Stock analysis is done to conclude whether stock price will move up or down. There are 2 types of stock analysis, Fundamental and technical analysis.
Fundamentals analysis include studying all aspects of company like Balance sheet, Sales, Profit, Margin, Revenue etc., these are not done by major players like institutional investors. Retails investors won’t be able to access all the information.
Technical analysis is derived from only stock price and volume. Which is easily accessible to everyone.