many people predict that the price of bitcoin will increase at the end of the year so that many people take this opportunity to buy as much bitcoin as possible so they hope that by the end of the year they will be able to get lots of profit
If a significant amount of traders and investors follow that strategy then they are going to make the price to go up as there is an increase in the demand but if anything that growth is only going to be temporal and as soon as people stop investing in the market because they are expecting for the value of bitcoin to go up then it is likely that we are going to return to the current prices.