At midday, the S&P 500 (^GSPC +0.39%) had edged up 0.17% to 7,566.72 as sector rotation offset chip weakness. The Nasdaq Composite (^IXIC 0.15%) slipped 0.39% to 26,749.70 on a semiconductor sell-off, and the Dow Jones Industrial Average (^DJI +1.78%) jumped 1.69% to 51,544.95 on value and energy tailwinds.