Denny's (DENN) gains on stock buyback

Denny's Corp. DENN shares hiked 3.2% to $11.64. The company late Wednesday said its board of directors has authorized an additional $100 million stock buyback plan, boosting the company's program by 10 times. As of Tuesday, Denny's had repurchased 21.6 million shares since initiating its share repurchase program. Share volume was 130,000, compared to an all-day average of 206,000