7/24/2026
South Korea Value Creators Report 2026: A Wake-Up Call for Undervalued Companies
Boston Consulting Group News (07/24/26) Lee, Joonho; Kaku, Ichiro; Kim, Seoha; et al.
South Korea’s stock market has forced investors to reconsider the “Korea Discount,” one of Asia’s most persistent undervaluation stories. The Korea Composite Stock Price Index (KOSPI) tripled between the end of 2024 and May 2026, lifted by government reform, AI-fueled semiconductor demand, and rising momentum in defense, shipbuilding, and nuclear power. A market long viewed as structurally undervalued suddenly began to look like one in the early stages of a rerating. The shift is significant because the Korea Discount was never just about low multiples. It reflected deeper concerns about shareholder returns, capital allocation, and governance structures that often appeared to favor controlling shareholders over minority investors. Recent reforms have begun to address those issues, while earnings momentum in globally competitive sectors has given investors a reason to reassess South Korea’s potential. Yet BCG’s 2026 South Korea Value Creators study finds that the rally has not lifted all companies equally. More than 60% of listed South Korean enterprises still trade below book value, and much of the market’s recent gain has been concentrated in a handful of sectors. The first wave of South Korea’s rerating was powered by sector momentum and policy reform. The next will depend on whether companies can improve capital efficiency, strengthen shareholder returns, and earn the investor trust required to sustain higher valuations. Those that fail to do so will face greater pressure from shareholders. South Korea’s equity market delivered one of the strongest performances among major global markets in 2025. The KOSPI's total shareholder return (TSR) reached approximately 76%, far exceeding the roughly 22% average across the top ten global indices. Almost all of that return came from share-price appreciation rather than dividends, suggesting that the rally was not simply the result of higher cash returns to shareholders. It reflected a broader shift in how investors valued South Korean equities. South Korea’s equity market delivered one of the strongest performances among major global markets in 2025. That shift was visible in South Korea’s price-to-book ratio (PBR). The KOSPI’s average PBR rose from 0.8x in 2024 to 1.4x at the end of 2025, with further expansion to 1.9x expected in 2026. At the same time, market expectations for return on equity (ROE) rose sharply: from 7.0% in 2024 and 7.7% in 2025 to 22% in 2026, and is projected to sustain that level in 2027. Because PBR is closely linked to an organization’s ability to generate returns above its cost of equity, this improvement suggests that investors are beginning to reassess whether South Korea’s long-standing structural discount is still justified. Two forces drove this first wave of rerating. The first was earnings momentum in four sectors: semiconductors, shipbuilding, defense, and nuclear power. These sectors benefited from powerful structural tailwinds, including AI-driven demand for memory chips, rising geopolitical demand for defense and shipbuilding, and renewed policy and export momentum in nuclear power. As a result, their market capitalizations rose sharply, and their growing weight in the index lifted the broader market. The total KOSPI market capitalization expanded approximately threefold compared with 2024, with the market cap of semiconductors and hardware growing approximately fivefold. Shipbuilding, defense, and nuclear power each grew three- to sixfold. The picture for other sectors—financials, autos, health care, consumer goods, and media and entertainment—is markedly different. Market cap gains for most of these sectors were less than twofold over the same period, and profitability improvement was limited. The second force was government reform. South Korea’s capital market revitalization policies directly targeted several of the issues long associated with the Korea Discount: weak shareholder returns, inefficient capital allocation, governance structures centered on controlling shareholders, dual listings, and concerns about market fairness. Commercial law amendments, the Corporate Value-Up Program, dividend tax reforms, and proposed restrictions on value-destructive corporate structures all signaled a more forceful effort to align corporate behavior with shareholder value. These reforms matter because they address the institutional roots of South Korea’s valuation gap. Expanding directors’ fiduciary duties toward all shareholders, strengthening audit committee independence, encouraging disclosures, incentivizing dividends, and tightening scrutiny of dual listings all point in the same direction: a market in which capital efficiency and shareholder returns become harder for enterprises to ignore. Despite the recent rally, however, South Korea’s estimated 2026 PBR of 1.9x remains below that of the United States, Taiwan, India, and Europe. Critically, the improvement has been highly concentrated. More than 60% of listed South Korean firms still trade below book value. Outside the four leading sectors, average ROE stands at around 7%—below the roughly 10% cost of equity most investors would require. An ROE below COE means the business is not generating even the minimum return required on the equity capital that shareholders expect. These conditions create a paradox. On headline metrics, South Korea now appears to have one of the highest ROE profiles among major equity markets. But investors remain cautious because much of that improvement is concentrated in a few cyclical or globally exposed sectors, especially semiconductors. The broader market has not yet demonstrated a structural, economy-wide improvement in capital efficiency. That is why the first wave of South Korea’s rerating should be seen as a beginning, not an endpoint. Government policy and sector earnings have changed investor expectations. But a sustainable rerating will require broader corporate action. The next phase will depend on whether businesses beyond semiconductors, shipbuilding, defense, and nuclear power can improve ROE, allocate capital more effectively, and deliver consistent shareholder value. For South Korean companies, improving TSR is no longer simply a matter of investor preference. It is becoming a strategic imperative. There are two reasons. First, South Korea’s equity market is becoming more important to household wealth creation. Household assets have historically been concentrated in real estate and other illiquid assets, but policy efforts are increasingly aimed at shifting more capital toward equities. As a result, the number of domestic retail investors has risen sharply. With equity ownership broadening, corporate value creation becomes not only a market issue but also an economic and social priority. Second, shareholder activism is becoming more forceful. Organizations that underperform on TSR may face pressure that extends beyond calls for higher dividends. Activists are increasingly willing to push for board changes, executive replacement, portfolio restructuring, and asset sales. Shareholder activism is becoming more forceful. Organizations that underperform on TSR may face pressure that extends beyond calls for higher dividends.
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