Is there any correlation btw Ethereum market cap and Ethereum total value secured…

Hi all, this is a dumb question from a beginner.

I can't figure out if there is any correlation between the two: market cap and total value secured. Actually the second almost double the first. Is this proportion going to be volatile or almost fixed?

I've noted from ultrasoundmoney website that market cap almost equal the ETH value secured but then there are the erc20 value secured and the nft value secured