coinmarketcap is meaningless
i can create a altcoin with 100 trillion pre-mined coins
sell just 0.01coin for $0.01
and create a market cap of $100trillion.. causing bitcoin to be less than 1% of the entire crypto market
all for the low low price of one cent
coinmarketcap is meaningless
What is meaningful for you? AFAIK that's the way the stock market operates as well. In times of low volume, such as August, low trading volume can move a share price more in percentage terms than in times of normal or high trading volume. Market cap may not be a perfect measure but if it is widely used around the world there is a reason.
What is the metric you think we should look at?