Economic Definition of spot. Defined.
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Term spot Definition: The sale of a commodity for immediately delivery on the "spot." Most stuff that consumers purchase are what we could call spot transactions. You give the store some money and go home with your purchase. Much buying and selling in financial markets is also of the spot transaction variety. For example, you give your stock broker $100,000 and "take home" 2,000 shares of Omni Conglomerate, Inc. stock. To appreciate why it's necessary to have a name for these sorts of transactions, you need to examine futures.