In Seoul on a Thursday morning, SK Hynix made a declaration that transcends quarterly earnings: by accelerating a $28.7 billion buyback while simultaneously pledging to return more than half its free cash flow to shareholders through 2027, the South Korean chipmaker is staking its credibility on the belief that the age of AI-driven memory demand is not a passing wave but a rising tide. The move arrived alongside a $39 billion commitment to new manufacturing capacity — a rare double gesture of confidence that the market, up 12 percent by midday, chose to believe.