Unsavory Business Model By: TalkMarkets May 12, 2016 at 01:06 AM EDT The Dow Jones industrial average had its worst day since Feb. 11. The S&P 500 closed 0.96 percent lower for its worst day since April 7. Read More >> Related Stocks: Alphabet-A Chipotle Mexican Grill Dow Chemical Facebook Mitsubishi Motors Office Depot Royal Dutch Shell Cl B ADR Royal Dutch Shell Plc ADR Staples Toyota Motor Corp Ltd Ord ADR Wal-Mart Stores, Inc.