The OTC Markets website has a profile for GBTC and lists it as alternative filing, which I suppose means the company isn't registered with the SEC.
It actually went public in 2015. Bitcoin was priced for a couple years prior at around $1000, so one tenth of that is $100.
It is actually a subsidiary of another company.
I'd have to examine the last filing Sept. 30 for expenses. The company pays for expenses by selling bitcoin held in the trust.
The Nasdaq's third tier, the AMEX can be just as bad, and last but not least, the OTC, it seems, are financial venues that reward failure.