market maker

British

noun

a dealer in securities on the London Stock Exchange who buys and sells as a principal and since 1986 can also deal with the public as a broker

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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market maker

Citadel executes roughly 35% of all retail order volume in the U.S., making it the largest market maker trading against this cohort.

From MarketWatch ● Jul. 1, 2026

And it is now clearly the market maker of last resort for the Treasury market, willing to ensure government bonds remain easy to trade.

From The Wall Street Journal ● Jun. 23, 2026

Dick, the Toronto-based founder of Triple D Trading, is a small-time market maker in S&P 500 stocks before the opening bell.

From The Wall Street Journal ● Mar. 23, 2026

There is no market maker working to keep those two valuations in line.

From MarketWatch ● Feb. 20, 2026

Along with Goldman, Deutsche Bank was the leading market maker in abstruse mortgage derivatives.

From "The Big Short" by Michael Lewis

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023