Altcoin is the alternative coin and it also called as cryptocurrency (other than Bitcoin). All most popular altcoin or cryptocurrency used the same fundamentals of building blocks asn Bitcoin does. Different companies use the same technology which Btcoin use in some ways to achieve different goals.
The cryptocurrency market is currently worth about $350 billion USD. In comparison to more traditional markets, this doesn’t look like much. Gold, for example, which experts commonly compare Bitcoin to, is worth close to $8 trillion USD. However, this is only one perspective. A different perspective is the fact that over $1.5B in investor funds