Order (exchange)

Last updated February 26, 2024

An order is an instruction to buy or sell on a trading venue such as a stock market, bond market, commodity market, financial derivative market or cryptocurrency exchange. These instructions can be simple or complicated, and can be sent to either a broker or directly to a trading venue via direct market access. There are some standard instructions for such orders.

Market order

A market order is a buy or sell order to be executed immediately at the currentmarket prices. As long as there are willing sellers and buyers, market orders are filled. Market orders are used when certainty of execution is a priority over the price of execution.

A market order is the simplest of the order types. This order type does not allow any control over the price received. The order is filled at the best price available at the relevant time. In fast-moving markets, the price paid or received may be quite different from the last price quoted before the order was entered.^[1]

A market order may be split across multiple participants on the other side of the transaction, resulting in different prices for some of the shares. It is the most basic of all orders and therefore, they incur the lowest of commissions, from both online and traditional brokers.^[2]

Limit order

A limit order is an order to buy a security at no more than a specific price, or to sell a security at no less than a specific price (called "or better" for either direction). This gives the trader (customer) control over the price at which the trade is executed; however, the order may never be executed ("filled").^[3] 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. For example, if an investor wants to buy a stock, but doesn't want to pay more than $30 for it, the investor can place a limit order to buy the stock at $30. By entering a limit order rather than a market order, the investor will not buy the stock at a higher price, but, may get fewer shares than he wants or not get the stock at all.

A sell limit order is analogous; it can only be executed at the limit price or higher.

A limit order that can be satisfied by orders in the limit book when it is received is marketable. For example, if a stock is asked for $86.41 (large size), a buy order with a limit of $90 can be filled right away. Similarly, if a stock is bid $86.40, a sell order with a limit of $80 will be filled right away. A limit order may be partially filled from the book and the rest added to the book.

Both buy and sell orders can be additionally constrained. Two of the most common additional constraints are fill or kill (FOK) and all or none (AON). FOK orders are either filled completely on the first attempt or canceled outright, while AON orders stipulate that the order must be filled with the entire number of shares specified, or not filled at all. If it is not filled, it is still held on the order book for later execution.

Time in force

A day order or good for day order (GFD) (the most common) is a market or limit order that is in force from the time the order is submitted to the end of the day's trading session.^[4] For stock markets, the closing time is defined by the exchange. For the foreign exchange market, this is until 5 p.m. EST/EDT for all currencies except the New Zealand Dollar.

Good-til-cancelled (GTC) orders require a specific cancelling order, which can persist indefinitely (although brokers may set some limits, for example, 90 days).

Immediate or cancel (IOC) orders are immediately executed or cancelled by the exchange. Unlike FOK orders, IOC orders allow for partial fills.

Fill or kill (FOK) orders are usually limit orders that must be executed or cancelled immediately. Unlike IOC orders, FOK orders require the full quantity to be executed.

Most markets have single-price auctions at the beginning ("open") and the end ("close") of regular trading. Some markets may also have before-lunch and after-lunch orders. An order may be specified on the close or on the open, then it is entered in an auction but has no effect otherwise. There is often some deadline, for example, orders must be in 20 minutes before the auction. 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). For example, a market-on-open order is guaranteed to get the open price, whatever that may be. 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.

Regulation NMS (Reg NMS), which applies to U.S. stock exchanges, supports two types of IOC orders, one of which is Reg NMS compliant and will not be routed during an exchange sweep, and one that can be routed to other exchanges.^[5]^[6]^[7] Optimal order routing is a difficult problem that cannot be addressed with the usual perfect market paradigm. Liquidity needs to be modeled in a realistic way^[8] if we are to understand such issues as optimal order routing and placement.^[9] The Order Protection (or Trade Through) Rule (Rule 611) was designed to improve intermarket price priority for quotations that are immediately and automatically accessible, but its role in predatory trading behavior has faced mounting controversy in the recent years.

Conditional orders

A conditional order is any order other than a limit order which is executed only when a specific condition is satisfied.

Stop orders

A stop order or stop-loss order is an order to buy or sell a stock once the price of the stock reaches a specified price, known as the stop price. When the stop price is reached, a stop order becomes a market order. A buy-stop order is entered at a stop price above the current market price. Investors generally use a buy-stop order to limit a loss or to protect a profit on a stock that they have sold short. A sell-stop order is entered at a stop price below the current market price. Investors generally use a sell-stop order to limit a loss or to protect a profit on a stock that they own.^[10]

When the stop price is reached, the stop order becomes a market order. This means the trade will definitely be executed, but not necessarily at or near the stop price, particularly when the order is placed into a fast-moving market, or if there is insufficient liquidity available relative to the size of the order.

The use of stop orders is much more frequent for stocks and futures that trade on an exchange than those that trade in the over-the-counter (OTC) market.^[10]

Sell-stop order

A sell-stop order is an instruction to sell at the best available price after the price goes below the stop price. A sell-stop price is always below the current market price. 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. If the share price drops to $40, the broker sells the stock at the next available price. This can limit the investor's losses or lock in some of the investor's profits (if the stop price is at or above the purchase price).

Buy-stop order

A buy-stop order is typically used to limit a loss (or to protect an existing profit) on a short sale.^[11] A buy-stop price is always above the current market 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 (i.e. covering) — the investor may use a buy-stop order to protect against losses if the price goes too high. It can also be used to advantage in a declining market when an investor decides to enter a long position at what he perceives to be prices close to the bottom after a market sell-off.

Stop-limit order

A stop-limit order is an order to buy or sell a stock that combines the features of a stop order and a limit order. Once the stop price is reached, a stop-limit order becomes a limit order that will be executed at a specified price (or better).^[12] As with all limit orders, a stop-limit order doesn't get filled if the security's price never reaches the specified limit price.

Trailing stop order

A trailing stop order is entered with a stop parameter that creates a moving or trailing activation price, hence the name. This parameter is entered as a percentage change or actual specific amount of rise (or fall) in the security 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.

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 (10% of its current price). This sets the stop price to $9.00. After placing the order, ABC does not exceed $10.00 and falls to a low of $9.01. The trailing stop order is not executed because ABC has not fallen $1.00 from $10.00. Later, the stock rises to a high of $15.00 which resets the stop price to $13.50. It then falls to $13.50 ($1.50 (10%) from its high of $15.00) and the trailing stop sell order is entered as a market order.

Trailing stop-limit order

A trailing stop-limit order is similar to a trailing stop order. Instead of selling at market price when triggered, the order becomes a limit order.

Peg orders

To behave like a market maker, it is possible to use what are called peg orders.

Peg best

Like a real market maker, the stepper:

Uses the other side of the spread
Always jumps over the competitors order to be the best one, the first in the line

The conditions are:

Price limitation, no more jumping over, unless the price moves back to its area
Step value

Mid-price peg

A mid-price order is an order whose limit price is continually set at the average of the "best bid" and "best offer" prices in the market. The values of the bid and offer prices used in this calculation may be either a local or national best bid and offer. They are also called Peg-to-Midpoint.

Mid-price peg order types are commonly supported on alternative trading systems and dark pools, where they enable market participants to trade whereby each pays half of the bid–offer spread, often without revealing their trading intentions to others beforehand.

Market-if-touched 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. 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. As soon as this trigger price is touched the order becomes a market sell order.

One cancels other orders

One cancels other (OCO) orders are used when the trader wishes to capitalize on only one of two or more possible trading possibilities. For instance, the trader may wish to trade stock ABC at $10.00 or XYZ at $20.00. 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. If ABC reaches $10.00, ABC's limit order would be executed, and the XYZ limit order would be canceled.

One sends other orders

One sends other (OSO) orders are used when the trader wishes to send a new order only when another one has been executed. For instance, the trader may wish to buy stock ABC at $10.00 then immediately try to sell it at $10.05 to gain the spread. In this case, they would execute an OSO order composed of two parts: A limit buy order for ABC at $10.00, and a limit sell order for the same stock at $10.05. If ABC reaches $10.00, ABC's limit order would be executed, and the sell limit order would be sent. In short, multiple orders are attached to a main order, and the orders are executed sequentially.

Tick-sensitive orders

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. Any tick-sensitive instruction can be entered at the trader's option, for example buy on downtick, although these orders are rare. In markets where short sales may only be executed on an uptick, a short–sell order is inherently tick-sensitive.

At the opening

At the opening is an order type set to be executed at the very opening of the stock market trading day. If it wouldn't be possible to execute it as part of the first trade for the day, it would instead be cancelled.^[13]

Discretionary order

A discretionary order is an order that allows the broker to delay the execution at its discretion to try to get a better price; these are sometimes called not-held orders. It is commonly added to stop loss orders and limit orders. They can be placed via a broker or an electronic trading system.^[14]

Bracket

Puts to the market a pair of two orders: For the same title, for the same direction, i.e., both to sell:

One sell order is to realize the profit
The second to lock the loss, not to get even deeper

Quantity and display instructions

A broker may be instructed not to display the order to the market. 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.
A hidden (or "iceberg") order requires the broker to display only a small part of the order, leaving a large undisplayed quantity "below the surface".

Electronic markets

All of the above order types are usually available in modern electronic markets, but order priority rules encourage simple market and limit orders. Market orders receive highest priority, followed by limit orders. If a limit order has priority, it is the next trade executed at the limit price. Simple limit orders generally get high priority, based on a first-come-first-served rule. Conditional orders generally get priority based on the time the condition is met. Iceberg orders and dark pool orders (which are not displayed) are given lower priority.

Related Research Articles

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In financial markets, market impact is the effect that a market participant has when it buys or sells an asset. It is the extent to which the buying or selling moves the price against the buyer or seller, i.e., upward when buying and downward when selling. It is closely related to market liquidity; in many cases "liquidity" and "market impact" are synonymous.

The Stock Exchange of Hong Kong is a stock exchange based in Hong Kong. As of the end of 2020, it had 2,538 listed companies with a combined market capitalization of HK$47 trillion. It is reported as the fastest growing stock exchange in Asia.

Front running, also known as tailgating, is the practice of entering into an equity (stock) trade, option, futures contract, derivative, or security-based swap to capitalize on advance, nonpublic knowledge of a large ("block") pending transaction that will influence the price of the underlying security. In essence, it means the practice of engaging in a personal or proprietary securities transaction in advance of a transaction in the same security for a client's account. Front running is considered a form of market manipulation in many markets. Cases typically involve individual brokers or brokerage firms trading stock in and out of undisclosed, unmonitored accounts of relatives or confederates. Institutional and individual investors may also commit a front running violation when they are privy to inside information. A front running firm either buys for its own account before filling customer buy orders that drive up the price, or sells for its own account before filling customer sell orders that drive down the price. Front running is prohibited since the front-runner profits come from nonpublic information, at the expense of its own customers, the block trade, or the public market.

Algorithmic trading is a method of executing orders using automated pre-programmed trading instructions accounting for variables such as time, price, and volume. This type of trading attempts to leverage the speed and computational resources of computers relative to human traders. In the twenty-first century, algorithmic trading has been gaining traction with both retail and institutional traders. A study in 2019 showed that around 92% of trading in the Forex market was performed by trading algorithms rather than humans.

A financial quotation refers to specific market data relating to a security or commodity. While the term quote specifically refers to the bid price or ask price of an instrument, it may be more generically used to relate to the last price which this security traded at. This may refer to both exchange-traded and over-the-counter financial instruments.

All or none (AON) is a finance term used in investment banking or securities transactions that refers to "an order to buy or sell a stock that must be executed in its entirety, or not executed at all". Partial execution is not acceptable; the order will execute "only if there are enough shares available in a single transaction to cover it".

An immediate or cancel (IOC) order, also known as an "accept order", is a finance term used in investment banking or securities transactions that refers "an order to buy or sell a stock that must be executed immediately". In case the entire order is not available at that moment for purchase a partial fulfillment is possible, but any portion of an IOC order that cannot be filled immediately is cancelled, eliminating the need for manual cancellation. This "partial fulfillment" aspect is what differentiates IOC orders from all or none (AON) and fill or kill (FOK) orders, but the terms might be used interchangeably in some markets.

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<span class="mw-page-title-main">Market manipulation</span> Deliberate attempt to interfere with and subvert the free market

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Flash trading, otherwise known as a flash order, is a marketable order sent to a market center that is not quoting the industry's best price or that cannot fill that order in its entirety. The order is then flashed to recipients of the venue's proprietary data feed to see if any of those firms wants to take the other side of the order.

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<span class="mw-page-title-main">Order matching system</span>

An order matching system or simply matching system is an electronic system that matches buy and sell orders for a stock market, commodity market or other financial exchanges. The order matching system is the core of all electronic exchanges and are used to execute orders from participants in the exchange.

Investors Exchange (IEX) is a stock exchange in the United States. It was founded in 2012 in order to mitigate the effects of high-frequency trading. IEX was launched as a national securities exchange in September 2016. On October 24, 2017, it received regulatory approval from the U.S. Securities and Exchange Commission (SEC) to list companies. IEX listed its first public company, Interactive Brokers, on October 5, 2018. The exchange said that companies would be able to list for free for the first five years, before a flat annual rate of $50,000. On September 23, 2019, it announced it was leaving its listing business.

Following is a glossary of stock market terms.

<span class="mw-page-title-main">Securities market participants (United States)</span>

Securities market participants in the United States include corporations and governments issuing securities, persons and corporations buying and selling a security, the broker-dealers and exchanges which facilitate such trading, banks which safe keep assets, and regulators who monitor the markets' activities. Investors buy and sell through broker-dealers and have their assets retained by either their executing broker-dealer, a custodian bank or a prime broker. These transactions take place in the environment of equity and equity options exchanges, regulated by the U.S. Securities and Exchange Commission (SEC), or derivative exchanges, regulated by the Commodity Futures Trading Commission (CFTC). For transactions involving stocks and bonds, transfer agents assure that the ownership in each transaction is properly assigned to and held on behalf of each investor.

References

"Different Stock Sale Types". Eroller.

↑ U.S. Securities and Exchange Commission, "Market Order".
↑ Staff, Investopedia (2003-11-23). "Market Order". Investopedia. Retrieved 2018-10-10.
↑ U.S. Securities and Exchange Commission, "Limit Order".
↑ New York Stock Exchange, "NYSE Order Types".
↑ "Rules" (PDF). sec.gov. Retrieved 19 July 2023.
↑ "Archived copy" (PDF). Archived from the original (PDF) on 2015-01-09. Retrieved 2017-09-07.{{cite web}}: CS1 maint: archived copy as title (link)
↑ Archived copy Archived 2012-04-19 at the Wayback Machine
↑ Vassilis Polimenis, "A Realistic Model of Market Liquidity and Depth" (2005) Journal of Futures Markets, 25 (5), pp. 443-464
↑ Vassilis Polimenis, "Slow and Fast Markets", Journal of Economics and Business, Volume 57, Issue 6, "Transparency and Market Microstructure", November–December 2005, pp. 576–593.
1 2 "SEC.gov | Stop Order".
↑ U.S. Securities and Exchange Commission, "Short Selling".
↑ U.S. Securities and Exchange Commission, "Stop Limit Order".
↑ Weiss, David (2006). "After the Trade is Made, Processing Securities Transactions", Portfolio; a member of Penguin Group.
↑ Staff, Investopedia (2003-11-25). "Discretionary Order". Investopedia. Retrieved 2018-10-10.