Pic : https://pixabay.com/photos/stock-trading-monitor-business-1863880/

"Marketcap" is a stock exchange term, but it can also be used to measure the performance of a cryptocurrency coin.
How to count marketcap? Here is the formula

Marketcap

Market Cap (USD) = Circulating Supply (Coins / Tokens) * Price (USD per Coin / Token)
Hive Marketcap = 430,181,227 x $0.493059
Hive marketcap = $212,104,524

This is my observation. I admit that my analysis is not all true, but I hope it will help you when you want to invest in cryptocurrency projects.
Why is cryptocurrency so volatile? It is because the marketcap is still low enough so that the price can be manipulated by the developer or groups of traders.

Trading Volume

Before you buy cryptocurrency in the market, you should look at the trading volume. There will always be data on trading volume on the trading platform. A cryptocurrency that is listed on fewer exchanges is easier to manipulate. You have higher risks when you buy tokens or coins if the coins are listed on one exchange.

Price

You should also look at the history of the price of the token or coin. It is easy to track the price movement. You will find the peak and the bottom. You will understand where your position is if you buy the token at the right time. You should be curious to the change of the price in a short period of time. The change could be a price manipulation by the developer of pump or dump groups. That is why large marketcap is more difficult to be manipulated. Investing in large marketcap coins has lower risks but lower profits.
Do you do your own research before investing in coins or tokens?
_{Source : https://coinguides.org/market-cap-calculator/
https://www.investopedia.com/ask/answers/032615/how-do-risks-large-cap-stocks-differ-risks-small-cap-stocks.asp}