Continued fund flow into the top names in Thailand has resulted in this. AOT is now the most valuable airport operator in the world!

Powered by a 75 percent gain since May 1, the operator of Thailand’s main international airports also passed the 1 trillion baht ($31 billion) market capitalization mark, joining only state-controlled energy company PTT Pcl above that milestone. Shares of Airports of Thailand jumped 9.2 percent in December — rallying for a 10th consecutive month — as government data showed international tourists in November jumped 23 percent.

Source: Bloomberg