I made a couple small edits to the prior report which now reads as follows here: https://www.virtueofselfishinvesting.com/reports/view/special-report-on-bitcoin-etn-gbtc-10-30-17

where I included this add-on:

Keep in mind bitcoin is highly volatile so understand the risks before investing any money. Bitcoin has been known to correct as much as 94% (it's done this twice since 2010) but still has managed to be worth over $6000 today, up from roughly 0.001 in 2009, or a 6-million fold gain. Nevertheless, don't let the mind-boggling large numbers lull you into a sense of greed. Bitcoin is more volatile than any stock so always know your exit points!
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We may provide members with some guidance in terms of how GBTC trades as it tends to overshoot as it did in May and in August. One can sell into such climax moves.

In answer to some questions, GBTC can be bought on any discount broker platform as it trades on OTC.