Investor expects to earn maximum returns with minimum risk on his investment.This book provides the concept of security and its valuation in terms of return and risk.It also provides strategies to identify the best industry or company share to invest funds as an investor.This book also facilitates the investors to know,when they buy and sell their shares to gain profits.Besides that this book covers the construction of optimal portfolio,revision of portfolios and portfolios by using extra funds for investment.This book is useful for the students of Master of Business Administration,Master of Commerce and Chartered Accountants.It is also useful for financial executes who want to update their knowledge about the recent thinking in investment management and who wish to improve their ability in financial decisions. To cater the needs of the people of financial discipline the subject matter has been discussed in a conceptual cum analytical manner.