driving profitability [1] Future Outlook - The fading of cheap energy and the AI boom suggests that the current economic momentum may not be sustainable [1] - Companies in the memory chip industry may face increased pressure as the dual drivers of growth weaken [1]