Pop Mart, JD Logistics, and China Telecom will join the Hang Seng Index after the market closes on September 5, raising the number of constituents from 85 to 88.

No companies will be removed in this quarterly review, Hang Seng Indexes said.

Pop Mart will also be added to the Hang Seng China Enterprises Index, while no changes are planned for the Hang Seng Tech Index.

The Hang Seng Index has climbed 25% year-on-year, making it Asia’s second-best performing major index in 2025.

Tencent remains the largest constituent with an 8.3% weighting, followed by HSBC and Alibaba.

Separately, Hang Lung Properties, AIA Group, and Sunny Optical will exit the Hang Seng Corporate Sustainability Index. Sino Land, CK Infrastructure, and AAC Technologies will take their places.

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🔗 Source: South China Morning Post

🧠 Food for thought

1️⃣ Index inclusion historically drives immediate stock price gains

The three new additions to the Hang Seng Index are likely to see further stock price appreciation based on historical patterns from similar index changes.

When ZTO Express and Midea Group were added to the Hang Seng Index in the previous quarterly review in May, their stocks gained 3.3% and 4% respectively since the announcement1.

This boost typically occurs because passive fund managers must purchase these stocks to match the index weighting, creating automatic buying pressure regardless of fundamental analysis.

The effect is particularly pronounced for the Hang Seng Index since it represents nearly 58% of the total value of companies listed on the Hong Kong Stock Exchange, meaning substantial passive capital flows track its composition2.

2️⃣ Hong Kong’s market outperformance creates favorable timing for index expansion

The addition of three new constituents comes as Hong Kong stocks experience their strongest year in recent memory, with the Hang Seng Index rising 25% in 2024 to become Asia’s second-best performer after South Korea’s Kospi1.

This outperformance stems from multiple factors including de-escalation of China-US trade tensions and expectations of US Federal Reserve rate cuts, creating an ideal environment for expanding the index’s representation1.

The timing allows the index compiler to capture companies at attractive valuations, with the Hong Kong benchmark now trading at just 11.7 times earnings—the cheapest among major global markets except Brazil1.

Pop Mart’s inclusion is particularly significant given its revenue quadrupled to 13.88 billion yuan in the first half of 2024, with founder Wang Ning projecting the company could double 2025 revenue to 30 billion yuan1.

This expansion to 88 constituents represents steady progress toward the compiler’s goal of reaching 100 constituents, potentially making the index an even more comprehensive representation of Hong Kong’s equity market.

Recent Pop Mart developments

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