Method for the electronic processing of share transactions

Abstract

Method of trading securities electronically, each security is defined by its symbol (S1, S2) and its quotation value (P1, P2, P3, P4), of a first security (S1) to be sold at a first initial quotation value (P1) with a defined initial quantity (N1) which represents a first initial global value (P1*N1) at a reference point, wherein it comprises the following steps: a) definition of a second security (S2) to be acquired, for which one specifies a second quantity (N2) at a second initial quotation value (P2) representing a second initial global value (P2*N2) reference point; b) definition of a trading condition (RS) representing a gain resulting from the sale of the first quantity (N1) of the first security (S1) and the purchase of the second quantity (N2) of the second security (S2) after an evolution in the time of the quotation values of the first and second security, allowing this gain (RS) to be realized, having understood that this gain would have been zero if the transaction had been conducted at the reference point; c) monitoring of the current quotation value (P3) of the first security and the current quotation value (P4) of the second security; d) calculation of the fictitious gain (AS) resulting from the sale of the first quantity (N1) at the current quotation value (P3) of the first security (S1) and of the purchase of the second quantity (N2) at the current value (P4) of the second security (S2); e) if this fictitious gain (AS) is equal to, or exceeds, the value of the trading condition (RS), verification that all or part of the quantity (N1) of the first security is actually required by the bid market and if all or part of the second quantity (N2) of the second security is available on the ask market, and in the positive event; f) simultaneous sale of all or part of the first quantity (N1) of the first security (S1) and purchase all or part of the second quantity (N2) of the second security (S2), and g) in the negative event, re-execute steps c) to e).

Dependencies are inferred from the claim text.