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

How is Quantum Market Cap calculated?

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

Quantum Market Capitalization in USD = Number of QAU in supply X Price of one Quantum in USD

Since the price of Quantum 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 Quantum or predict the price of Quantum.