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

How is GridPay Market Cap calculated?

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

GridPay Market Capitalization in USD = Number of GRID* in supply X Price of one GridPay in USD

Since the price of GridPay 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 GridPay or predict the price of GridPay.