SK Chairman's $970M Divorce Hinges on 5.45x Valuation Date Swing

The Seoul High Court will deliver its verdict on July 24, 2026 in the largest divorce asset-division case in Korean history, deciding whether SK Group Chairman Chey Tae-won must share stock gains that multiplied 5.45 times after separation. The core fight — which valuation date applies, April 2024 (149,500 KRW per share) or June 2026 (815,000 KRW) — mirrors the exact question California courts resolve daily: when do you value an asset that keeps growing during a divorce?

Key Facts

The underlying litigation, reported by The Korea Herald, centers on a settlement once valued at roughly 1.38 trillion KRW (about $970 million) before the Supreme Court sent it back for recalculation in October 2025. The retrial turns on a single technical question with enormous consequences: at what point in time do you fix the value of shares that appreciated dramatically on the strength of an AI and semiconductor rally?

Why this valuation-date question matters legally

The valuation date determines who captures post-separation appreciation, and in high-asset divorces that single decision can swing an award by hundreds of millions of dollars. In the SK case, the difference between the April 2024 price and the June 2026 price is 5.45 times — the same underlying legal problem that California family courts confront whenever a business, stock portfolio, or professional practice keeps growing after the spouses separate.

The question is not merely accounting. Choosing a valuation date allocates the risk and reward of market movement. If a court values shares as of the date of separation, the owning spouse captures all later gains — and absorbs all later losses. If a court values as of trial, the non-owning spouse shares in appreciation that occurred while the couple was already living apart. Korean courts and American courts approach this differently, but both must answer it. That is why a Seoul courtroom decision is worth watching from California: the mechanics of dividing appreciating assets are a global divorce problem, and the reasoning translates.

How California law handles post-separation appreciation

California generally values community assets as of the date of trial, not the date of separation — a default set by Cal. Fam. Code § 2552. This means that in a California divorce, a business or stock holding that grows in value between separation and trial is typically valued at its later, higher figure, and each spouse's community share reflects that growth. The statute allows a court, for good cause, to pick an alternate valuation date closer to separation, but the presumption favors trial-date value.

The date of separation itself is defined by Cal. Fam. Code § 70, and it matters because Cal. Fam. Code § 771 makes the earnings and accumulations of each spouse after separation their own separate property. So California draws a line: community effort and community assets are generally valued as of trial, but income a spouse earns from their own labor after separation belongs to that spouse alone.

The hard cases sit in between. When a separately owned business appreciates after separation, California courts apply apportionment formulas — the Pereira and Van Camp approaches — to separate market-driven growth from growth attributable to a spouse's continued personal effort. Under equitable distribution principles used in other states, the analysis differs, but California's community property framework, anchored by Cal. Fam. Code § 760, presumes that property acquired during marriage is community property divided equally. If Chey's dispute were litigated in California, the central battle would be identical: is the post-separation stock surge community appreciation to be shared, or separate growth belonging to the owner?

Understanding the divorce process and how residency requirements affect where a high-asset case is heard is a useful first step for anyone navigating a complex property division.

Practical takeaways for California residents

1. Pin down your date of separation early. Because Cal. Fam. Code § 771 treats post-separation earnings as separate property, the separation date can shift millions in a high-asset case. Document when the marriage genuinely ended — physical separation plus intent not to resume the marriage.

2. Expect trial-date valuation as the default. Under Cal. Fam. Code § 2552, appreciating assets are usually valued at trial. If you own a growing business or concentrated stock position, that later valuation may be higher — plan for it rather than assuming separation-date figures control.

3. Get a professional valuation, not a guess. When the asset is a business or private company stock, hire a forensic accountant and business appraiser. Courts weigh expert testimony heavily, and a 5.45x disagreement — like the one in the SK case — usually reflects competing expert methodologies.

4. Understand apportionment for separately owned businesses. If you brought a business into the marriage and it grew, California's Pereira and Van Camp formulas decide how much growth is community. Ask counsel which formula favors your facts.

5. Estimate your exposure before you negotiate. Use our California divorce cost estimator and review a personalized divorce roadmap to map the property-division decisions ahead. For concentrated or high-value assets, consult a California divorce attorney before making settlement commitments.

The SK verdict will not bind any American court, but it is a vivid reminder that valuation-date rules are among the highest-stakes technical questions in divorce law. A single date can multiply an award fivefold. In California, the default answer is trial-date value under Cal. Fam. Code § 2552 — but the exceptions, especially for separately owned appreciating assets, are where cases are won and lost.

If you are facing a divorce involving a business, stock holdings, or other assets that keep changing in value, the timing of valuation deserves early, careful attention with qualified counsel. A brief conversation now can prevent a costly surprise later.

This article discusses recent news and provides general legal commentary. It does not constitute legal advice. Every case is unique. Consult a qualified family law attorney for advice specific to your situation.