Take your pick Small cap basic, Small cap pro, Big cap pro, or ultimate trader. There are no marketmakers for Baltia, the .001 bid & .0073 offer shown on Ihub's trade data, is leftover from the closing on 5/7/18.
I've never attempted to trade a grey sheeter. Since bid & ask quotes are not available, you have to place the order directly with your broker. I'm guessing they may use something like a Craigslist for greysheet stocks where they post orders for their clients.
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