The top 30 companies by market capitalization on January 1st, 2021.

Note that the valuations displayed in this video are derived from each company's market capitalization, which is based on the current market price of its shares. Although this is good general measurement of value, it is prone to rapid fluctuations. Tesla, for example, is now "worth" $100b more just a week after recording this.



If you are interested in exploring these concepts further, look into Enterprise Value, which is a more comprehensive approach including a company's debt and cash. It will also lead you to other methods of valuation.