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Quantitative Finance · Glosario

¿Qué es Customer priority?

Definition 24.3 Markets I: The Ecosystem and Exchange-Traded Markets · Capítulo 24 — Options Market Structure

Under customer priority resting orders of priority customers (broadly, the public, as opposed to broker-dealers and professional traders) at the best price are filled before any professional interest at that price, whatever their time of arrival. The remainder is allocated among professionals, usually pro rata on size, often after an entitlement for a designated market maker.

An order for 115 lots meets a level of six resting orders, listed in time priority with their sizes: two customers (C), three market makers, one of them designated (DMM), and a firm (F). Customers are filled in full under priority; the entitlement doubles the designated maker’s share at the expense of the other professionals. Data: the chapter’s build.
Figure 24.1. An order for 115 lots meets a level of six resting orders, listed in time priority with their sizes: two customers (C), three market makers, one of them designated (DMM), and a firm (F). Customers are filled in full under priority; the entitlement doubles the designated maker’s share at the expense of the other professionals. Data: the chapter’s build.
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