A part of a market that relates to a place, an exchange authority, a type of security ( equity / bond / option / future), and a list of securities with a given set of trading methods. Chicago Mercantile Exchange Glossary
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market segment UK US noun [C] MARKETING, ECONOMICS
► a group of possible customers who are similar in their needs, age, education, etc.: »
Tablet computers are aimed at the home user market segment.
Financial and business terms. 2012.