A dynamic quote window for a securities system includes a quote montage that displays quotes from market participants to buy or sell a security and a plurality of controls disposed proximate to the quote montage, each of the controls displaying a price level and aggregated quote size at the price level for the security. The aggregate controls display aggregated quotes at various price levels that represents publically displayed, available liquidity. Market participants can see the depth of the quotes at the inside. Also described in a multi-order window which when populated and transmitted can generate orders to capture all shares available at the price corresponding to the aggregate interest control depressed and better.