Lot of smart folks are repeating this :
Big folks are buying up BTC right now in anticipation of Futures trading starting this Sunday ( Dec 10). This could perhaps be driving the price up along with FOMO buyers who see the price going up and up and rush to buy. Then the biggies will be shorting BTC big time and create a FUD and drive the price down by year end and settle their futures contracts in Jan and make both fiat and BTC profits!
Stay safe and stay smart as there is a high chance of noobs ( that includes me as well) getting REKT easily in this. If you think you can ride the way and get profits by timing buy and sell orders correctly then good luck to you. HODLing seems to be a better bet to me!