I'm looking at this chart and i don't rely understand why the USD price is at times lower and at times higher then the market-cap.
I would assume they are supposed to go in parallel since they are in direct proportion by the formula : circulating supply * price
- but that is obviously not the case.
I assuming circulating supply(around 17 mil) only increases since more coins are being mined.
How can the market cap be lower, (or the same) when price goes up? Why is not always on top of the price line?
Also what is the interpretation in a crossing event like in the picture? Can this crossing of chart-lines be considered a signal to buy or sell bitcoin?