The Era of NPS Net Selling: KOSPI Liquidity Vacuum and the Forced Liquidation Cycle [EN]

"Population aging alters the cash flow structure of pension funds. In the phase of increasing beneficiaries and decreasing contributors, pension funds face the constraint of maintaining a balance between the fund's long-term stability and pension payment liquidity. This is not a moral choice, but a structural adjustment stemming from demographic realities."
— System View Macroeconomic Framework

* The original data and baseline analysis of this macroeconomic shift are available in the Korean report. -> Korean Version

Prologue: Perspective of the Analysis

This report analyzes the phenomenon of the 'National Pension Service (NPS) adjusting its domestic asset weighting,' which is currently impacting the South Korean capital market in 2026, as a structural change in fund management resulting from demographic aging. With the retirement of the baby boomer generation, the NPS is responding to structural shifts between contribution revenues and benefit payments. These changes are affecting the pension fund's domestic equity weighting, while simultaneously requiring consideration of two constraint conditions: the goal of maintaining the fund's long-term rate of return and the stability of pension benefit payments. Capital market participants must recognize this as part of a structural adjustment process and concurrently factor in the market's asset allocation direction.

EXECUTIVE SUMMARY

The increased volatility and box-range phenomenon of the KOSPI in 2026 are the results of multiple interacting factors. One of them is that the NPS is adjusting its domestic asset weighting in accordance with the goals of responding to the aging population and achieving global diversification. To secure payment liquidity due to the surging number of beneficiaries and to enhance long-term returns, the pension fund is phasing down its domestic equity weighting and increasing its allocation to globally diversified assets with relatively higher yields.

During this process, the supply and demand dynamics of domestic assets are shifting. Investors can review reallocating capital toward companies possessing cash-flow generation capabilities (dividends, share cancellations) and global competitiveness amidst this changing supply-demand structure.

01. Macroeconomy: Demographic Shifts and Pension Fund Cash Flow Adjustments

└ Structural Trends in Contributions vs. Benefit Payments (Hard Data)

The transformation of South Korea's population pyramid is gradually altering the NPS's supply and demand structure. Based on data from Statistics Korea and the National Pension Service, the NPS is projected to enter a 'Crossover Point' around 2045, where benefit payments will exceed contribution revenues. As of [2026], to prepare for this deficit point, the pension fund is undergoing phased adjustments to secure long-term stability by enhancing fund management returns and diversifying asset allocations. This should not be understood simply as 'selling off domestic stocks,' but as part of a portfolio rebalancing for the long-term sustainability of the fund.

└ Background and Implications of Adjusting Domestic Equity Weighting

Looking at the asset allocation targets officially announced by the National Pension Fund Management Committee, they are pursuing a policy of gradually adjusting the domestic equity weighting from the previous 14% range while expanding the weighting of overseas assets. There are several factors behind this adjustment. First, the relative return of the South Korean stock market is lower compared to advanced markets like the U.S. Second, reducing portfolio risk through global diversification. Third, the necessity of holding multinational assets to hedge against local currency (KRW) exchange rate volatility. While recognizing that this rebalancing can impact market supply and demand, it must simultaneously be considered that this is part of the pension fund's legitimate fund management goals.

02. [Risk Transfer Timeline] The Time Series Impact of NPS Asset Allocation Adjustments

└ Phased Ripple Effects of Asset Allocation Adjustments on the Market

The process by which the NPS's portfolio rebalancing impacts the market can be serialized as follows:
* Phase 1 (Policy Announcement and Expectation Formation): When the NPS officially announces its plan to adjust domestic asset weighting, market participants form expectations about future cash flow changes. [Price Variable] Preemptive adjustments can occur in the valuations of large-cap stocks with high NPS ownership percentages.
* Phase 2 (Phased Capital Movement): The NPS executes its policies in phases, moving funds from domestic to overseas assets. [Price Variable] Execution is dispersed so that massive funds do not move within a limited time, allowing the market time to adapt.
* Phase 3 (Responses of Market Participants): Institutional investors, foreigners, and retail investors rebalance their portfolios to align with the changing supply-demand structure. [Price Variable] Potential for widening valuation gaps between companies with excellent cash-flow generation capabilities and those that are relatively weaker.
* Phase 4 (Market Rebalancing): As the market adapts to the new asset allocation structure, volatility may partially subside. [Price Variable] Re-evaluations may occur depending on the completion of the NPS's adjustments or signals of policy modifications.

03. System Architecture: Constraints of the Pension Fund and Market Adaptation

└ Structural Constraints of the NPS Asset Allocation Adjustment

The NPS's asset allocation policy must balance several conflicting goals. First, it has an obligation to pay pension benefits to 5 million beneficiaries. Second, it must delay the depletion of the fund as much as possible until the full-fledged retirement period of the baby boomer generation (around 2045). Third, it must enhance long-term returns through global portfolio diversification. These goals are in tension with one another. For example, prioritizing fund payment liquidity may lower returns, while prioritizing returns may make securing short-term liquidity difficult. It is necessary to understand that the NPS must find the optimal equilibrium point under these constraints.

└ Interaction Between Overseas Asset Sales and the KRW Exchange Rate

If the NPS were to sell massive overseas assets and convert them into won, the demand to buy won would temporarily increase, potentially putting downward pressure on the USD/KRW exchange rate (won strengthening). This could impact the price competitiveness of export companies. Therefore, to minimize such exchange rate impacts, the pension fund utilizes dispersed methods—such as receiving dividends overseas and staggered currency exchanges—rather than massive lump-sum exchanges. Additionally, it must be considered that if the NPS's selling of domestic stocks ultimately leads to a decrease in domestic assets, it could affect the relative attractiveness of domestic assets in the long run. This is a factor that must be carefully managed from a fund management perspective.

└ The Role of Cash Flows (Dividends) and Market Adaptation

During the process of the NPS adjusting its domestic asset weighting, companies' shareholder return policies (dividends, share cancellations) may become even more critical. This is because clear cash flows are necessary for other investors (foreigners, retail, etc.) to absorb the volume sold by the pension fund. This can encourage South Korean companies to consider more aggressive shareholder return policies than in the past. However, it must also be considered that this does not apply equally to all companies; there can be disparities between companies with dividend capacity and those with constraints.

04. Changes in the Capital Ecosystem: Restructuring the Role of Institutional Investors

└ Changing Role of the NPS and its Meaning to the Market

In the past, as the largest institutional investor in the South Korean stock market, the NPS played a stabilizing role. It was generally perceived as functioning to defend the market by buying at low prices. However, as it responds to the structural change of aging, the role of the pension fund is also changing. The fact that the pension fund must structurally maintain a net selling position signifies a transition from its past role as a 'market defender.' This means the market must adapt to a new supply-demand structure. Other institutional investors (foreigners, private equity funds), retail investors, and companies' own share buybacks may step in to share some of the roles previously undertaken by the pension fund.

└ Voluntary Corporate Responses and Market Selection

To respond to the NPS's asset allocation adjustments, some companies may review dividend policies, share cancellations, and asset restructuring. These responses are not mandatory but voluntary choices at the corporate level. Valuation gaps can arise between companies that adopt market-preferred policies and those that do not, which is a normal mechanism in a capitalist market. However, it must be recognized that not all companies have equal options in this process. The capacity for shareholder returns can vary depending on the industry, the company's growth stage, and its debt structure.

05. Historical Comparative Analysis: Portfolio Rebalancing of Japan's GPIF

└ GPIF's Asset Allocation Shift and Market Impact

In the early 2010s, Japan's Government Pension Investment Fund (GPIF) executed a massive portfolio rebalancing to respond to entering a super-aged society. The policy involved reducing the weighting of domestic bonds and stocks and expanding the weighting of overseas assets to over 40%. During this process, the Japanese stock market experienced adjustments due to changes in the supply-demand structure. However, the changes in the Japanese stock market during this period were not solely the result of the GPIF's asset allocation adjustments. Various macroeconomic factors, such as Abenomics' interest rate policies, a weakening dollar trend, and expectations for global economic growth, acted together. Ultimately, Japan was able to elicit a market re-evaluation through voluntary corporate governance reforms and the strengthening of shareholder return policies.

└ The Situation in South Korea vs. Differences from Japan

The South Korean stock market is experiencing a similar aging trend, and the government is encouraging corporate shareholder returns through the 'Corporate Value-up' program. However, South Korea's situation has several differences from Japan. First, South Korea's inheritance tax rate (up to 60%) is high internationally, which may constrain major shareholders' incentives for stock price appreciation. Second, companies requiring growth investments still account for a significant portion of South Korea's industrial structure, making it difficult for all companies to adopt high dividend policies. Third, the South Korean stock market has a high proportion of foreign investors, making it highly susceptible to changes in global interest rates and exchange rates. Considering these differences, Japan's experience may not be directly applicable to South Korea.

06. Market Adaptation Mechanisms: Review of Counter-Scenarios

└ Q1. What if institutional or foreign investors sufficiently absorb the NPS's selling volume?

[Analysis]: It is valid that the NPS's domestic asset selling volume could be absorbed by other investors. In reality, foreign investors are purchasing shares of companies with excellent cash flows and governance, and retail investors seeking dividend yields can concentrate funds in specific stocks. Furthermore, if companies expand share buybacks, they can partially alleviate the market's supply-demand pressure. In this case, the market could maintain a relatively stable appearance despite the pension fund's selling pressure. However, it must also be considered that this does not apply equally to all companies; in particular, small-to-mid cap stocks or growth stocks may find it difficult to secure sufficient demand.

└ Q2. What if the government enacts pension reforms?

[Analysis]: If the government enacts comprehensive pension reforms including premium hikes, extension of the eligibility age, and adjustment of benefit amounts, the fund depletion point could be significantly extended. For example, if the premium rate is raised from the current 9% to 13% and the eligibility age is extended to 68, the fund depletion point could be delayed by more than 15-20 years. In this case, the NPS's structural selling pressure could be considerably mitigated. However, such policy changes require the political and social consent of the public and can take a substantial amount of time to implement. Additionally, it must be considered that premium hikes temporarily lead to a decrease in disposable income for lower-income groups, potentially having a negative impact on the domestic economy.

└ Q3. What if corporate voluntary Value-up efforts succeed?

[Analysis]: If South Korean companies voluntarily raise their stock prices through strengthened dividend policies, share cancellations, and governance improvements, this could offset the NPS's selling pressure to some extent. In particular, if cash-rich companies adopt aggressive shareholder return policies, the number of investors willing to buy these companies' stocks will increase, improving supply and demand. However, not all companies can achieve an equal level of Value-up. Companies in the growth phase, those with high debt burdens, or cyclical companies may find it difficult to maintain high dividend policies. Therefore, a successful Value-up is more likely to result in differentiated outcomes by company rather than balanced growth across the entire market.

Macro Scenario: Probabilistic Future Trajectories

└ Scenario A (Base Case): Phased Asset Allocation Adjustment and Gradual Market Adaptation (50%)

The NPS phases in its domestic asset weighting adjustments according to its official plan, and the market gradually adapts to these changes. Institutional and foreign funds flow into companies with excellent cash flows, and some companies strengthen their dividend policies. The KOSPI index repeatedly fluctuates within the 5900~6300 range, and performance disparities (dispersion) among individual stocks widen. Volatility remains at a relatively high level.

└ Scenario B (Positive Case): Strengthening of Corporate Value-up and Capital Market Reforms (35%)

Trigger: The government's Corporate Value-up policy yields tangible results, and tax reforms (dividend income tax, inheritance tax, etc.) strengthen incentives for corporate shareholder returns.
Result: Companies voluntarily expand cash returns, and foreign funds begin flowing in earnestly. The NPS's selling volume is sufficiently absorbed, and the KOSPI attempts a re-rating to a P/B above 1.1x. Volatility partially subsides, and the index may show an upward trend.

└ Scenario C (Negative Case): Overlap of Global Shocks and NPS Selling (15%)

Trigger: Massive macro shocks, such as intensifying U.S.-China conflicts, surging global interest rates, or slumping exports, overlap with the timing of the NPS's asset allocation adjustments.
Result: Simultaneous selling by foreigners and the structural selling by the pension fund combine, potentially causing a temporary deterioration in market liquidity. The KOSPI could undergo a sharp correction of 15-20% in a short period, necessitating market stabilization measures by government authorities. However, this can be evaluated as a temporary correction rather than a structural collapse.

Implications from an Investor's Perspective

└ Considerations for Portfolio Rebalancing

Amidst the changing market supply-demand structure, investors can review the following factors:
① [Selection of Cash Flow-Based Companies]: During the NPS's asset allocation adjustment process, companies with excellent dividend yields and share cancellation track records can receive relatively higher investment demand. The stocks of these companies can be considered for maintaining or expanding the domestic asset weighting in a portfolio. However, investors must evaluate the company's long-term competitiveness, not just pursue high dividends.
② [Global Diversification and FX Exposure]: In an environment where KRW exchange rate volatility may increase, some investors can consider diversifying into global assets (U.S. equities, overseas bonds, etc.). This is an approach to capture global growth opportunities while hedging exchange rate risks. However, this must also be determined based on the individual investor's risk tolerance and investment goals.
③ [Company Selection from a Medium-to-Long-Term Perspective]: Rather than reacting sensitively to short-term supply and demand changes, it is important to make investment decisions based on a company's medium-to-long-term competitiveness, industry outlook, and global positioning. The NPS's asset allocation adjustment is only one market variable and does not change the intrinsic value of a company.

└ Risk Management Perspective

Investors can recognize the following risk factors and reflect them in their portfolio management:
① [Supply-Demand Volatility Risk]: Supply and demand changes resulting from the NPS's asset allocation adjustments can cause temporary price fluctuations. To respond to this, it is crucial for individual investors to maintain a long-term investment perspective and not overreact to short-term volatility.
② [Global Macro Risk]: The South Korean stock market is sensitive to global interest rates, exchange rates, and geopolitical risks. These macro factors must be monitored alongside the NPS's asset allocation adjustments.
③ [Industry Differentiation Risk]: Because not all companies can achieve an equal level of Value-up, performance disparities can arise by industry and by company. Diversified investments accounting for this are crucial.

Conclusion

The adjustment of the National Pension Service's domestic asset weighting in 2026 is an inevitable policy change stemming from the macroeconomic reality of an aging population. It is also a natural process reflecting the developmental stage of the South Korean capital market. The fact that the pension fund can no longer be the 'savior' of the market implies that the market must regulate supply and demand through its own mechanisms. In this process, the cash-flow generation capabilities of companies, the capital allocation choices of institutional investors, and the decision-making of retail investors will become even more critical. Investors should perceive the pension fund's selling not as a 'crisis,' but as a process of market structure 'reorganization,' and gradually adjust their portfolios in this changing environment. Companies that do not pay dividends or lack cash-flow generation capabilities will not be entirely forced out. However, they must recognize that voluntary responses—such as business restructuring and redefining growth strategies tailored to the new market environment—will become increasingly vital.

※ Disclaimer

This report does not solicit the purchase or sale of any specific assets (including ETFs, individual stocks, etc.) and has no intention of criticizing the asset allocation policies of the National Pension Service. It is an article of macroeconomic analysis based on demographic data, official announcements from the NPS, and market data. Actual results due to future policy changes, rapid shifts in global macro variables, and voluntary corporate responses may differ from predictions, and the responsibility for all investment decisions lies with the investor. It is recommended to comprehensively consider one's financial situation, risk tolerance, and investment horizon before making investment decisions, and to consult with experts if necessary.

Sources and References

[¹] National Pension Service — 2026 Fund Management Asset Allocation Policy — (Disclosed Jan 2026) — https://www.nps.or.kr

[²] Statistics Korea — 2025 Vital Statistics Survey — (Monthly statistics, updated year-round) — https://kostat.go.kr

[³] National Pension Service — 2025 NPS Investment Management Annual Report — (Disclosed Feb 2026) — https://www.nps.or.kr

[⁴] Korea Capital Market Institute — Analysis of Global Asset Allocation Trends of Domestic Pension Funds and Market Impact — (March 2025) — https://www.kcmi.re.kr

[⁵] Bank of Korea — Financial Institution Asset Statistics and Institutional Investor Asset Status — (Quarterly updates) — https://ecos.bok.or.kr

[⁶] Korea Exchange (KRX) — Institutional Investor Trading Volume and Holding Status Statistics — (Daily/Monthly/Quarterly disclosures) — https://kind.krx.co.kr

[⁷] Financial Supervisory Service — Listed Companies' Institutional Investor Ownership Percentages and Major Shareholder Status — (Quarterly disclosures) — https://www.fss.or.kr

[⁸] Korea Development Institute (KDI) — Research on Population Aging and Pension Fund Sustainability — (Dec 2024) — https://eiec.kdi.re.kr

[⁹] OECD — Korea Pension System Review: Asset Allocation and Sustainability — (Latest 2024 version) — https://www.oecd.org/korea/

[¹⁰] International Monetary Fund (IMF) — Article IV Consultation: Republic of Korea — (Sept 2025) — https://www.imf.org