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• Securities, such as stocks and bonds, may change hands on organized markets and exchanges after regular business hours, in what is known as the after-hours market.

  These electronic transactions explain why a security may open for trading at a different price from the one it closed at the day before.

  There's also trading in benchmark indexes such as Standard & Poor's 500-stock Index (S&P 500) and the Dow Jones Industrial Average (DJIA) before US stock markets open. The level of activity and the direction the trading - up or down - is widely interpreted as an early indicator of what's likely to happen in the market during the day.

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  Cite Definition for After-hours market

  American Psychological Association (APA)

  After-hours market. (n.d.). Yahoo Personal Finance Glossary. Retrieved March 27, 2023, from website: http://www.expertglossary.com/definition/after-hours-market.

  Chicago Manual of Style (CMS)

  After-hours market. finance.yahoo.com. Yahoo Personal Finance Glossary. Yahoo Finance. http://www.expertglossary.com/definition/after-hours-market (accessed: March 27, 2023).

  Modern Language Association (MLA)

  "After-hours market." Yahoo Personal Finance Glossary. Yahoo Finance. 27 March. 2023 http://www.expertglossary.com/definition/after-hours-market.

• Browse Related Terms: After-hours market, American depositary share (ADS), Bellwether, Composite trading, DIAMONDs, Electronic Data Gathering, Analysis, and Retrieval System (EDGAR), Listed security, Listing requirement, Nikkei Stock Average, Options Clearing Corporation (OCC), OTC Bulletin Board (OTCBB), Regional exchange, Restricted security, Unlisted security