ETH/USD and BTC/USD are currently inside similar channels on the 1 day chart, almost freefalling down the channel at times.
The edges of the channel have been prime shorting zones for approximately the past 6 months, the Fibonacci lines been good to take profits & reset the trade.
Ethereum could be back at the 10% of Bitcoin mark in this case.
If these parallel channels are not broken, we could see some really low lows and a period of accumulation (this could be the time to start getting in for long-term holds) and eventually start seeing higher highs on the way back up in the 2nd half of 2019.