Benjamin Graham professional investor, the father of value investment, he was extraordinary human with adequate and sound approach to analyzing investment.
How did Graham do it? Combining his extraordinary intellectual powers with profound common sense and vast experience, Graham developed his core principles, which are at least as valid today as they were during his lifetime:
A stock is not just a ticker symbol or an electronic blip; it is an ownership interest in an actual business, with an underlying value that does not depend on its share price.
Market price was and will always fluctuate, and nowadays we don’t have to wholly relying on them. Every company and corporation has their own true intrinsic value, and market price always depends on intrinsic value price of company. Business is growing then the market price will follow the growth.