I am not seeing any stability of bitcoin rather a bearish market of it. This I think is normal, last year this was also felt. Plus, we had been hearing news about the government's action against bitcoin so this factor would be affecting.
I cannot also say that 2018 price for Bitcoin would be stable considering we are at the first month of the year maybe the thread starter want to point out the consolidation of bitcoin at 10k - 11k$. since we are in bearish expect more up and down in bitcoin price and stability may far at this time.
Yeah we are in the first month of the year then if you look up the chart of price movement compared last year or the other year are the same in this year. Bitcoin was dumping on this month or first quarter of the year and it is bouncing back again around last quarter of the year like what happen last year. And other factor of being stable of price now that was some of country are keep banning bitcoin and it is effect the demand of bitcoin and also the price. So, if you hold some bitcoin may i suggest you that hold as you can.