Nearly 70 percent of companies so far have reported earnings results that have beat expectations, yet nearly 60 percent have missed revenue forecasts. Investors are gearing up for next week with reports from a wide range of companies spanning from AIG and Pfizer, to Comcast and Mastercard. Here's a preview of earnings reports to watch next week: On Tuesday, global pharmaceutical company Pfizer Inc. (NYSE: PFE) reports before the bell, and analysts expect the company to report first-quarter earnings per share of 56 cents on revenue of $14 billion.Before the market opens Wednesday, Mastercard, Comcast, Time Warner and Merck are all scheduled to release results. Mastercard Inc (NYSE: MA) is currently trading around five-hundred and thirty five dollars, and is forecast to report first-quarter EPS of $6.18.Stock in Comcast Corporation (Nasdaq: CMCSA) has gained just over 9 percent so far this year, and analysts expect to see revenue of $15 billion, while Time Warner Inc. (NYSE:TWX) is forecast to report EPS of seventy four cents.Analysts predict that global health care company Merck & Co., Inc. (NYSE: MRK) to report revenue of $11 billion.After the bell Wednesday, Visa Inc. (NYSE:V) is forecast to report higher results on revenue of $2.8 Billion, compared with $2.5 billion a year ago. Food manufacturer Kellogg Co. (NYSE:K) reports before the market opens Thursday and is currently trading around $65 dollars. The company is expected to report first-quarter EPS of just over a dollar. Finally, on Thursday AIG and Kraft are release results after the market closes.American International Group Inc. (NYSE: AIG) is expected to report first-quarter EPS of 87 cents on revenue of $8.6 billion, while Kraft Foods Group Inc (Nasdaq: KRFT) is expected to report EPS of 64 cents on revenue of $4.4 billion.Be sure to check back with me next week for more earnings news.