Traders Build Up Bullish Positions on IBM Corp.

CHSI - Catalyst Health Solutions, Inc. – Options on the full-service pharmacy benefit management (PBM) company are active today on news it agreed to purchase Walgreen Company’s PBM business for $525 million. Shares in Catalyst Health Solutions jumped 18.3% during the session to hit an intraday and all-time high of $52.69. One options player appears to have nearly doubled his money in the span of three weeks by taking profits on a bullish stance initiated back on February 16, 2011, when shares in CHSI closed at $45.65. It…