KOSPI (South Korea stocks) is up over 200% from its 2025 lows. While everyone was watching the S&P 500 and chasing crypto, South Korea quietly ran the greatest stock market rally in a generation. Here is how they did it. South Korea is home to Samsung and SK Hynix, the two companies that make the memory chips every AI model runs on. Every data center, every ChatGPT response, every AI query needs their chips to function. When the AI boom hit, demand exploded. SK Hynix tripled in 2025. Samsung doubled. Those two stocks make up a third of the entire Korean market, when they run, everything runs with them. KOSPI went from $2,700 to nearly $8,000 in roughly a year. Most people know AI is changing everything. Very few bothered to ask which country was supplying the hardware that makes it all possible.