- The definition of aftermarket refers to the buying and selling of parts or equipment for a product after the initial product was manufactured and sold.
The supply and demand for replacement ink cartridges for a printer is an example of an aftermarket.
- (business) The market for goods and services surrounding capital purchases of equipment and of software.
- (business) The industry that serves that market, eg, in automobiles, computers.
- (finance) Trading activity in a security immediately following its initial offering to the public.
aftermarket - Computer Definition
Refers to products that are offered as replacements for an original part. An aftermarket product may be identical to the original or offer entirely different features.