The document analyzes the aggregate earnings estimates and revisions for Q1 2015, highlighting a 2.0% expected growth compared to Q1 2014, with 68% of S&P 500 companies surpassing earnings expectations. It notes a decline in share-weighted earnings since the start of the quarter, particularly in the energy sector, while the financials and health care sectors are experiencing higher growth rates. Overall, the earnings results show a positive trend despite challenges in certain sectors, particularly energy.