Abstract: Price improvement in credit screened trading systems is achieved by entering a maximum price improvement (MPI) amount with a maker quote. The system prepares separate quote queues for each trading floor including only quotes where bilateral credit exists. Quotes are arranged using Price, MPI, time priority. When a quote is dealt, a dealable price improvement is calculated as the amount of the MPI required to improve the dealt quote's position in the queue.

Abstract: In an electronic trading system, prime brokerage services may be provided by assigning one or more dependent or child deal codes to a deal code. Prime broker trades are conducted via the dependent deal codes but appear to the market as deals with the parent deal code using credit assigned to the parent deal code. The prime bank customer is a dependent deal code of the customer bank which also trades on the system, allowing credit to be allocated by the customer dependent code for prime broker trades. A deal code may have several dependent deal codes which can trade with one another. Dependent deal codes can be used to expand the size of trading floors beyond that which can be supported by a single deal code and to assist in migration between system versions.

Abstract: Benchmarks for the price of a financial instrument such as FX spot rate for a currency pair are calculated by an algorithm based on a previous benchmark and a market price. The market price is derived from a deal price and a quote price. The deal price is based on deals conducted since the last benchmark and the quote price is based on bids and offers entered since the last benchmark. For each of the deal and quote prices, a price, weight and scatter is calculated which is used to calculate a benchmark price, weight and scatter and a benchmark error.

Abstract: A trading system such as an anonymous trading system for trading financial and other instruments can vocalise trading data to trader workstations as well as display it on a screen. Where a trader selects to receive vocal announcements, a trading floor identifier unique to his trading floor is also announced at random intervals.

Abstract: A method for vocalizing information from an electronic brokerage system (EBS) used in international currency exchange incorporates a specialized grammar to emulate the interpersonal trading style and vernacular used by foreign currency brokers catering to the international banking industry. Used in conjunction with the screen display of an EBS, the vocalizing method makes the system easier for a trader to use by emphasizing information content. The vocalizing method optimizes redundancy of data available to the user to minimize both the ambiguity of data to and the cognitive effort of the user. The vocalizing method chooses what data should be vocalized, when the data should be vocalized, and, in what manner the data should be vocalized. For example, a long form of the offer and bid prices is initially vocalized which includes both figure and pips data, but thereafter only the pips are vocalized. Three categories of messages each provide different data to the system user.