Ethereum has fallen by around 13% in a week and gained around 0.53% in the last 24 hours. It is down by around 93% since its all-time high rate, with respect to 17-month-low.

Reasons could be
1. 80,000 ETH were transferred to the Kraken Exchange in two different transactions which might be the holdings of an Initial Coin Offering(ICO) and is wanting to sell for avoiding losses as the price is likely to fall even further down to $60 according to some of the crypto market analysts.

2. Many traders claiming that projects have begun to liquidate their war chests, that are often full of Ether, into fiat, leading to the current collapse of the market, not only ETH.

Ethereum Improvement Proposal (EIP) could see the coin move to a Proof-of-Stake consensus. So, while the impact of ICO selling could persist throughout this bear market when eventually the “panic” would cease. If developments continue and the updates are successfully rolled out, institutional and retail demand from Ethereum could pick up again.