There are currently three primary types of computer accessible trading systems for financial instruments such as stocks, bonds, commodities, derivatives, FX and other securities. The first is the conventional stock exchange system exemplified by the New York Stock Exchange and New York Mercantile Exchange. On such exchanges the market is made for each security by a single registered stock dealer, such as a registered stock specialist, who has a seat on the exchange. In addition to face-to-face and telephone communication to the dealers/specialists on the floor, computers are used to send orders to the dealers/specialists on the exchange floor. Information as to the buy and sell prices (bid/offer prices, respectively) are supplied by the dealer/specialist to the exchange and brokers through the dealer/specialist's trading computer terminal. Electronic orders are matched by the dealer/specialist maintaining an orderly market. Upon matching an order the dealer/specialist confirms the execution with the trading terminal and a central computer which stores transaction data.
The second system is electronic exchanges which utilize electronic access of dealer posted market prices without a negotiating specialist or floor based exchange. The largest of these is NASDAQ. It is a totally computer-based market where each member dealer can make its own market in the stocks traded on the exchange through a computer network. Dealers trading a significant number of shares in a stock in their own name and profiting from the spread (i.e., the difference between the price which they purchase shares and the price for which they sell them) are called market makers. Market makers are most often, but not always, large financial institutions. There are usually a number of market makers in a stock, each bidding and offering stock for themselves or their customers.
The best bid to buy by any market maker and the best offer to sell by any market maker for a security is called the security's “inside market.” NASDAQ supplies trading data to the participants via a computer network at three different service levels, known as Level I, Level II and Level III. Level I, inter alia, allows real-time access to the following data: (1) Inside market quotes (highest bid and lowest offer) for listed securities, (2) individual market maker quotations, as well as inside quotes for OTC Bulletin Board listed securities, (3) trade price and volume data. Level II additionally provides, among other things, real-time price quotations for each Market Maker and the inside price for each ATS in its computer network. Level III is a service limited to member dealers, allowing them to provide NASDAQ with their best bid and offer for securities in which they make markets, and receive incoming orders. There are various systems for displaying Level II and III data, such as disclosed in U.S. Pat. No. 5,297,032 to Trojan et al., issued Mar. 22, 1994.
Electronic exchanges may place, match, record and confirm transactions through their computer network. If a market order is placed through, for example NASDAQ without any restrictions, the NASDAQ computers make the actual match between an offer price and the bid price and thus will select the parties for the transaction. However a broker may indicate a preference to buy from or sell to a particular market maker.
Historically, market makers have solely determined the prices for securities on electronic exchanges such as NASDAQ. Non-members must place their orders and their customers' orders with a member dealer who receives a placement fee. Similar to other securities exchanges, electronic exchanges, such as NASDAQ, receive a fee for each such transaction.
NASDAQ also operates two automated execution systems, the Small Order Execution SystemSM (SOESSM) and SelectNet®. SOES is a system that provides automatic execution of market and marketable limit orders, while SelectNet offers delivery of orders with the ability to negotiate or execute those orders. SelectNet is also used to send liability orders to electronic communications networks (ECNs) and unlisted trading privileges (UTP) exchanges that do not participate in autoexecution in SOES or SuperSoesSM.
SOES is an automated trading system that lets SOES participants enter and execute orders in active SOES-authorized NASDAQ securities. There are two different set of rules under which the system operates, depending on the class of security: 1) SuperSoes, is used to transact executions in Nasdaq National Market® (NNM) securities, and 2) SmallCap SOES, is used to transact executions in NASDAQ SmallCapSM securities. In either system, reports of executions are sent to the Automated Confirmation Transaction ServiceSM (ACTSM) to be reported to the tape, and then both sides of the transaction are sent to the applicable clearing corporation(s) as locked-in trades for clearance and settlement.
SelectNet offers traders the ability to automate the negotiation and execution of trades. The maximum order size in SelectNet is 999,999 shares. Executions are automatically reported to ACT for public dissemination and sent to clearing for comparison and settlement. SelectNet also identifies incoming and outgoing orders and allows the market participant to see subsequent messages and negotiation results. These services are described in more detail in NASDAQ TRADING MANUAL (2001), the entire disclosure of which is hereby incorporated by reference.
The third trading system is alternative trading systems (“ATS”) which provide ATS members and electronic exchange users, such as NASDAQ users, an electronic network by which they may display and execute their orders independent of a market maker or specialist. By doing so, members avoid conventional fees while enjoying more current and complete market information. Examples of ECNs include Instinct, ARCA, BRUT, BTRD, and Island. Other ATSs include NASDAQ's Primex System and NYFIX's Millennium System.
Each member of an ECN has a trading terminal that is connected with the ECN's central order book computer. Members display their bids and offers and conduct transactions through the resulting network. The ECN's order book computer keeps track of bid/offer information including price, volume, and execution for each open and closed transaction as supplied to it in real time by its members. The order book computer also records which computer, and thus, which member posted each bid or offer. Once a bid is hit or an offer is taken through the central order book computer, the central order book and members' trading terminals are so updated and the accepted bids and offers are no longer displayed.
ECNs were originally developed for their members to trade amongst themselves. Thus, each ECN developed its own terminals and protocols. The ECN receives a fee, normally based on transaction volume, for each transaction.
In a conventional stock exchange or an electronic exchange, buyers and sellers are subjected to intermediaries in the transaction, i.e., respectively the specialist or the market maker dealing in a particular security. However, in an ECN, each bid and offer is a discrete and anonymous order, fully viewable by and accessible to all its members. Accordingly a broker/dealer member or for that matter, simply a member, may have a number of bids and offers at different prices, posted on an ECN's central order book. There are no specialist or dealer intermediaries for these orders, thus removing third party delays and fees typically associated with traditional exchanges and electronic exchanges. The member controls through its trading computer all aspects of trading securities including order entry, price, volume, duration and cancellation. The member may, at its discretion, select desirable transactions from all open orders available as displayed from the ECN's central order book. The member may choose from the inside market for the security or at a worse price outside of the inside market. Such freedom is highly desirable. For example, it may be a wise strategy to buy securities at a price equal to or higher than the best offer in order to obtain more shares than the inside offer is displaying. This strategy also recognizes that the inside market is moving quickly and may not be available when trying to take the best offer.
U.S. Pat. No. 6,278,982, assigned to Lava Trading, Inc., describes a securities trading consolidation system where each customer uses a single trader terminal to view, and analyze security market information from and to conduct security transactions with two or more ECNs, or other comparable ATSs, alone or in combination with one or more electronic exchanges. A consolidating computer system supplies the market information and processes the transactions. The consolidating computer system aggregates order book information from each participating ECN order book computer including security, order identification, and bid/ask prices information. Bid and ask prices for participating electronic exchanges may be integrated into the display. The combined information is displayed to a customer by security and by bids and offers, and then sorted by price, volume and other available attributes as desired by the customer. The consolidating computer system forwards to each trading terminal information from only those market maker ECNs and electronic exchanges that the customer is an ECN member or electronic exchange user and thus entitled to receive.
USPTO Backgrounds
USPTO Backgrounds