While a number of hospitality researchers have investigated hospitality stock returns, few examine the stock returns of casino gaming companies. In finance, these stocks are often termed as 'sin' stocks. The purpose of this study is to compare the stock returns of cross-listed casino gaming stocks in Hong Kong and New York stock exchanges. Four pairs of casino gaming stocks are currently cross-listed in both exchanges, allowing for comparison. The cross-listing sample consists of 3138 firm-day observations from January 2009 to December 2013. Preliminary analyses, using time-series regression, show that the average daily returns and standard deviations of casino gaming stocks are much higher than market indices in both jurisdictions. Most importantly, casino gaming stocks listed in Hong Kong exchange have a significantly higher abnormal return than their cross-listed counterparts in the US. The reason may be due to cultural issues. These findings will have meaningful implications to investors of casino gaming companies.