I was watching some sample data from a time &amp; sales window (the tape). There was a "Remarks" column with the comment: Between Bid and Ask. What does "Between Bid and Ask" mean? How can a trade happen between the bid and ask?   If I put in a buy market order, trade settlement price will be the ask price. If I put in a sell market order, trade settlement price will be the bid price.  Does "Between Bid and Ask" have something to do with limit orders?  *I have asked this question before, but I could not understand the answer.
According to :     By looking for trades that take place in between the bid and ask, you   can tell when a strong trend is about to come to an end. This is   because these trades are often placed by large traders who take a   small loss in order to make sure that they get out of the stock in   time.   A trader when buying needs to buy at the ask price and when selling needs to sell at the bid price. So how can a trade happen 'in between' the bid and ask?
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