Investor pessimism ruled the markets for the second week in a row. Both bad news (downbeat announcements from retail and tech bellwethers Wal-Mart and Cisco, heightened turmoil in Egypt) and good news (lower-than-expected weekly new jobless claims) were followed by waves of selling. After struggling all week, the Dow gave up more than 200 points within an hour after U.S. markets opened on Thursday, which contributed to its worst week since June 2012. Renewed Fed fears also led to a surge in bond yields as prices fell. The benchmark 10-year Treasury yield spiked up 10 points on Tuesday alone and ended the week at a level it hasn't seen in more than two years.