People have often compared crypto to stocks since owning a coin, represents your "share" of the decentralized blockchain network. Exchanges act as brokers in a similar fashion to traditional stocks. While stocks are fiercely regulated, crypto is the "wild west". Cryptocurrencies are extremely volatile, while stocks are much more stable. Despite crypto/Blockchain tech's popularity, stocks are still preferred by mainstream investors and traders alike.
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Nope, that is not the case. Owning a bitcoin is more similar to owning some gold or any other commodity. Bitcoin itself does not produce cash flow and does not give you any controlling right on the network or the mining facilities. You do have a stake, but there is not a lot you can do with it other than selling it if you are not happy.
A complete investor is someone who can recognise and use different models that give profits, and that includes knowing about the crypto market, the stock market, real state and many other assets and specially about companies.