There are many key markets and indexes upon which investors may focus when measuring investing success. Each composite market and its underlying index has its own character, created in part by the types of stocks that are listed, as well as historical factors. Companies that are listed on various exchanges may change, and the market on which they are traded may also change. Some important indexes are the NASDAQ Composite Index (many key technology-based stocks), Standard and Poor’s 500 Index (includes blue chip stocks and key stocks on different exchanges), and the Russell 2000 Index (small capitalization company stocks often valued below $1 billion).