Share
In financial markets, a share is a unit of account for various investments. It often means the stock of a corporation, but is also used for collective investments such as mutual funds, limited partnerships, and real estate investment trusts.Index
Index is a statistical aggregate that measures change.All Index are not same; they can be differentiated based on countries, the market cap of stocks they cover or even how any stock will become part of Index.
A stock is a general term used to describe the ownership certificates of any company. Holding a particular company's share makes you a shareholder.
Full Form of Sensex is Sensitive Index. Sensex is the stock market index of the BSE- Bombay Stock Exchange/ BSE Sensex.
NIFTY
Nifty is an index of top 50 companies traded on the National Stock Exchange (NSE)
Coverage: 50 stocks
Established in 1995
Located in New Delhi
SenSex
Sensex stands for Sensitive Index
Sensex is an index of top 30 companies traded on the Bombay Stock Exchange
Coverage: 30 stocks