SK hynix will allocate 50% of its free cash flow to shareholder returns from 2025 to 2027.
Securities firms estimate these annual returns could reach 100 trillion Korean won ($72 billion).
The move aligns with a broader trend among South Korean tech giants, including Samsung Electronics, to increase shareholder value.
Analysts expect the policy to trigger a rebound in SK hynix shares and the wider KOSPI index.
The company plans to announce specific implementation details in the third quarter.