Hang Seng Index Breaks Below 20,000: Deep Dive into Hong Kong Stock Liquidity Crisis

Hang Seng Index Breaks Below 20,000: Is a Hong Kong Stock Liquidity Crisis Emerging?

Recently, the Hang Seng Index has fallen below the 20,000-point psychological threshold under multiple pressures, sparking widespread debate over whether Hong Kong stock liquidity has reached a tipping point. As a key global financial hub, the performance of Hong Kong stocks not only reflects local economic expectations but is also closely tied to global capital flows, geopolitical risks, and the pace of mainland China's economic recovery. This article examines the current liquidity situation from three dimensions: the drivers behind the Hang Seng's decline, changes in HKEX trading volumes, and foreign capital flows.

1. Core Drivers of the Hang Seng's Decline

The Hang Seng's breach of 20,000 points is not the result of a single event but a confluence of multiple negative factors. First, the global macro environment remains tight. The Federal Reserve maintained high interest rates in 2024, and despite market expectations of rate cuts within the year, the actual pace has been slower than anticipated, leading to a stronger US dollar and pressure on non-US currencies. Under Hong Kong's linked exchange rate system pegged to the US dollar, Hong Kong dollar interest rates have passively followed US rate hikes, increasing financing costs for local businesses and dampening investment and consumption.

Second, the pace of mainland China's economic recovery has slowed. As a key component of Hong Kong stocks' fundamentals, the adjustment in mainland China's real estate sector is not yet complete, with debt issues at some developers continuing to fester, dragging down the performance of financial sectors such as banking and insurance. Meanwhile, while consumption and export data have shown some improvement, market doubts about the sustainability of structural transformation have led to a revaluation of Chinese stocks.

Furthermore, geopolitical risks have escalated. US-China technology competition, recurring trade frictions, and changes in Hong Kong's political environment have all reduced foreign investors' risk appetite for Hong Kong stocks. In particular, adjustments to index component weights by some international index providers have exacerbated capital outflows.

2. Shrinking Trading Volumes: A Signal of Liquidity Crisis?

The average daily trading volume on HKEX is a key indicator of market liquidity. According to HKEX public data, the average daily turnover of Hong Kong stocks in 2024 has declined significantly compared to the same period in 2023, with some trading days falling below HKD 100 billion, far below the peak of over HKD 200 billion in 2021. The contraction in trading volume has directly led to reduced market depth, wider bid-ask spreads, and higher impact costs for large trades.

From a capital structure perspective, retail investor participation has decreased, and institutional investors have also turned cautious. According to market sources, some hedge funds have reduced their Hong Kong stock positions, shifting to more liquid US stocks or Japanese stocks. Additionally, the Hong Kong IPO market has cooled, with new share fundraising in the first half of 2024 falling sharply year-on-year, reflecting a dual downturn in corporate financing willingness and investor subscription enthusiasm.

However, labeling the current situation as a "liquidity crisis" may be premature. As an international exchange, HKEX has robust settlement and risk management mechanisms. Historically, Hong Kong stocks experienced sharp liquidity drops during the 1998 Asian financial crisis, the 2008 global financial tsunami, and the 2020 pandemic shock, but each time recovered through policy intervention and market self-correction. Currently, the Hong Kong Monetary Authority and the Securities and Futures Commission have repeatedly stated they will closely monitor the market and provide liquidity support if necessary.

3. Foreign Capital Flows: Trend Exit or Short-Term Adjustment?

Foreign capital flows are another important dimension for assessing Hong Kong stock liquidity. According to EPFR Global data, net selling of Hong Kong stocks by foreign investors via the Shanghai-Hong Kong and Shenzhen-Hong Kong Stock Connects hit a multi-year high in the second quarter of 2024. Among them, European and US funds saw significant reductions, while funds from emerging markets such as the Middle East and Southeast Asia showed net inflows, indicating a regional divergence in capital structure.

Reasons for foreign capital outflows, beyond the macro and geopolitical factors mentioned above, also relate to the restructuring of Hong Kong stock valuations. In the past, Hong Kong stocks attracted value investors with low valuations and high dividends. However, in recent years, with the deepening of the A-share registration-based IPO system and improved liquidity on the STAR Market, some funds have shifted to A-shares, particularly in the tech and new energy sectors. Additionally, many mainland companies listed in Hong Kong face downward earnings revisions, further diminishing their appeal.

Nevertheless, some institutions believe the current foreign outflows are more tactical adjustments than strategic retreats. Investment banks such as Goldman Sachs and Morgan Stanley have noted in recent reports that Hong Kong stock valuations are at historical lows, with the Hang Seng's P/E ratio falling below 10 and its P/B ratio near 1, offering long-term value. Once the Fed begins its rate-cutting cycle, global capital may flow back to emerging markets, benefiting Hong Kong stocks.

4. Has Liquidity Reached a Critical Point?

Determining whether liquidity has reached a critical point requires monitoring three core indicators: first, whether interbank lending rates spike abnormally; second, whether the Hong Kong dollar touches the weak-side convertibility undertaking; and third, whether there are large-scale defaults in the derivatives market. Currently, the Hong Kong dollar exchange rate remains stable in the 7.82-7.85 range, not triggering the 7.85 weak-side guarantee; interbank offered rates (HIBOR), while elevated, have not seen panic surges; and HKEX's futures and options markets are settling normally, with no systemic risk events.

Therefore, current Hong Kong stock liquidity is closer to "tight" rather than a "crisis." What the market lacks is confidence, not capital. If mainland China introduces stronger economic stimulus measures or if US-China relations show signs of easing, the Hang Seng could rebound after being oversold. However, if the external environment continues to deteriorate, it is not impossible for the Hang Seng to test 18,000 points or even lower.

Overall, Hong Kong stocks are undergoing an adjustment driven by macro factors, policy, and confidence. Investors should remain cautious but not overly pessimistic. Historical experience shows that the most liquidity-tight moments are often opportune times for long-term positioning. For regulators, timely measures such as reducing transaction costs and optimizing listing mechanisms could help boost market confidence and prevent liquidity risks from turning into systemic risks.