That happens every time. Once the hype slows down the price goes down. Worth to mention that there are many whales who participates in ICOs for quick 3-5x profit and sell right after, leaving a huge sell wall. Imagine multiplying millions in a day with 0 effort and they can even re-buy if they want, once the price is low enough for long term profits.
RE: 100K Challenge (Day 010/300) : Crushed by EOS!