J.P. Morgan Chase Misses Target  NEW YORK (Reuters) - J.P. Morgan Chase   Co. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=JPM.N target=/stocks/quickinfo/fullquote"&gt;JPM.N&lt;/A&gt;, the  No. 2 U.S. bank, said  on Wednesday profit fell in the third  quarter, missing analyst expectations, as a result of costs  from its July merger with Bank One Corp. and lower fixed-income  revenues.