From How to Pick Stocks Like Warren Buffett by Timothy Vick
In 1938, John Burr
Williams postulated that a company is worth no less and no more than what
owners can take out of it in earnings.
You can determine what a company is worth by calculating what it can
earn over its eternal lifetime and adjusting earnings for inflation and the
time value of money. If you estimate
that Intel will earn $175 billion over its expected life, after adjusting for
inflation and your risk tolerance, then you should be willing to pay up to $175
billion to acquire the whole company.
If Intel had 1.75
billion shares outstanding, each share must reflect the appraised value of the
whole and should sell for no more than $100.
To Williams, four
concepts are vital to appraising a company:
1. You
must see yourself as an owner of the business and appraise a public company as
you would a private enterprise.
2. You
must estimate the company’s future earnings potential.
3. You
must determine whether future earnings will be erratic or a steady “annuity.”
4. You
must adjust the value of future earnings by the time value of your money.