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The Trouble With Market-Cap Weighting

Daniel Sotiroff (daniel.sotiroff@morningstar.com)

The stock market, like any other market, is simply the sum of all transactions for shares of publicly listed companies, millions of which are conducted every day. Hour by hour, minute by minute, Benjamin Graham's voting machine is hard at work as market participants express their opinions regarding a company's future prospects through the price at which its shares transact. A company's share price resulting from this system, when multiplied by total shares outstanding, forms its market capitalization.