The South Korean stock market has reached a historic milestone, with the KOSPI surging past 7,800 points.
This powerful rally is primarily fueled by a global AI-driven semiconductor supercycle. South Korean tech giants like Samsung Electronics and SK Hynix are posting record-breaking profits as demand for high-performance memory chips, especially HBM, skyrockets. This demand stems from massive investments in AI data centers by global Big Tech companies, creating a narrative of a prolonged memory shortage that could last into 2027. This cyclical boom in semiconductors, the backbone of the KOSPI, has attracted a flood of foreign investment, driving the index to new heights.
However, this isn't just a cyclical story; it's also a structural one. Several key institutional changes have bolstered investor confidence. First, the inclusion of South Korean government bonds into the FTSE World Government Bond Index (WGBI), which began in April 2026, is expected to bring in tens of billions of dollars in stable, passive foreign capital. This helps stabilize the Korean won and reduces the overall market risk premium. Second, significant corporate governance reforms are underway. A landmark revision to the Commercial Code now mandates the cancellation of repurchased treasury shares (buybacks), a move aimed at directly increasing shareholder value. The government's recent sale of its NXC stake, with the company planning to cancel the shares, serves as a prominent example of this new focus on capital efficiency.
These factors provide the context for the government's recent statements. Despite the record-breaking rally, officials believe the market remains undervalued, pointing to the persistent 'Korea Discount' where many companies still trade below their book value (low PBR). This is why the government is pushing its "Value Up" program to encourage better corporate governance and shareholder returns. In line with this market-friendly stance, it has also signaled a delay in implementing a planned financial investment income tax, prioritizing market stability and momentum.
In essence, the current KOSPI rally is a powerful combination of a booming industry and foundational policy shifts. While the semiconductor cycle provides the engine, ongoing governance reforms are laying the tracks for a more sustainable and fairly valued market.
- PBR (Price-to-Book Ratio): A financial ratio used to compare a company's current market price to its book value. A PBR below 1 can suggest the stock is undervalued.
- FTSE WGBI (World Government Bond Index): A broad index of global sovereign bonds. Inclusion is seen as a mark of a developed and stable bond market, attracting large inflows from passive investment funds.
- Korea Discount: The tendency for South Korean companies to have lower valuations compared to their global peers, often attributed to issues like weak corporate governance, low dividend payouts, and geopolitical risks.