In February, the brothers formed the Winkdex, which will be used to price the value of assets held by the trust.
The crypto-currency hit a record high of $1,242 per coin on Nov. 29, 2013, but the currency has plunged due to pricing and technology issues. Mt Gox, a bitcoin exchange, halted withdrawals in February and subsequently became insolvent. [Winkdex Bitcoin Index Debuts]
The Winkdex quoted Bitcoin at $439.37 at this writing.
ETF Trends editorial team contributed to this post.