Shin shares gained 121 percent from when Thaksin took office on Feb. 9, 2001, to when his family sold the company on Jan. 23, 2006, compared with a 128 percent gain in the benchmark SET index, according to data compiled by Bloomberg. Siam Cement Pcl, Thailands fourth-biggest company, which is controlled by the monarchys investment arm, gained 717 percent in that time.