An increase in the Conference Board's index of leading economic indicators lifted the markets to a higher open with the Dow gaining 58 points to 17,035. Nasdaq climbed 31 points to 4,395.

On the upside

Skyworks Solutions (Nasdaq: SWKS) reported sharply higher third quarter earnings and revenue that topped estimates and forecast current quarter revenue ahead of estimates.

Ericsson (Nasdaq: ERIC) reported flat second quarter revenue but the results were better than expected as margins improved.

Zhone Technologies (Nasdaq: ZHNE) named James Norrod to the position of president and chief executive officer.

On the downside

Advanced Micro Devices (NYSE: AMD) narrowed second quarter losses but the results fell short of analyst expectations and the chip maker forecast current quarter revenue below estimates.

RealPage (Nasdaq: RP) warned that second quarter revenue would fall short of its previous guidance.

Key Energy Services (NYSE: KEG) warned of losses for the second quarter.

In the broad market, advancing issues outpaced decliners by a margin of nearly 5 to 2 on the NYSE and by nearly 2 to 1 on Nasdaq. The broader S&P 500 rose 7 points to 1966. Bitcoin eased $1 to $618.