Tencent and Alibaba Lead Hong Kong Stock Buyback Wave: Can It Support the Hang Seng Index? In-Depth Analysis

Tencent and Alibaba Lead the Hong Kong Stock Buyback Wave: Can It Support the Hang Seng Index?

Since the start of 2025, the Hong Kong stock market has faced dual pressures from external macroeconomic uncertainty and tight domestic liquidity. Against this backdrop, heavyweight stocks represented by Tencent Holdings (00700.HK) and Alibaba Group (09988.HK) have sparked a large-scale share buyback wave, sparking widespread discussion on whether these buybacks can provide effective support for the Hang Seng Index. This article provides an in-depth analysis from the perspectives of buyback scale, capital flows, and market sentiment.

1. Buyback Scale Hits Record High

According to public data from the Hong Kong Stock Exchange, in the first four months of 2025, the cumulative buyback amount of Hong Kong-listed companies exceeded HKD 100 billion, far surpassing the same period last year. Among them, Tencent Holdings topped the list with buybacks exceeding HKD 40 billion, followed closely by Alibaba with buybacks exceeding HKD 20 billion. In addition, financial blue chips such as HSBC Holdings and AIA Group have also increased their buyback efforts. This phenomenon is interpreted by the market as a positive signal that listed companies believe their valuations are undervalued, while also providing direct buying support for the Hang Seng Index.

2. The Logic of Buybacks Supporting the Hang Seng Index

As a market-capitalization-weighted index, the Hang Seng Index's heavyweights have a significant "anchoring effect" through buyback activities. For example, Tencent accounts for about 8% of the Hang Seng Index's weight, and Alibaba accounts for about 5%. When these companies continuously repurchase shares in the open market, it not only reduces the number of shares in circulation and boosts earnings per share, but also sends a signal to investors on an emotional level that "management is confident in the company's long-term value." According to market analysts, during an index decline, large-scale buybacks can effectively slow down selling pressure and even trigger short covering, thus forming a temporary bottom.

However, the supporting effect of buybacks is not unlimited. Historically, there was also a large-scale buyback wave in Hong Kong stocks in 2022, but the Hang Seng Index still recorded an annual decline amid the Fed's aggressive rate hikes and geopolitical risks. This suggests that buybacks are more of a "cushion" than a "stimulus." The core contradictions currently facing the Hang Seng Index are: global capital flows, the slope of China's economic recovery, and the evolution of Sino-US relations. If these macro variables continue to deteriorate, buyback funds may only slow down the pace of decline, but cannot reverse the trend.

3. Market Sentiment and Capital Game

From a market sentiment perspective, the buyback wave has to some extent boosted the confidence of retail and institutional investors. According to a survey by a certain brokerage, over 60% of surveyed investors believe that "buybacks are a positive signal" and tend to increase positions during periods of concentrated buybacks. On the other hand, net inflows of southbound capital (via Stock Connect) in the first quarter of 2025 narrowed year-on-year, indicating a more cautious attitude of mainland capital towards Hong Kong stocks. This divergence of "domestic capital waiting and foreign capital returning" tests the marginal utility of buybacks.

It is worth noting that the phenomenon of some small and mid-cap companies following the buyback trend has also sparked controversy. Some analysts point out that if a company's fundamentals are poor, buybacks may become a tool for "market value management" and even drain cash flow. In contrast, giants like Tencent and Alibaba have ample cash reserves, making their buybacks more sustainable. According to financial reports, Tencent held over RMB 300 billion in cash and equivalents as of the end of 2024, providing a solid foundation for its large-scale buybacks.

4. Future Outlook: Sufficient for Support, Insufficient for Reversal

In summary, the buyback wave led by Tencent and Alibaba provides important bottom support for the Hang Seng Index, especially when the index breaks through key psychological levels (such as 18,000 points), buyback forces often trigger technical rebounds. However, to achieve a trend reversal, catalysts such as improvements in macroeconomic fundamentals, upward revisions in corporate earnings expectations, and easing of external risks are still needed. In the short term, the Hang Seng Index is likely to remain range-bound, with buybacks acting as a market "safety net," but investors should not rely too heavily on a single factor.

As a strategy report from an international investment bank states: "Buybacks are a company's vote on its own value, but the market is ultimately determined by supply and demand." Against the backdrop of fundamentally unchanged liquidity in Hong Kong stocks, the supporting effect of the buyback wave is commendable, but investors still need to remain rational and pay attention to broader economic indicators and policy trends.