Order (exchange)

It can persist indefinitely (although brokers may set some limit, for example, 90 days). Most markets have single-price auctions at the beginning ( open ) and the end ( close ) of regular trading. By entering a limit order rather than a market order, the investor will not buy the stock at a higher price, but, may not get the stock at all. A sell limit order is analogous; it can only be executed at the limit price or higher. Both buy and sell orders can be additionally constrained.

In a fast-moving market, or if there is insufficient liquidity available at the stop price, the price at which the trade is executed may be much different from the stop price. In this case, they would execute an OCO order composed of two parts: A limit order for ABC at $10.00, and a limit order for XYZ at $20.00.

The stock trades for $20.50, never even trading at or below the stop-loss order. It is in force from when it is entered to the end of regular trading on the same day.

Simple limit orders generally get high priority, based on a first-come-first-served rule. An order may be specified on the close or on the open, then it is entered in an auction but has no effect otherwise.

As long as there are willing sellers and buyers, market orders are filled. As with all limit orders, a stop-limit order doesn t get filled if the security s price never reaches the specified limit price. A trailing stop order is entered with a stop parameter that creates a moving or trailing activation price, hence the name.

For example, if an investor wants to buy a stock, but doesn t want to pay more than $20 for it, the investor can place a limit order to buy the stock at $20 or less . This gives the trader control over the price at which the trade is executed; however the order may never be executed ( filled ).

Trailing stop buy orders are used to maximize profit when a stock s price is falling and limit losses when it is rising. For example, a trader has bought stock ABC at $10.00 and immediately places a trailing stop sell order to sell ABC with a $1.00 trailing stop. A standard sell-stop order is triggered when the bid price is equal to or less than the stop price specified or when an execution occurs at the stop price. Key point is bid/ask which are queues and do not represent the stocks value.

There is often some deadline, for example, orders must be in 20 minutes before the auction. A sell stop price is always below the current market price.

After placing the order, ABC doesn t exceed $10.00 and falls to a low of $9.01. Conditional orders generally get priority based on the time the condition is met.

If a limit order has priority, it is the next trade executed at the limit price. This parameter is entered as a percentage change or actual specific amount of rise (or fall) in the security price.

Once the stop price is reached, the stop-limit order becomes a limit order to buy (or to sell) at no more (or less) than another, pre-specified limit price. Later, the stock rises to a high of $15.00 which resets the stop price to $14.00.

Instead of selling at market price when triggered, the order becomes a limit order. A buy market-if-touched order is an order to buy at the best available price, if the market price goes down to the if touched level. The bid queue shows $18.5, the market opens, being the highest bid the broker triggers the stop-loss and moves the order to the market, for which there has not even been a trade, an agreed value.

This means the trade will definitely be executed, but not necessarily at or near the stop price. Once the stop price is reached, the stop order becomes a market order. The impetus for the broker definition is commissions. A sell stop order is an instruction to sell at the best available price after the price goes below the stop price.

Limit orders are used when the trader wishes to control price rather than certainty of execution. A buy limit order can only be executed at the limit price or lower. If ABC reaches $10.00, ABC s limit order would be executed, and the XYZ limit order would be canceled. An uptick is when the last (non-zero) price change is positive, and a downtick is when the last (non-zero) price change is negative.

(Note that both bid and ask prices can trigger a stop order.) When the specified stop price is reached, the stop order is entered as a market order (no limit). For example, if an investor holds a stock currently valued at $50 and is worried that the value may drop, he/she can place a sell stop order at $40.

A so-called iceberg order requires the broker to display only a small part of the order, leaving a large undisplayed quantity below the surface . All of the above orders could be entered in an electronic market, but order priority rules encourage simple market and limit orders. For example an All-or-none buy limit order is an order to buy at the specified price if another trader is offering to sell the full amount of the order, but otherwise not display the order.

Iceberg orders and dark pool orders (which are not displayed) are given lower priority. . This sets the stop price to $9.00.

There are some standard instructions for such orders. A market order is a buy or sell order to be executed immediately at current market prices. The trailing stop order is not executed because ABC has not fallen $1.00 from $10.00.

These are sometimes called not held orders. A broker may be instructed not to display the order to the market. A day order is assumed unless another type is specified. A good-till-cancelled order requires a specific cancelling order.

If the share price drops to $40, the broker sells the stock at the next available price. They are single-price because all orders, if they transact at all, transact at the same price, the open price and the close price respectively. Combined with price instructions, this gives market on close (MOC), market on open (MOO), limit on close (LOC), and limit on open (LOO).

The use of stop orders is much more frequent for stocks, and futures, that trade on an exchange than in the over-the-counter (OTC) market Stop orders and stop-limit orders are very similar, the primary difference being what happens once the stop price is triggered. An order in a market such as a stock market, bond market or commodity market is an instruction from a customer to a broker to buy or sell on the exchange.

Market orders are therefore used when certainty of execution is a priority over price of execution. A market order is the simplest of the order types. Any tick sensitive instruction can be entered at the trader s option, for example buy on downtick, although these orders are rare. A discretionary order is an order that allows the broker to delay the execution at their discretion to try to get a better price.

These instructions can be simple or complicated. For example, a market-on-open order is guaranteed to get the open price, whatever that is.

It can also be used to advantage in a declining market when you want to enter a long position close to the bottom after turn-around. A stop limit order combines the features of a stop order and a limit order. Brokers who use the BID queue as a trigger violate the stop-loss definition as per the SEC who define it as a trade.

This order type does not allow any control over the price received. As soon as this trigger price is touched the order becomes a market buy order. A sell market-if-touched order is an order to sell at the best available price, if the market price goes up to the if touched level.

A buy stop price is always above the current market price. As soon as this trigger price is touched the order becomes a market sell order. One cancels other orders (OCO) are used when the trader wishes to capitalize on only one of two or more possible trading possibilities.

FOK orders are either filled completely on the first attempt or canceled outright, while AON orders stipulate that the order must be completely filled or not filled at all (but still held on the order book for later execution). A day order (the most common) is good only for one day. The broker above moves the stop order to the market queue based on a BID queue not on a completed transaction.

Market orders receive highest priority, followed by limit orders. The order is filled at the best price available at the relevant time.

A buy limit-on-open order is filled if the open price is lower, not filled if the open price is higher, and may or may not be filled if the open price is the same. Fill-or-kill orders are usually limit orders that must be executed or cancelled immediately. A conditional order is any order other than a limit order which is executed only when a specific condition is satisfied. A stop order (also stop loss order) is an order to buy (or sell) a security once the price of the security has climbed above (or dropped below) a specified stop price. For example, if an investor sells a stock short—hoping for the stock price to go down so they can return the borrowed shares at a lower price (Covering)—the investor may use a buy stop order to protect against losses if the price goes too high.

Two of the most common additional constraints are Fill Or Kill (FOK) and All Or None (AON). For instance, on a stock XYZ closing at $20 the day before with a stop-loss order at $19 and which trades on low volume, the bid/ask at the open can be skewed in that at the open all the market interest is not represented.

For instance, the trader may wish to trade stock ABC at $10.00 or XYZ at $20.00. It then falls to $14.00 ($1.00 from its high of $15.00) and the trailing stop sell order is entered as a market order. A trailing stop limit order is similar to a trailing stop order.

This can limit the investor s losses (if the stop price is at or below the purchase price) or lock in some of the investor s profits. A buy stop order is typically used to limit a loss (or to protect an existing profit) on a short sale. In fast-moving markets, the price paid or received may be quite different from the last price quoted before the order was entered. A market order for a large number of shares may be split across multiple participants on the other side of the transaction, resulting in different prices for some of the shares. A limit order is an order to buy a security at no more, or sell at no less, than a specific price.

Trailing stop sell orders are used to maximize and protect profit as a stock s price rises and limit losses when its price falls.