(plural materializations) 1  The conversion of something into a physical form. ( 2 physics) The conversion of energy into mass.
Market Order-- to sell Hutchison: sell Hutchison now at whatever prevailing market price. Usually one will get the stock at the ask price of the moment when the order reaches the exchange. Sometimes, one gets a series of partial trades (partially filled orders) at different prices, the shares of which add up to 2000.
Cost of Investing. The bid/ask spread is an additional cost of buying or trading stocks on top of the commissions charged by your broker. Since you buy at the higher ask price, you would have a loss equal to the spread if you sold right away and the stock price had not changed.