What should I know as a Biotech stocks trader in Nasdaq?  Part 1

What should I know as a Biotech stocks trader in Nasdaq?  Part 1, Bio Data Technology: Bioinformatics and Biotechnology directory

Who owns Nasdaq?
Investor AB is the owner of Nasdaq market
There website is : https://www.investorab.com/

What is Dow Jones vs Nasdaq?
The Nasdaq Composite, S&P 500, and DJIA (or Dow) are three important indexes that are used to measure market performance. The Nasdaq Composite and S&P 500 cover more sectors and more stocks in their portfolio, while the Dow is a blue-chip index for 30 stocks.

What’s the difference between S&P 500 and Nasdaq?
The S&P 500 tends to be broader, hoping to have a bigger representation of companies from various sectors and industry groups. And the Nasdaq composite includes only stocks that are traded on the Nasdaq market. … The S&P 500 tends to more closely follow the entire market.

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