The Nasdaq is a US stock market index that brings together the main listed companies in the technology sector.
Nasdaq is the acronym for National Association of Securities Dealers Automated Quotation and it lists companies in telecommunications, biotechnology, IT, fintech, etc. Within the Nasdaq there are indexes such as the Nasdaq 100, which includes the 100 companies with the highest turnover, or the Nasdaq Composite, which includes all Nasdaq companies.