System and Method for Selectively Directing Financial Transactions to Designated Parties

A computerized trading platform, comprising:

• a computer processor;
• digital computer memory including computer code stored therein, the computer code controlling the computer processor to perform the steps of:
• receiving an order for a transaction;
• determining if a size of the order is at most a small size order;
• allocating to a Lead Market Maker (LMM) all of the order as an Enhanced Allocation if the size of the order is at most the small size order (SSO) threshold and the LMM is quoting at a national best bid or offer (NBBO);
• allocating to the LMM the Enhanced Allocation of the order if the size of the order is above the SSO threshold and the LMM is quoting at the NBBO, wherein the LMM portion is equal to the greater of (i) the proportion of the size of the quote of the LMM to the total quote size at the LE-BBO, (ii) sixty percent (60%) of the order if there is only one other Market Maker quotation at the LE-BBO, and (iii) forty percent (40%) of the order if there are at least two other Market Makers quotations at the LE-BBO, wherein the LMM to which the Enhanced Allocation is allocated is chosen utilizing a round robin allocation from all the LMMs quoting at NBBO at the time the order was received.