In the past few years, the market - cap - share structure of the cryptocurrency market has changed. Bitcoin's market - cap share has fluctuated but still remains dominant. However, the market - cap share of some other cryptocurrencies, especially those in the decentralized finance and non - fungible token sectors, has increased. In the future, as new technologies and applications emerge, the market - cap - share structure may continue to change. For example, if blockchain - based supply - chain management cryptocurrencies gain more adoption, their market - cap shares may increase.