Korean stock market braces for NPS rebalancing sell-off

The South Korean stock market is preparing for a significant shift as the National Pension Service (NPS), one of the country’s largest institutional investors, begins a planned rebalancing of its domestic equity holdings. This move comes amid a sharp rise in the Kospi index, which has pushed the NPS’s current allocation of domestic stocks beyond its target level, prompting the pension fund to take action. The anticipated sell-off could create pressure on the market, particularly as the NPS is known for its substantial influence due to its vast asset base.

The NPS, which manages approximately 600 trillion won ($480 billion) in assets, has been deferring its rebalancing efforts until now. By maintaining its higher-than-target allocation to domestic equities, the pension fund allowed itself to benefit from the recent surge in the Kospi. However, with the index climbing rapidly, the NPS is now set to start trimming its holdings starting Wednesday. This decision follows a standard practice among institutional investors, where excess allocations are reduced to align with predefined targets, ensuring a balanced and less volatile portfolio.

The target allocation for domestic equities for the NPS this year is 20.8 percent, with a permissible deviation of up to 8 percentage points. That means the maximum allowable allocation could reach 28.8 percent. While the NPS has not officially disclosed the exact value of its domestic equity holdings, industry estimates suggest that these holdings currently make up about 30 percent of its total assets—an increase of nearly 5 percentage points since the end of April. This indicates a notable shift in the fund’s investment strategy, driven by the strong performance of the domestic market.

Brokerage firms have offered varying projections regarding the scale of the upcoming sell-off. Shinyoung Securities estimates that if the Kospi reaches the 9,000-point mark, the NPS could potentially sell up to 74.4 trillion won ($48 billion) worth of domestic stocks. In contrast, Daishin Securities suggests the fund might need to offload between 20 trillion and 57 trillion won to bring its allocation back into alignment with its target. These wide-ranging estimates reflect the uncertainty surrounding the exact timing and magnitude of the sell-off, as well as the potential volatility that could follow.

Despite the differences in projections, market analysts generally agree that the NPS will aim to minimize the impact of its rebalancing on the broader market. They anticipate that the pension fund will spread out its sales over time rather than executing them all at once. Analysts such as Cho Yong-gu from Shinyoung Securities predict that the NPS may also adjust its annual, monthly, and daily rebalancing limits to reduce market disruption. Additionally, there is speculation that the fund could raise its year-end target allocation for domestic equities, reflecting a more optimistic outlook on the market's future performance.

In response to concerns about the potential market impact, NPS Chairman and CEO Kim Sung-joo emphasized the fund’s commitment to operating responsibly. He noted that while private investors might act more aggressively in pursuit of profits, the NPS operates under a strict principle of minimizing market disruption. His comments underscore the cautious approach the pension fund is taking, highlighting its role as a stabilizing force in the financial system. As the NPS moves forward with its rebalancing plan, the market will be watching closely for signs of how this major player will navigate the challenges ahead.