The gaming sector mirrored the rest of Wall Street last month, which several analysts termed as the best January in more than a decade. All 10 publicly traded casino operators and slot machine manufacturers charted by Las Vegas-based financial adviser Applied Analysis posted gains in average daily stock price during the month, which ended Tuesday. The performances pushed the company's Gaming Index, which considers some 300 market variables, up almost 12 points to close at 438.77. Two companies, MGM Resorts International and Boyd Gaming Corp., showed double-digit increases in average daily stock price, beating other companies, such as Wynn Resorts Ltd., and Las Vegas Sands Corp., which have large holdings in Asia. Applied Analysis principal Brian Gordon said the investor speculation suggested value was being assigned to the companies whose holdings are more Las Vegas-centric than the rest of the publicly traded sector.