The NASDAQ Biotechnology Index is a stock market index made up of securities of NASDAQ-listed companies classified according to the Industry Classification Benchmark as either the Biotechnology or the Pharmaceutical industry.
[1] A list of the 225 components of the index is published online.
In order to remain included within the index, the components must meet the following criteria: This index is tracked by several exchange-traded funds, the most liquid of which is the iShares Nasdaq Biotechnology (Nasdaq: IBB).
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