Stock CFDs are some of the most popular trading instruments among independent traders. The main reason for this is likely because it allows for trading in stocks with much higher leverage than what has traditionally been available from stock brokers, while also making it extremely easy to profit from falling prices by short-selling stocks.
Regulated forex brokers usually offer a selection of the stocks of some of the most popular US and European companies, including US tech giants like Apple, Amazon, and Facebook. However, some brokers also have much larger selections than that, offering thousands of stocks from all around the world, including many from developing countries.