By Jud Pyle, CFA, chief investment strategist for the Options News NetworkShares of Cigna ( CI) are up more than 2% so far today to $21.30. The company is set to announce earnings before the market opens on Thursday, April 30, and at least one investor is bullish, expecting a potential bump in the stock. This investor has been active today at the May 25 call strike. Looking at these back-month options, we find that more than 10,000 had traded in the first hour of trading this morning. Open interest in these calls was just 2,607, according to the Sidewinder report at www.ONN.tv.