What is Expiry Date? Your options have a definite period of validity. On expiry of this period, the options cannot be exercised. The last date of the validity period is the Expiry Date. Once the Expiry Date has passed, options can no longer be converted into shares. Updated on September 7, 2020 Was this article helpful? Yes No Related Articles Do I have to open a Demat or a Broker account? What is Funding? What do mean by lapse? When would I know the Vesting date/details? What do you mean by Vesting/Vesting date?