SK Hynix announced a 40 trillion won ($28.61 billion) share buyback and cancellation program, coupled with a pledge to allocate more than 50 percent of free cash flow generated between 2025 and 2027 to shareholders. The program represents a shift from the company's prior policy of allocating *up to* 50 percent of cumulative free cash flow—a structural change that signals management confidence in the durability of high-bandwidth memory pricing.

The buyback targets 24 million treasury shares over a three-month window from Aug. 20 through Nov. 19. The timing and scale carry embedded forward guidance: management does not anticipate a contraction in HBM pricing over the near term, according to Josh Gilbert, analyst at eToro.

SK Hynix holds approximately 69 trillion won in net cash as of Q2, providing dry powder for both the buyback and ongoing capex. The company has committed hundreds of billions of dollars to new fabrication capacity in South Korea to meet AI-related memory demand, while maintaining a 10-year profit-sharing agreement with workers that includes share-based bonuses.

Sanjeev Rana, analyst at CLSA, noted that the 40 trillion won commitment should satisfy near-term investor expectations, with room for additional distributions and special dividends later.

The announcement intensifies pressure on Samsung Electronics, which is reportedly preparing shareholder returns of up to $80 billion pending a board decision in late October. Micron Technology has pledged to return 100 percent of excess cash to shareholders, establishing a competitive baseline for memory suppliers.

Market reaction was volatile. SK Hynix shares fell nearly 10 percent on announcement, then recovered with a 13.9 percent surge to KRW1.708 million in subsequent trading. Samsung shares rose 9 percent to KRW269,750, reflecting investor optimism about its planned payout.

SK Hynix stock had reached record highs in June before declining during investor concerns about the sustainability of U.S. technology spending on AI infrastructure. The buyback announcement directly addresses that concern by committing capital based on pricing assumptions three years forward.