Thai stocks fell 1.29 percent Tuesday on profit taking in energy shares, an analyst said. The Stock Exchange of Thailand (SET) composite index lost 8.74 points to close at 668.48 and the blue chip SET-50 index was down 7.88 points to 469.50. Decliners outnumbered advancers 189 to 133 and 130 stocks were unchanged with turnover of 2.9 billion shares worth 20.2 billion baht (602.1 million dollars).