A large diagonal call spread traded in Baxter International a moment ago, as a customer bought 20,000 Nov 47.5 calls and sold 20,000 Aug 45 calls for a 43cent debit on the CBOE. Shares are up 35cents on the day to $45.70, and this up and out roll likely closes a long position in the Aug 45calls opened on June 15th for 92cents when shares were near 42.13.