In order to improve the seller's ability to sell at the ???best price??? available, the first best bidder whose priority is ranked on a price and time basis (or by a metric comprised therefrom or including size as well) is given the opportunity to buy additional volumes at an improved price after the 67 million has been Hit (i.e., 2 million sold at 100.01, 20 million sold at 100.00+, and 45 millio