You can check out above graph to see how the market cap of Zero has changed over time. The market cap value depends on the value of Zero on that particular day and number of Zero in supply at that day.

How is Zero Market Cap calculated?

The Zero Market cap is calculated using a simple formula. You can find it below:

Zero Market Capitalization in USD = Number of ZER in supply X Price of one Zero in USD

Since the price of Zero is highly volatile you can see the market cap going up and down a lot. Sometimes price and market cap are not linear to each other due to increase in the supply of coins in the market and stable or decrease in the price of the coin. So you can say that it's not simple to predict the market cap of Zero or predict the price of Zero.