2016 has been a surprisingly good year for gaming stocks. Wynn Resorts, Limited (NASDAQ: WYNN), Las Vegas Sands Corp. (NYSE: LVS), and MGM Resorts International (NYSE: MGM) all surged by double digits, helped by some signs of recovery in Macau. But Caesars Entertainment Corp. (NASDAQ: CZR) lagged well behind competitors, actually losing ground this year. How did Caesars become the worst gaming stock of 2016?