Qubes

NASDAQ 100 Index

A stock index of the 100 largest companies by market capitalization traded on NASDAQ. The NASDAQ 100 Index includes publicly-traded companies from most sectors in the global economy, the major exception being financial services. Various exchange-traded funds follow the NASDAQ 100 Index. Its symbol on the NASDAQ ticker is QQQ. It is informally called the Cubes.

Qubes.

The Nasdaq Stock Market sells shares in a unit investment trust (UIT) that tracks the Nasdaq 100 Stock Index.

This market capitalization weighted index includes the largest 100 companies trading on the Nasdaq and is adjusted quarterly to keep it focused on the strongest performers.

The name Qubes comes from the UIT's trading symbol: QQQQ.

Qubes resemble Standard & Poor's Depositary Receipts (SPDR), which reflect the performance of the Standard & Poor's 500 Index (S&P 500) and the DIAMOND (DIA), which tracks the Dow Jones Industrial Average (DJIA).

These investments are also described as exchange traded funds.