Tokyo - Tokyo stocks opened lower Thursday due to concerns over credit woes ahead of upcoming earnings reports of US financial institutions. 

The Nikkei 225 Stock Average lost 12.64 points, or 0.1 per cent, to 13,039.49. 

The broader Topix index of all first-section issues was also down 0.62 points, or 0.05 per cent, to 1,284.91. 

On currency markets at 9 am (0000 GMT), the dollar traded at 106.85-90 yen, down from Wednesday's 5 pm quote of 107.52-54 yen. 

The euro was quoted at 1.5729-34 dollars, up from Wednesday's 5 pm quote of 1.5680-81 dollars, and at 168.11-16 yen, down from 168.60-64 yen. (dpa)