What are Indices?
Indices are a measure of a section of shares in the stock market. Indices, or indexes, are portfolios of stocks. These stocks are grouped together in accordance with a particular sector or a particular market: the GDAX (or Dax 30), for example consists of 30 major German companies trading on the Frankfurt Stock Exchange. The ND100m contains stocks from the top technology companies in the US.
Indices price movements and volatility are impacted by factors like political events, major factors which affect companies in a particular sector, economic data like employment figures and big changes in the currencies markets