Traders

n. businessman, merchant; ship used in trade

The term Trader can refer to:Merchant, retailer or one who attempts to generally buy wholesale and sell later at a profitTrader (finance), someone who buys and sells financial instruments such as stocks, bonds, derivatives, etc.Trader Classified Media, classified advertisement companyTrader Media East, largest classified advertising company in Central and Eastern EuropeTraders (television series) (1995-2000), Canadian drama on Global Television NetworkTrader, the name of two separate fictional characters in the Marvel Comics universeTraders Hotel, a four-star hotel brand managed by Shangri-La Hotels and Resorts.Eubians, in Catherine Asaro's Saga of the Skolian empireStreet market trader
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Noun
1. someone who purchases and maintains an inventory of goods to be sold
(synonym) bargainer, dealer, monger
(hypernym) merchant, merchandiser
(hyponym) art dealer
(derivation) trade, merchandise

n. trader, businessman, merchant; ship used in trade

Persons who take positions in securities and their derivatives with the objective of making profits. Traders can make markets by trading the flow. When they do that, their objective is to earn the bid/ask spread. Traders can also be of the sort who take proprietary  positions whereby they seek to profit from the directional movement of prices or spread positions .