What do you expect? It was a sudden surge in price without any news whatsoever specially in altcoin markets. And for those who have bought ETH at its lowest is logically booking the profits, and it's nothing wrong with them.
However, the price is still cheap, so those who sold and take their profits might invest again, not necessarily on ETH though but on other coins as well. So it is still a win-win for the market.
Chances are big that those who sell their assets will reinvest back, some might think that there would be another dumped and they can wait for that and reinvest their earnings, on this market type where there's no certain position that can assure you, it's need to have a good understanding and knowledge to keep following the possible outcome, best to be more updated and trust your owned observations. However, the price is still cheap, so those who sold and take their profits might invest again, not necessarily on ETH though but on other coins as well. So it is still a win-win for the market.
