Question: why is bitcoin price always up and down?......
Data Coindesk showed, bitcoin prices had dropped to levels below 12,000 US dollars for the first time since December 5, 2017. Bitcoin prices had touched the level of 11,685.24 US dollars or equivalent about Rp 156,579 million.
Posted on What - Q&A App on the STEEM Blockchain
Since Bitcoin is not really used as it was intended (a digital currency) yet, then it's price is driven by traders more than anyone else... traders buy and sell constantly to try and make money, or reduce their risk. This is why the price moves around so much...