The Expert Market is exactly the same as the Greys in that it isn't quoted.
"Warning! Unsolicited Quotes Only
Investors should be aware that no firm is making a market in this stock on OTC Link. All prices reflect unsolicited customer orders and investors may have a difficult time selling this stock. Click here for more info on Unsolicited Quotes. Warning! This security is traded on the Expert Market
The Expert Market is a private market to serve broker-dealer pricing and best execution needs in securities that are restricted from public quoting or trading. Restrictions can be based on issuer requirements, security attributes, investor accreditation and/or suitability risks."
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