Bitcoin bull run is currently continuing to move, usually before Christmas and New Year there must be a break, when the whale wants a short holiday like in December 2017, when early 2018 bitcoin experienced a decline, but for 2020 nobody knows, because of bitcoin dominate the market
It is really difficult for us to make an exact statement when the bulls will stop. Because Bitcoin is so unpredictable. If you invest in it I think you need to be mentally prepared to make a judgment about its price increase. you shouldn't be too greedy. 