Keep an eye on shares of fast food chain operator Sonic Corp (SONC) in Wednesday's trading session. In its fiscal second quarter, the company said profits nearly doubled compared to a year ago. Revenue also grew 15%, topping Wall Street expectations. The largest U.S. chain of drive-in restaurants, reported better than expected earnings along with double digit same store sales. Looking ahead to fiscal year 2015, the company said its business momentum will likely continue. It expects same-store sales growth to outperform. Shares have gained more than 72% over the past 52-week period. TheStreet's Kurumi Fukushima reports in New York.