Krispy Kreme Posts Loss, Stock Off 16 Pct  LOS ANGELES (Reuters) - Krispy Kreme Doughnuts Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=KKD.N target=/stocks/quickinfo/fullquote"&gt;KKD.N&lt;/A&gt;  on Monday reported a quarterly loss due to store closings and  sluggish sales, sending its stock down 16 percent.