March 'roars' in for pizza brands, just not in a friendly way There was nothing very friendly about the prices that greeted pizza operators at the start of March, both for their companies and the commodities they need to do business. From higher gas and cheese prices, to lower stock value, March 'roared' in without much sympathy for pizza operators. (Photo: iStock) March did indeed roar in a little like an angry lion for pizza operators, who saw commodity prices rise, though the stock value of their brands fell for all but one of the publicly traded brands monitored by Pizza Marketplace weekly.