Open: 29.38 Close: 29.78 Change: 0.4

Today's Summary

Comcast (NASDAQ: CMCSA) stock sold off in Friday trading despite gains for the broader market. Charter Communications published its second-quarter report before the market opened this morning. Charter reported earnings per share of $9.18 on sales of $13.77 billion. With Comcast operating in the same service category, investors are worried that an industrywide trend could weigh on its results. Comcast ( CMCSA +1.29% ) , a broadband and wireless connectivity provider, closed Wednesdays session at $30.32, up 1.98% Todays gains continued Comcasts upward trend from the past five days. Comcast was the highest-performing stock in the S&P 500 today.