Corporate earnings won't have to share the spotlight with major inflation data in the week ahead as they did during this past week's up-and-down market. Despite solid quarters from major banks, the S & P 500 and Dow Jones Industrial Average closed modestly lower Friday. The Dow rose 1.2% in its fourth straight positive week thanks to Thursday's powerful rally. It was a similar story Friday for the S & P 500 and the tech-heavy Nasdaq , though their weekly advances were smaller and they were their fourth in the past five weeks. Three Club holdings report their March quarterly...