A buy limit order is an order to purchase an item at a price above or below a specified price, allowing traders to limit how much they spend. An investor who uses a limit order ensures that the price will not be higher than the specified limit. Even though the price is guaranteed, the order will not be filled. A buy limit order would not be fulfilled unless the asking price is equal to or less than the limit price. If the investment doesn't meet the stated price, the series is not packed, and the investor may lose a valuable investment. Basically, a buy limit order ensures that the investor will spend the buy limit order price or more, but it does not guarantee that the order will be filled.