Second-quarter earnings were mixed, but investors found much to like about the numbers.It isn't easy for either people or companies to get over an average Hump Day. One exception today was telecom and utility industry contracting-services provider Dycom Industries (DY -4.57%). The company's shares closed almost 5% higher in price thanks to a well-received quarterly earnings report. That jump looked especially impressive next to the S&P 500 index's 0.2% dip on the day. Setting a new recordDycom's second quar ...