Abstract: Methods and systems are provided which enable options broker-dealers to execute a listed options contract trade order while simultaneously eliminating (or at least reducing) exposure to the negative consequences associated with toxic (or likely toxic) trades in the options market. By using toxicity and/or profit analyzers, for example, to detect, track and respond to the level of toxic (or likely toxic) orders present in an option contract order flow, a broker dealer can reduce the level of risk inherent in serving as a counter-party in listed options transactions, and inherent in offering a rapid execution guarantee. Various alternative embodiments are also disclosed.

Abstract: Methods and systems are provided which enable options broker-dealers to execute a listed options contract trade order while simultaneously eliminating (or at least reducing) exposure to the negative consequences associated with toxic (or likely toxic) trades in the options market. By using toxicity and/or profit analyzers, for example, to detect, track and respond to the level of toxic (or likely toxic) orders present in an option contract order flow, a broker dealer can reduce the level of risk inherent in serving as a counter-party in listed options transactions, and inherent in offering a rapid execution guarantee. Various alternative embodiments are also disclosed.

Abstract: Methods and systems are provided which enable equities broker-dealers to execute an equity trade order while simultaneously eliminating (or at least reducing) exposure to the negative consequences associated with toxic (or likely toxic) orders in the equities market. By using toxicity and/or profit analyzers, for example, to detect, track and respond to the level of toxic (or likely toxic) orders present in an equities order flow, a broker dealer can reduce the level of risk inherent in serving as counter-party to order flows, such as anonymous equities order flows. Various alternative embodiments are also disclosed.

Abstract: Methods and systems are provided which enable options broker-dealers to execute a listed options contract trade order while simultaneously eliminating (or at least reducing) exposure to the negative consequences associated with toxic (or likely toxic) trades in the options market. By using toxicity and/or profit analyzers, for example, to detect, track and respond to the level of toxic (or likely toxic) orders present in an option contract order flow, a broker dealer can reduce the level of risk inherent in serving as a counter-party in listed options transactions, and inherent in offering a rapid execution guarantee. Various alternative embodiments are also disclosed.

Abstract: Methods and systems are provided which enable equities broker-dealers to execute an equity trade order while simultaneously eliminating (or at least reducing) exposure to the negative consequences associated with toxic (or likely toxic) orders in the equities market. By using toxicity and/or profit analyzers, for example, to detect, track and respond to the level of toxic (or likely toxic) orders present in an equities order flow, a broker dealer can reduce the level of risk inherent in serving as counter-party to order flows, such as anonymous equities order flows. Various alternative embodiments are also disclosed.

Abstract: Methods and systems are provided which enable options broker-dealers to guarantee execution of an option trade order within a specified time window. By providing means to quantify and mitigate the effects of several factors which contribute to options market inefficiency (e.g., market structure, regulatory constraints, and “market misbehavior”), these methods and systems eliminate or at least reduce the level of broker-dealer risk inherent in offering an execution speed guarantee, while optionally simultaneously providing better execution quality for investors.

Abstract: Methods and systems are provided which enable equities broker-dealers to execute an equity trade order while simultaneously eliminating (or at least reducing) exposure to the negative consequences associated with toxic (or likely toxic) orders in the equities market. By using toxicity and/or profit analyzers, for example, to detect, track and respond to the level of toxic (or likely toxic) orders present in an equities order flow, a broker dealer can reduce the level of risk inherent in serving as counter-party to order flows, such as anonymous equities order flows. Various alternative embodiments are also disclosed.

Abstract: Methods and systems are provided which enable options broker-dealers to guarantee execution of an option trade order within a specified time window. By providing means to quantify and mitigate the effects of several factors which contribute to options market inefficiency (e.g., market structure, regulatory constraints, and “market misbehavior”), these methods and systems eliminate or at least reduce the level of broker-dealer risk inherent in offering an execution speed guarantee, while optionally simultaneously providing better execution quality for investors.

Abstract: A method for maintaining a uniform asset value per share and complete fungibility among all shares in investment funds while providing for differential fees and credits, as well as any other factors which may be differentially applicable to different investors, separately in respect of each investor. The method also permits accounting for a single investor's shares to be classified into different categories in respect of such factors as redemption rights or fees due, while maintaining a complete fungibility among such shares so that it is not necessary to identify any particular shares as belonging to any specific category.