The S&P 500 rose 0.2% and is on track for its seventh winning week in nine, while the Dow Jones Industrial Average gained 167 points, or 0.4%, and the Nasdaq composite added 0.2%, AP reported. All three indexes came off all-time highs set the previous day.Trading may see increased volatility later in the session as reports on the US services sector are released. Treasury yields in the bond market were largely steady ahead of the data.Normally, the first Friday of the month draws attention to the US governme ...