When Fidelity blocked dark companies I started looking into other brokerages to move my accounts then OptionsHouse really pushed up the priority. In the end I contacted every online broker I could find. I talked with 40 brokerages and only 2 said they would take my accounts in transfer. A number of brokerages would let me trade the stocks I want but almost none would take my stocks in an account transfer. Still I gathered information from each broker on how they treat dark stocks. This post gets into the details of the OTC Markets stop designation list that influences brokerages. A table is provided to summarize all the info I gathered from the brokerages.

http://www.nonamestocks.com/2016/10/brokerage...-dark.html

Really good example of certain brokerage and hedge funds will not allow any of there clients to buy dark stocks. Thats why when we do go current plus with low float and everything Doc has going on, this thing is gonna explode.