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

How is OKCash Market Cap calculated?

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

OKCash Market Capitalization in USD = Number of OK in supply X Price of one OKCash in USD

Since the price of OKCash 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 OKCash or predict the price of OKCash.