CSX – CSX Corporation – The provider of rail-based transportation services popped up on our ‘most active by options volume’ market scanner during the first half of the trading session due to bullish trading activity in the July contract. CSX Corp.’s shares are currently up 0.65% at $48.01 as of 1:05 pm (ET), but at least one options investor is positioning for the price of the underlying stock to appreciate significantly ahead of July expiration day. It looks like approximately 7,500 call options were picked up at the July $50 strike for an average premium of $1.15 per contract. Investors long the calls stand ready to amass profits should CSX shares surge 6.55% over the current price of $48.01 to surpass the effective breakeven price of $51.15 ahead of expiration in July. Call buyers populating the stock today are perhaps preparing for the price of CSX Corp.’s shares, and premium on the July $50 strike calls, to increase following the firm’s second-quarter earnings report slated for release after the closing bell on July 12, 2010. Options players exchanged more than 8,900 call options at the July $50 strike by 1:10 pm (ET).