Stocks Set to Open Lower; Coke, Oil Weigh  NEW YORK (Reuters) - U.S. stocks looked to open lower on  Wednesday as concerns about Hurricane Ivan weighed on sentiment  and Coca-Cola Co. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=KO.N target=/stocks/quickinfo/fullquote"&gt;KO.N&lt;/A&gt; warned that earnings for the rest of  the year would lag expectations.