Indices refer to a group of stocks or other financial assets that represent a particular market or sector. They are used to measure the overall performance of a specific market or industry.

Here are a few examples of popular indices used in CFD trading:

1. S&P 500: The S&P 500 is a stock market index that tracks the performance of 500 large-cap companies listed on U.S. stock exchanges. It is widely regarded as a benchmark for the overall health of the U.S. stock market.
2. Dow Jones Industrial Average (DJIA): The DJIA is one of the oldest and most well-known stock market indices. It consists of 30 large, publicly traded companies in the United States, representing various sectors of the economy.
3. FTSE 100: The FTSE 100 is an index of the 100 largest companies listed on the London Stock Exchange. It is considered a key indicator of the performance of the UK stock market.
4. DAX 30: The DAX 30 is a blue-chip stock market index that represents the 30 largest and most liquid companies listed on the Frankfurt Stock Exchange in Germany.
5. Nikkei 225: The Nikkei 225 is a stock market index that tracks the performance of 225 large, publicly traded companies listed on the Tokyo Stock Exchange in Japan.

These indices are just a few examples, and there are many more indices available for CFD trading, each representing different markets, regions, or sectors. Traders often use indices as a way to diversify their portfolios and speculate on the overall performance of specific markets or industries.