Shares of VMware (VMW) rose Thursday after the company gave a robust forecast at its annual analyst day, or strategic forum, held Wednesday along with his majority owner EMC (EMC). EMC and VMware spoke of plans to pursue software-defined networking and cloud-based computing services, and they said they would spin off a Big Data unit, Pivotal Initiative, as IBD reported. Pivotal is led by former VMware CEO Paul Maritz. At the event Wednesday, VMW