
Choice Market
A choice market is a market in which the bid-ask spread for a given financial instrument is zero. While some assert that a repeal of the ban on locked markets would eliminate many order types and make the market less complex, others argue that a repeal of the ban would lead to more crossed markets or markets in which bid prices are lower than asking prices. The Securities and Exchange Commission (SEC) considers a choice or locked market to violate fair and orderly market rules, which requires that buyers and sellers receive the next and best available prices when trading securities. A choice market, also called a locked market, is an unusual and typically short-term occurrence, as there is typically a spread between the bid price and ask. A choice market is a market in which the bid-ask spread for a given financial instrument is zero.

What Is a Choice Market?
A choice market is a market in which the bid-ask spread for a given financial instrument is zero. Also known as a locked market, this is a rare and usually short-lived circumstance.




Understanding a Choice Market
In a choice market, a financial instrument can be bought for the same price as it can be sold. Ordinarily, there is a difference between the highest price a buyer will pay for a security and the lowest price a seller will accept.
Choice markets are rare in financial markets, as most financial instruments trade with a spread between the bid and the ask. A choice market usually occurs when there is extreme liquidity in the markets and a limited number of intermediaries.
A choice market might occur, for instance, in an over-the-counter brokered market in which one side pays brokerage only, or when NASDAQ securities trade before the open.
A market that most closely resembles a choice market is Forex, or currency trading, in which some currency pairs trade with a spread of only a fraction of a percent. For example, the spread between the USD and EUR is usually only 1 basis point or 0.01%.
Special Considerations
The Securities and Exchange Commission (SEC) considers a choice or locked market to violate fair and orderly market rules, which requires that buyers and sellers receive the next and best available prices when trading securities. SEC regulations require national exchanges not to display a quote that indicates a locked market.
The SEC passed the Regulation National Market System in 2007, which banned locked markets in an effort to create a more orderly and competitive means for investors to transfer risk on the secondary market.
Policy critics argue that banning locked markets stifles innovation and the regulations do not achieve their intended effect. The ban on locked markets makes it more difficult and more expensive for investors to buy stocks. Instead, a securities information processor is likely to display incorrect bid-ask information for a given security. This can lead exchanges to decline orders because they are relying on inaccurate pricing information.
High-frequency traders may be able to get around locked market restrictions, allowing them to take advantage of the lag time between the stock bid and price changes and SIP updates. This can allow them to trade stocks at more advantageous prices than other investors trading the same stocks at the same exchange at the same time.
Many analysts contend that a repeal of the ban on locked markets would be pointless due to the many other rules and regulations already in place. While some assert that a repeal of the ban on locked markets would eliminate many order types and make the market less complex, others argue that a repeal of the ban would lead to more crossed markets or markets in which bid prices are lower than asking prices.
Related terms:
Bid and Ask
The term "bid and ask" refers to a two-way price quotation that indicates the best price at which a security can be sold and bought at a given point in time. read more
Bid-Ask Spread
A bid-ask spread is the amount by which the ask price exceeds the bid price for an asset in the market. read more
Buy Quote
A buy quote is one way of describing the best available price to buy a particular security at any given time throughout a trading session. read more
Forex (FX) , Uses, & Examples
Forex (FX) is the market for trading international currencies. The name is a portmanteau of the words foreign and exchange. read more
High-Frequency Trading (HFT)
High-frequency trading (HFT) uses powerful computer programs to transact a large number of orders in fractions of a second. read more
Locked Market
In finance, the term “locked market” refers to a situation in which the bid and ask price for an exchange-listed security are identical. read more
Middle Rate
The middle rate, also called mid and mid-market rate, is the exchange rate between a currency's bid and ask rates. read more
Over-The-Counter (OTC)
Over-The-Counter (OTC) trades refer to securities transacted via a dealer network as opposed to on a centralized exchange such as the New York Stock Exchange (NYSE). read more
Regulation NMS
Regulation NMS is a set of rules that aim to improve U.S. exchanges through fairness in price execution. read more