Options series

Options Series

All option contracts on the same security of the same variety and with the same terms. For example, all puts on stock in General Electric with a strike price of $15 expiring next January belong to the same option series. See also: Triple witching.

Options series.

An options series includes all the contracts within an options class that have identical terms, including expiration date and strike price. For example, all the calls on Stock A that expire in March and have a strike price of 45 are members of the same options series.