Samjjeomsam CampusSeptember 29, 2026

Companies leaving back doors open: The real reason parent-subsidiary listings arise (Professor Kim Ji-young)

What to look for
Starting with reports that Solidigm is considering a Nasdaq listing, this examines the exemptions in the parent-subsidiary listing guidelines, how SK's corporate governance structure developed, and the difference between operating profit and net income attributable to controlling shareholders, using specific figures.
Why it matters
Understanding the criteria for insignificant subsidiaries, non-controlling interests, and the calculation of ownership through a pyramid structure can help shareholders assess for themselves whether shareholder value is being diluted when future parent-subsidiary listing announcements or holding-company news emerge.

Professor Kim Ji-young examines the structure behind Korea's controversy over parent-subsidiary listings, prompted by reports that SK hynix subsidiary Solidigm is considering a Nasdaq listing. She argues that parent-subsidiary listings are directly linked to the Korea discount and identifies tax-driven corporate governance problems as the root cause. She points out that although the current guidelines emphasize the 3% rule, they leave back doors open through exemptions for insignificant subsidiaries, exclusions from review, and a blind spot concerning overseas listings. She explains that Boston Dynamics is a loss-making company accounting for only 0.08% of consolidated revenue, yet its market-estimated valuation amounts to 30~100% of Hyundai Motor's market capitalization; nevertheless, it can pursue a parent-subsidiary listing under the insignificant-subsidiary exemption. She emphasizes that operating profit is reported on a consolidated basis, but when non-controlling interests are substantial, it does not all belong to the parent company's shareholders, so investors need to look at net income attributable to controlling shareholders. She analyzes how, in the pyramid structure running from SK through SK Square to SK hynix, the controlling shareholder's effective ownership is only in the 1% range, and the divergence between dividend rights and voting rights produces irregular structures. Although amendments to the Commercial Act introduced directors' duty of loyalty to shareholders, she worries that unless the gap between form and substance and corporate culture change, it will be difficult to prevent listings across 5 tiers and the spread of broken-window behavior. All directional outlooks are the speaker's conditional judgments, not definitive predictions of short-term prices.

Timeline

8 segments

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Educational information only; not investment advice.