expiration date

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Related to Exercise Dates: Exercising an Option

expiration date

[‚ek·spə′rā·shən ‚dāt]
(materials)
The anticipated date when a material may go from usable to unusable.
References in periodicals archive ?
The authors conclude with the latest wrinkles arising from stock options, backdated exercise dates, and forward-dated grant dates.
861-4 (b)(2)(ii)(G), Example 6, applies the time basis for stock option income to the period between the grant and vesting dates, rather than between the grant and exercise dates.
TORONTO -- Caledonia Mining Corporation ("Caledonia") (TSX:CAL)(NASDAQ:CALVF)(AIM:CMCL) has amended the terms of 27,232,909 outstanding share purchase warrants - which have had exercise dates of September 29, 2005 as to a portion, and October 26, 2005 as to the balance - all exercisable at $0.