From Traderpedia

Definition: An index of all stocks listed on the NASDAQ.

The Nasdaq Composite Index is one of the best known technical indices in the world. Sometimes referred to as the "Comp", it contains over 4000 issues.

[edit] History

The Index was born in July 1984 at a base level of 100.

[edit] Related Indices

Another Nasdaq related index is the Phillips Semi-Conductor Index, also known as the SOX. This is highly regarded as a useful indicator of the overall market.