A system and appertaining method are provided in which a brokerage firm transmits confidential information about security trading intentions to an anonymous server that follows through on a trade only if there is a likelihood that the trade can be completed. Pricing inputs are obtained that help a price engine determine pricing information for securities. The trade itself is executed by a primary trading system. If the trade is not completed, then the confidential information is not shared with a market maker or other purchasing or selling entity. When security is low and trust is high, for speed purposes, among other things, the anonymous server may be located with a market maker. When security is high and trust is low, any or all of the anonymous server, price engine, and primary trading system can be collocated on site with the broker in a secure environment.