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
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The user won 93% of their five-figure wagers, even on military operations that were not public information, raising concerns of insider trading. Sasha Rogelberg, Fortune, 6 Apr. 2026 The trio of legal actions against Illinois, Connecticut and Arizona is the furthest Trump officials have gone to try to override state laws and set the rules for a fast-growing industry that has run headlong into thorny questions about insider trading and profiting off war and suffering. Bobby Allyn, NPR, 2 Apr. 2026 Any efforts to meaningfully regulate insider trading would, in my view, require clear rules and viable enforcement mechanisms. Parker Bach, The Conversation, 31 Mar. 2026 The letter to the Commodity Futures Trading Commission and the Office of Government Ethics comes after weeks of increasing scrutiny regarding potential insider trading by government employees using prediction markets like Polymarket and Kalshi. Jared Perlo, NBC news, 30 Mar. 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

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Cite this Entry

“Insider trading.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insider%20trading. Accessed 7 Apr. 2026.

Legal Definition

insider trading

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

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