Most value investors analyze companies based on their current financial performances, as measured by the stock price as a multiple of earnings or book value.

FORBES: Money & Investing

Privately held fortunes were valued at book value or by coupling estimates of revenues, profits or book value to prevailing ratios for similarly publicly traded companies.

FORBES: These 26 poor souls didn't make our top 40.

Barrow, 60, is sticking to the formula he has used for nearly four decades: Pay some attention to the prospects for a company, just as a growth manager would, but don't buy unless it is trading at a low multiple of its earnings or book value.

FORBES: Keep the Faith