Index

A list of investments and their prices. For example, the FTSE 100 index is a list of the 100 largest companies whose shares can be bought or sold on the London Stock Exchange.

The weighted value of these shares usually moves up or down throughout a trading day. There are indices for all sorts of sectors, regions and stock exchanges.

Explore the FTSE 100 index

View all Jargon Buster terms

Popular terms