Hang Seng
Hang Seng — Hong Kong Stock Exchange (HKEX)
Benchmark index tracking the leading companies listed on Hong Kong Stock Exchange (HKEX).
About the Hang Seng
Hang Seng is the benchmark stock index of Hong Kong Stock Exchange (HKEX). It is free-float weighted: each company's weight depends on the share of its capital actually available for trading.
Characteristics
Price history
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Historical performance
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Calculated live from Yahoo Finance closing prices (unofficial public proxy) — may be temporarily unavailable or delayed.
Track Hang Seng in your portfolio
Add the Hang Seng (symbol ^HSI) to your virtual portfolio to track its allocation, performance and your simulated gains/losses alongside your other positions.
Add Hang Seng to my portfolioIndex composition
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Approximate ranking by weight, for educational purposes — an 8% single-stock cap is applied to prevent any one company from dominating the index. Official composition on hsi.com.hk.
What is the Hang Seng?
The Hang Seng Index (HSI) is the benchmark index of the Hong Kong Stock Exchange, first published on November 24, 1969 with a history backdated to July 31, 1964 (base of 100 points). Managed by Hang Seng Indexes Company, it tracks around 90 of the largest companies listed on the HKEX Main Board, reviewed quarterly.
How can you invest in the Hang Seng?
The most common route is an ETF tracking the index, widely available on international platforms, or Hang Seng futures for more experienced investors. There is also a related index, the Hang Seng TECH, focused on technology names like Tencent, Alibaba, and Meituan.
What sectors dominate the Hang Seng?
Finance and technology together account for more than half the index's weight, led by Tencent, HSBC, and Alibaba. The index serves as a barometer both for Hong Kong's own economy and, through the technology names and mainland banks listed there, for the broader Chinese economy — which makes it especially sensitive to regulatory and macroeconomic announcements out of Beijing.
What are the risks and limitations of the Hang Seng?
The index carries a dual exposure: to the Chinese economy via its banks and mainland technology stocks, and to geopolitical tensions between China and the United States, which feed directly through to the tech stocks listed in Hong Kong. Since the Hong Kong dollar is pegged to the U.S. dollar, the index is also mechanically sensitive to Federal Reserve policy, independent of conditions in Hong Kong or mainland China.
How has the Hang Seng performed during past crises?
The 1997-1998 Asian financial crisis was particularly brutal: the index lost more than 60% between its August 1997 peak and its October 1998 low, with a single session at -13.7% on October 23, 1997 during the speculative attack on the Hong Kong dollar. In 2008 it fell about 48% for the year. More recently, in April 2025, the announcement of U.S. tariffs triggered a 13.2% single-day drop, the sharpest since 1997 — a reminder that the index remains one of the most sensitive to global geopolitical and trade shocks.
Price and chart data fetched live from Yahoo Finance via an unofficial public proxy: it may be delayed, temporarily unavailable or inaccurate. Composition and weightings are provided for educational purposes and are not a substitute for an official source. Nothing on this page constitutes investment advice.