Yesterday I was hooked into the surge of ETH, definitely invested some into it, but I made the following observation
1. People around start to say 'Moon!!' before the rise
2. Merkle start posting the reasons why ETH rise so much
3. Bid walls are established
4. Price increasing with decreasing volume
I made some profit and cashed out as I was suspicious that this kind of rise is driven by some big whales, which is classic that they enter, fuel the market and dump
Just stating my observation and hope it could be useful somehow for ones' trading decision