Bitcoin tied to the defunct Silk Road marketplace moved again after more than a decade of silence, raising new questions about who controls the coins and what the latest activity means for the market. Blockchain data shows that 176 transfers were executed in the past 24 hours from a cluster of long-dormant Silk Road–linked wallets,...

In brief SpaceX move around $94 million worth of Bitcoin on Wednesday. The move is the latest in a string of similarly sized transfers as the firm reportedly prepares for a potentially record-breaking IPO. Elon Musk's company holds about $765 million worth of Bitcoin. Privately held aerospace company SpaceX moved more than $94 million in...

Cheng Xin | Getty Images A newly proposed exchange-traded fund would offer exposure to bitcoin, much like other popular ETFs tracking the world's oldest cryptocurrency. But, there's a twist: The fund would trade bitcoin-linked assets while Wall Street sleeps.  The Nicholas Bitcoin and Treasuries AfterDark ETF aims to purchase bitcoin-linked financial instruments after the U.S....