This research identifies changes in the price, return, and trading volume of Bitcoin in the market in taking investment decisions in Indonesia. This research uses event study analysis conducted on the price, return, and volume of bitcoin during New Year. Observations were made before and after New Year, with observational data on prices, daily returns and volumes carried out for 90 days, 30 days and 7 days from 2014-2018. The results of the research conducted show differences in prices before and after New Year, indifference in returns before and after New Year, and the last is there were difference in volume before and after New Year.