The Biggest Losers: Buy Them On The Dip? By: CNBC.com News November 21, 2011 at 17:34 PM EST U.S. stocks are down about 7 percent from their most recent high reached in late October, led to the downside by financial, material and energy companies. Read More >> Related Stocks: Apartment Investment & Mgmt Bank of America Chesapeake Energy Citigroup E Trade Financial Federated Investors Goldman Sachs Group JPMorgan Chase & Co Leucadia National Morgan Stanley Valero Energy