The date after which an option can no longer be either exercised or traded. This date will be specified in the contract specification for the product in question. Dresdner Kleinwort Wasserstein financial glossary
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Every option/covered warrant contract has a specified date in the future when it expires. The option contract becomes worthless if it remains unexercised on the expiry date. London Stock Exchange Glossary
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1. The date on which a warrant and the right to exercise it, cease to exist.
2. The date after which the warrant may no longer be exercised or traded. NYSE Euronext Glossary
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The date on which delivery takes place on a futures contract. In options trading, it is the date on which a European option can be exercised.
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expiry date UK US noun [C] UK (US expiration date)
► the date at which a document, agreement, etc. has no legal force or can no longer be used: »
You need to enter the credit card number and expiry date.
»Their concession to operate the franchise currently has an expiry date of 2052.
pass/reach its expiry date »The car's tax disc had passed its expiry date.
► COMMERCE the date printed on the container of an item for sale, especially food or medicine, after which the item can no longer be sold and should not be used: »
Food product labels must specify weights, ingredients, nutritional content, and expiry date.
»Never take any medication that is past its expiry date.
→ Compare BEST-BEFORE DATE(Cf. ↑best-before date), PULL DATE(Cf. ↑pull date), SELL-BY DATE(Cf. ↑sell-by date), USE-BY DATE(Cf. ↑use-by date)
► FINANCE, STOCK MARKET the last day on which an option (= the right to buy or sell particular shares) can be used: »
American warrants allow you to buy or sell the underlying security at any time up to the expiry date.
»By the option expiry date of 21 December the FTSE 100 index stood at 5,100.
Financial and business terms. 2012.