KLA Corp (NASDAQ: KLAC) shares are trading lower during Thursday’s after-hours after the company reported second-quarter financial results and issued third-quarter guidance. Here’s a summary of the details. What To Know: KLA reported quarterly earnings of $6.16 per share, topping the Street’s estimate of $5.91 by 4.23%. The company reported quarterly sales of $2.49 billion which beat the analyst expectations of $2.46 billion, a 16.55% decrease over sales of $2.98 billion from the same period last year. Cash flow from operating activities was $622.2 million while free cash flow was $545.4 milli…