Market orders
Good news is that market orders once filled inare immediately carried out. The bad news is that you cannot know beforehand the price it will be carried out.
The order is generally carried out at the market price or near the market price because these are quickly carried out stocks. However if the stock is being actively negotiated in moments in which the order is allocated a change in the market price could occur.
A market order, for example, is allocated to carry on with the buy of a newly issued stock that is being negotiated for the first time in the secondary market could be carried out at a much higher price than that offered one.
When a market speeds up before one or many determined stocks, a market order could be carried out at significantly differing prices in relation to the market price. These speed up markets have to stand on-line negotiations. Even though investors receive current market prices a market order may not be at the same level. At the time in which the on-line order is allocated the market could have considerably advanced making received market prices be only an approximation to reality because market orders are carried out in first instance. If many orders have been allocated before yours the carry out price could significantly differ from the market price. In this kind of market you should use limit orders to protect yourself from risks like price fluctuation.
Market orders are generally day orders which means that they expire at the end of the day if for some reason they are not dealt.



