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

How is ChainLink Market Cap calculated?

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

ChainLink Market Capitalization in USD = Number of LINK in supply X Price of one ChainLink in USD

Since the price of ChainLink 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 ChainLink or predict the price of ChainLink.