volatility in Bitcoin prices continued on Friday, with the value of the cryptocurrency or digital currency falling below $13,000 at day's low on Bitstamp, a cryptocurrency exchange based in Luxembourg. Bitcoin prices have swung wildly this week. From a record high of $19,666, hit on Sunday, bitcoin prices fell over 36 per cent, losing more than one-third of its value, to hit $12,560 at day's low. Despite the sharp fall this week, Bitcoin's price has jumped nearly 13 times this year, leading to some regulators caution the public dealing with the cryptocurrency. At 2:13 pm, Bitcoin was trading at $13,448 on Bitstamp, down around 14 per cent.