Rave Restaurant Group (RAVE) shares are up over 40% since the company behind the growing Pie Five chain changed its corporate title from Pizza Inn Holdings in January. That said, there is more to the pizza purveyor’s success than a new stock ticker, said Randy Gier, CEO of Rave Restaurant Group. 'I don’t think it’s just the rebranding that is bringing the stock up,' said Gier. 'It’s the fact that people are excited about what we are doing. They are excited about seeing Pizza Inn turn around. They are excited about the prospects of Pie Five as we pioneer this whole new segment.' Gier was appointed CEO of Rave Restaurant Group in November 2012. Rave’s newest venture, Pie Five Pizza, opened its first location in 2011. More than 100 company-owned Pie Five units are slated to open over the next 4-5 years, and total franchise store commitments will take them well over 500 restaurants in that same period, according to Gier.