insider trading

noun

: the illegal use of information available only to insiders in order to make a profit in financial trading

Examples of insider trading in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Spagnuolo isn’t first person to face insider trading charges spanning from Polymarket trades. Wyatte Grantham-Philips, Fortune, 29 May 2026 But to critics, that model incentivizes insider trading. Lucien Bruggeman, ABC News, 28 May 2026 Gannon Ken Van Dyke, the Army sergeant charged with insider trading on the Maduro ouster, has pleaded not guilty. Bloomberg, Mercury News, 28 May 2026 The cases have highlighted concerns about the potential for insider trading on prediction markets, which have surged in popularity in recent years. Joe Walsh, CBS News, 28 May 2026 See All Example Sentences for insider trading

Word History

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of insider trading was in 1966

Browse Nearby Words

Cite this Entry

“Insider trading.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insider%20trading. Accessed 4 Jun. 2026.

Legal Definition

insider trading

noun
: the illegal use of especially material inside information for profit in financial trading see also tippee

More from Merriam-Webster on insider trading

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster