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A central limit order book (CLOB) [1] is a trading method used by most exchanges globally using the order book and a matching engine to execute limit orders.It is a transparent system that matches customer orders (e.g. bids and offers) on a 'price time priority' basis.
[5] limit orders are price points where traders have ordered to buy or sell a stock, these orders will not get executed unless the price of the market hits their limit order price point. [ 6 ] [ 7 ] These orders are not shown on candlesticks charts and can only be seen on Order Books, once these orders have been executed they turn to Market ...
In securities trading, an order book contains the list of buy orders and the list of sell orders. For each entry it must keep among others, some means of identifying the party (even if this identification is obscured, as in a dark pool), the number of securities and the price that the buyer or seller are bidding/asking for the particular security.
A limit order will not shift the market the way a market order might. The downsides to limit orders can be relatively modest: You may have to wait and wait for your price.
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.
The bid–ask spread (also bid–offer or bid/ask and buy/sell in the case of a market maker) is the difference between the prices quoted (either by a single market maker or in a limit order book) for an immediate sale and an immediate purchase for stocks, futures contracts, options, or currency pairs in some auction
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It was in the US, in the late 1990s, that the first instances of Smart Order Routers appeared: "Once alternative trading systems (ATSes) started to pop up in U.S. cash equities markets … with the introduction of the U.S. Securities and Exchange Commission’s (SEC’s) Regulation ATS and changes to its order handling rules, smart order routing (SOR) has been a fact of life for global agency ...