Here's Some Key Things To Know About December Bitcoin Prices.

Sunday was another down day for most of the top digital currencies. This is especially true of Bitcoin, which once more fell below the $3,900 threshold, even if did not fall much. Losing less than 1%, Bitcoin fell to $3,880. It is down considerably from its week high of $4,271, which it achieved on Monday. It is also down from its price at the start of the week, which was $4,011. On the other hand, it is still well above its week low of $3,642, which happened on Friday. Ripple, which is the second largest digital currency by market value, held its $0.399 price on Sunday. While this price is considerably lower than the currency's week high of $0.446, which it achieved on Monday, it is above its price at the beginning of the week, which was $0.367. Ethereum is just behind Ripple in terms of market capitalization and has been gaining on it. It is currently trading at $139 after starting the day at $136. Like Bitcoin and Ripple, the currency is below its week high but higher than its price at the beginning of the week. It started the week at $129 and on Monday reached a high of $157. Ethereum was not the only cryptocurrency among the top 20 that saw gains on Sunday. Other gainers included Dash and EOS (both at almost 3%), Cardano (1%) and NEM (0.75%). NEO rose the most percentage-wise, rising 3.5% for the day. The total market value of all cryptocurrencies stands right now at around $130 billion. This week, it fell $3 billion, but it is still $10 billion above its week low of $120 billion. Though it is also $17 billion off its week high of $147 billion, which it reached on Monday. In other cryptocurrency news, investors of NVidia have filed a class action lawsuit against the company in response to the stock losing more than 50% of its value this year. The company, which is currently the worst performer of the year in the S&P 500, suffered significant losses due to lowered demand for GPUs used in cryptocurrency mining rigs.