The difference between the highest current bid price among dealers and the lower...

The fee charged by a broker/dealer -acting as a dealer- when he buys a security from a customer and sells it, at a higher price, to a market-maker. The fee, or markdown, is included in the sale price and is not itemized separately in the confirmation. (See As Principal; Five Percent Guideline)

A reduction of an originally established selling price for a special sale period or to move older merchandise.

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Marked to market Market