I was observing the historical charts of Bitvest funds and I noticed strange correlation between "Investor Profit" chart and "Total Invested" chart. Example is shown on image bellow. This is a screenshot from today. On the left side there are charts for Bitcoin and on the right side for Ethers.



See the spike on Bitcoin charts? I'm reading profit chart as someone lost some big bets and investor's profit went up, but then he won a bet and investor's profit dropped back. Ok, but why does "Total Invested" look the same? Why investments had a spike at the same time? Someone please explain.