@geekgirl, thanks for your comment.
Yes, I believe that the tax harvesting may have been a factor, it’s impossible to know for sure how much.
Last time we had days of sideways the volume just dried up and we snapped down 35%, ouch! Volume is key so i`m keeping a close eye on it.
I am a huge BTC bull for the long term but must admit that another snap down the the 2K area looks very possible, I would love to be wrong :-)