SK Hynix stock: Nasdaq trading starts today as memory chipmaker makes highly anticipated U.S. market debut

The South Korean tech giant’s record listing will allow Americans to invest in a company that has benefited immensely from the AI infrastructure boom. While two of the best-known AI companies have yet to make their market debuts—namely Anthropic and OpenAI—2026 has already seen numerous AI-related IPOs, including Elon Musk’s SpaceX and the commercial AI semiconductor maker Cerebras Systems.