Ethereum is the best partner of bitcoin, during 2017 ethereum prices were around 5% of the price of bitcoin. when the bitcoin price is $ 5600 then the ethereum price is $ 280
But why since 2018 until now when bitcoin has reached $ 11 707, ethereum is still $ 227. The ethereum price should be $ 585.
What happened
if bitcoin price is $ 20 000 then ethereum price is only $ 600 
we cannot use such comparisons to judge the price of a currency, the problem is the attention of people, and at the moment people are most interested in BTC, they put money into Buy more BTC than buy ETH or other altcoins.But why since 2018 until now when bitcoin has reached $ 11 707, ethereum is still $ 227. The ethereum price should be $ 585.
What happened
if bitcoin price is $ 20 000 then ethereum price is only $ 600 Agree, investor attention is currently focused on bitcoin and this is what causes bitcoin prices to rise above $ 10k. In addition, the fall in prices does not only occur in ethereum but almost all altcoins so I don't think we need to panic with the current ethereum price conditions.