PTLO ▲ +0.5% - Portillo's Inc. $PTLO - Portillo’s Celebrates National Cheeseburger Day with Plans for a New Restaurant in Buford, Georgia Portillo's shares rose 0.5% following the company's announcement of a new restaurant location in Buford, Georgia and its celebration of National Cheeseburger Day. The expansion signals continued growth in the chain's footprint outside its traditional Midwest base. 18-SEP-2026 07:30 AM ET