expiration date


Definition of expiration date 

1 : the date after which something (such as a credit card) is no longer in effect

2 : the date after which a product (such as food or medicine) should not be sold because of an expected decline in quality or effectiveness

Examples of expiration date in a Sentence

Check the expiration date on the bottle to make sure the medicine is still good.

Recent Examples on the Web

After logging in, the unauthorized party was able to access the customer's full name, address, phone number, email address, birthday and debit or credit card number with expiration dates. Caroline Blackmon, USA TODAY, "Macy's warns customers of online data breach," 11 July 2018 Time Canadian Prime Minister Justin Trudeau Thursday said months of trade negotiations stalled this week when Vice President Mike Pence insisted upon a deal with a five-year expiration date. Holly V. Hays, Indianapolis Star, "Reports: Trudeau says 'no possibility' of NAFTA deal with Pence's sunset clause ultimatum," 1 June 2018 Today is the expiration date Mr. Pai and his colleagues placed on the 2015 Obama administration rule that applied century-old utility regulation to the Internet. James Freeman, WSJ, "FCC Chairman Still Receiving Threats Over ‘Net Neutrality’," 11 June 2018 There is no expiration date on the re-purchase program, which begins immediately. Mike Freeman, sandiegouniontribune.com, "Qualcomm approves $10 billion share buyback," 9 May 2018 So, while refrigeration slows down the loss of live cultures, shelf-stable probiotics should have enough cultures to stay fresh until the expiration date. Aliza Abarbanel, Bon Appetit, "What’s the Deal with Probiotics and Which Ones Should I Take?," 7 May 2018 Just how firm are expiration dates on bottles of allergy or pain pills? Linda A. Johnson, chicagotribune.com, "Pill expiration dates can have wiggle room if stored right," 4 May 2018 Just how firm are expiration dates on bottles of allergy or pain pills? Washington Post, "Pill expiration dates can have wiggle room if stored right," 2 May 2018 The information at risk includes customer names, credit card number and expiration dates. Austen Erblat, Sun-Sentinel.com, "Wellington data breach affects more departments serving residents," 15 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expiration date.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of expiration date

circa 1946, in the meaning defined at sense 1

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Last Updated

6 Oct 2018

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The first known use of expiration date was circa 1946

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expiration date


Financial Definition of expiration date

What It Is

The expiration date is the last day an options contract can be exercised. After that, the contract becomes null and void.

How It Works

When an options contract is written, the expiration date is specified as one of its terms. For equity options, this date is usually the third Saturday of the specified month of expiration. The contract's expiration date is the last opportunity the holder has to exercise the options contract. When the expiration date passes, the terms of the contract become void and the contract loses the entirety of its market value.

Why It Matters

An option's price is made up of two main factors: intrinsic value and time value. Time value is directly related to the amount of time the option has before it expires. The longer an option has until its expiration date, the more time the underlying stock price has to move, which makes the option more valuable. As the contract moves closer to its expiration, the odds that the stock price will change are lower, and the option's value decreases.

Also, if an option is at or near its strike price near to its expiration, the volatility of the option will most likely increase.

Source: Investing Answers

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