aggressor

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noun

One who starts a hostile action: assailant, assailer, assaulter, attacker. See attack/defend.

n

Definition: attacker, instigator
Antonyms: retaliator, victim

The party in a trade that initiates the deal. The aggressor works with the dealer, who takes a passive role and posts the bid and ask quotes. The aggressor in a transaction will typically attempt to instigate the deal and push it forward in order to obtain financial benefit.

Investopedia Says:
In order flow, trades are considered "positive" or "negative" depending on whether the aggressor is buying or selling. For example, an aggressor selling 10,000 units will create an order flow of -10,000 with the dealer. Because commodity futures must have a buyer and seller who execute a trade simultaneously, the dealer in the aforementioned example will have a positive 10,000 order flow.

Related Links:
Understanding the real forces that move stock prices is part of being a good trader. The Basics Of The Bid-Ask Spread
Ever wonder what happens behind the scenes when you buy or sell a stock? Read on and find out! The Nitty-Gritty Of Executing A Trade
What number of shares determines adequate liquidity for a stock?
What is the difference between a broker and a market maker?
What are the determinants of a stock's bid-ask spread?

IN BRIEF: A person or country that starts a fight or war.

After a war begins, it can be hard to tell which army was the aggressor.

LearnThatWord.com is a free vocabulary and spelling program where you only pay for results!

For a list of words related to aggressor, see:

• Violent Persons - aggressor: initiator of unprovoked attack

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See words rhyming with "aggressor."

Dansk (Danish)
n. - aggressor, angribende part, fredsbryder

Nederlands (Dutch)
aanvaller

Français (French)
n. - agresseur

Deutsch (German)
n. - Aggressor, Angreifer

Ελληνική (Greek)
n. - επιτιθέμενος, εισβολέας, επιδρομέας

Italiano (Italian)
aggressore

Português (Portuguese)
n. - agressor (m)

Русский (Russian)
агрессор

Español (Spanish)
n. - agresor, atacante

Svenska (Swedish)
n. - angripare

中文（简体）(Chinese (Simplified))
攻击者, 侵略国, 侵略者

中文（繁體）(Chinese (Traditional))
n. - 攻擊者, 侵略國, 侵略者

한국어 (Korean)
n. - 침략자

日本語 (Japanese)
n. - 攻撃者, 侵略者

العربيه (Arabic)
‏(الاسم) ألمعتدي, ألباديء بالعدوان‏

עברית (Hebrew)
n. - ‮מחרחר מלחמה, תוקפן‬

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