http://www.newsweek.com/elon-musk-bitcoin-dogecoin-cryptocurrency-hodl-1586194

Tesla CEO Elon Musk sent out a cryptic signal about cryptocurrencies with a tweet that triggered speculation about which coin he thinks will be the biggest.

The cryptocurrency market has experienced significant fluctuations recently. One cause of the volatility is U.S. President Joe Biden looking to increase capital gains tax for the wealthy.