The NASDAQ Biotechnology Index is a made up of securities of NASDAQ-listed companies classified according to the Industry Classification Benchmark as either Biotechnology or Pharmaceuticals.
In order to remain included within the index, the components must meet the following criteria:
This list of companies is current as of 10 June 2016.
http://www.zonebourse.com/NEOVACS-6076410/graphiques/
In November 2011 the following were added:
The following were removed from the index:
This index is tracked by an exchange-traded fund, iShares Nasdaq Biotechnology (NASDAQ: IBB).