CAC 40 Tech Info EN

The CAC 40® is a free float market capitalisation weighted index that reflects the performance of the 40 largest and most actively traded shares listed on Euronext Paris, and is the most widely used indicator of the Paris stock market. The index serves as an underlying for structured products, funds, exchange traded funds, options and futures.

Stocks are screened to ensure liquidity, as well as free float weighted to ensure that the index is investable.

The index rules, which are available on our website, are overseen by the independent Conseil Scientifique that acts as Supervisor. All our rulebooks can be found at:

CAC 40 Specifications