Crop Weather index insurance: With this type of insurance, the indemnity is based on realizations of a specific weather parameter measured over a pre-specified period of time at a particular weather station or for a given satellite grid.
Definition of stock for English Language Learners. : 1  the supply of goods available for sale in a store. : 2  a supply of something that is available for use. : 3  a share of the value of a company which can be bought, sold, or traded as an investment.
A stock index or stock market index is a measurement of the value of a section of the stock market. It is computed from the prices of selected stocks (typically a weighted average). It is a tool used by investors and financial managers to describe the market, and to compare the return on specific investments.