Before investing in ethereum you should understand its price based on agressive media campaign, advertising to people who not familiar with cryptocurrencies and major stake of pre-mined coins what never reached the exchange. There is barely 100000 eth on exchanges despite ethereum have almost 100 million supply. Still, that doesn't mean ethereum will not go up. There is big money involved and some whale(s) who control like 99% of eth at the moment will try to  increase its capitalization as high as possible.