Hang Seng Stock Index - 29 Year Graph (Hong Kong) with annual returns table. Includes month, year, 5 year and 10 year historical performance ranking relative to global, foreign, U.S. Small Cap, Medium Cap and Large Cap stock market indexes. Explore the complete Hang Seng historical data , offering detailed insights into daily prices, including open, high, low, volume, and percentage changes. Use this data to analyze long-term market... Download Hang Seng Index stock data: historical HSI stock prices from MarketWatch. Get historical data for the HANG SENG INDEX (^HSI) on Yahoo Finance. View and download daily, weekly or monthly data to help with your investment decisions.