Stocks Skid 2% at Open Amid Euro Zone Fears By: CNBC.com News September 06, 2011 at 09:42 AM EDT Stocks tumbled sharply at the open Tuesday following the Labor Day weekend amid renewed fears the euro zone's sovereign debt crisis was worsening. Read More >> Related Stocks: Apple Baidu.com SP ADR Bank of America Citigroup Gsk Plc ADR Hewlett-Packard International Paper JPMorgan Chase & Co Netflix Wells Fargo