FactSet Senior Earnings Analyst John Butters provides a preview of the key metrics for the second quarter earnings season for the S&P 500, which starts this week. He then discusses predictions for the actual earnings growth rate for the S&P 500 for Q2 after factoring in the impact of likely positive earnings surprises and some of the negative impacts to earnings and revenues that S&P 500 companies have already discussed on their earnings calls for Q2 to date.