SK Hynix's American Depositary Receipts (ADR) begin trading today under the ticker SKHYV, before permanently switching to SKHY on Monday. The ADR listing provides US investors easier access to SK Hynix shares without currency conversion issues, potentially leading to a premium over local Korean shares. The company's HBM memory fundamentals remain strong, with demand expected to overwhelm supply in the coming years due to increasing dollar value per NVIDIA AI server.