Multi-parallel architecture and a method of using the same

A parallel processing method comprising:

• processing, on a plurality of securities processors, attributable security interest messages generated by market participants, wherein the attributable security interest messages relate to a specific security chosen from a plurality of securities traded on a securities trading system, wherein each individual security is assigned to one or more of the securities processors;
• and
• routing each attributable security interest message to one of the securities processors.

A computer program product residing on a computer readable medium having a plurality of instructions stored thereon which, when executed by the processor, cause that processor to:

• process, on a plurality of securities processors, attributable security interest messages generated by market participants, wherein each attributable security interest message relates to a specific security chosen from a plurality of securities traded on a securities trading system, wherein each individual security is assigned to one or more of the securities processors;
• and
• route each attributable security interest message to one of the securities processors.