On Monday, MasterBeef Group (MB.US) shares soared and triggered the NASDAQ circuit breaker mechanism. Prior to the trading halt, the stock had gained 72.68%, reaching $6.13 per share. MasterBeef Group is a Hong Kong-based full-service restaurant group that specializes in Taiwanese hot pot and Taiwanese barbecue. The company operates 12 restaurants through its Hong Kong operating subsidiaries under the Master Beef and Anping Grill brand names.