Stocks: Real-time ... all U.S. markets and updates until 8 p.m. See Closing Diaries table for 4 p.m. closing data. Sources: FactSet, Dow Jones Stock Movers: Gainers, decliners and most actives ...

Thus, this chart could provide a stark warning that stock prices are being driven more by investor optimism than the underlying value of these stocks, exactly the kind of market condition that Buffett ...