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Class

In the case of derivative products, options of the same type-put or call-with the same underlying security. See: Series. In general, refers to a category of assets such as: domestic equity, fixed income, etc.

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class

1. See stock class.

2. Option contracts of the same type (put or call) and style (American or European) on the same security and expiring on the same expiration date.

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class (building)

Subjective evaluation of the desirability of an office building based on its age, amenities, maintenance, and design. There are no hard-and-fast rules, and evaluations may change for a virtually identical building in two different markets.The classification is independent of the location; one commonly encounters comments such as “It's a class B property in a class A location,” meaning a less desirable building happily situated at a great location and thus able to command higher rents than might otherwise be expected.