Download Historical Quotes for Hang Seng Index [INDEX,HSI] in a range of formats. The worlds #1 website for end of day & historical stock data wide range of exchanges, data formats, tools and services Main Nav HOME PRODUCTS & SERVICES HOW TO SUPPORT ABOUT MY ACCOUNT. Sub Nav Home Page Download Symbol Lists Quote & Chart Daily Emails Symbol Hang Seng Index advanced index charts by MarketWatch. View real-time HSI index data and compare to other exchanges and stocks. Historical and current end-of-day data provided by FACTSET. All The VIX Index is a calculation designed to produce a measure of constant, 30-day expected volatility of the U.S. stock market, derived from real-time, mid-quote prices of S&P 500® Index (SPX SM) call and put options. On a global basis, it is one of the most recognized measures of volatility -- widely reported by financial media and closely