text: US Stocks End Up as Ford Raises Forecasts  NEW YORK (Reuters) - Stocks ended higher on  Friday after  Ford Motor Co. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=F.N target=/stocks/quickinfo/fullquote"&gt;F.N&lt;/A&gt; raised its earnings forecasts but gains on  the Nasdaq were checked after wireless technology provider  Qualcomm Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=QCOM.O target=/stocks/quickinfo/fullquote"&gt;QCOM.O&lt;/A&gt; said an accounting review may reduce  pretax income.