you are wrong about a few things. first, you may or may not have to call your broker. other brokers let you place orders on line just like you always have. socondy, there is no trading floor. otc markets is not an exchange. the reason it's hard to trade on the greys is because 1 market maker does not know what the other is doing. there is no incentive for them to call around looking for matches since they make no money on the trade. consequently, many trades are within brokerages where their market maker will make in house matches. if you are a very good customer of your broker you may get them to have their market maker call around.