Tokyo stocks opened slightly lower Thursday as investors locked in gains after the Nikkei index's five-day winning streak and awaited the outcome later in the day of the Bank of Japan's policy meeting.
In the first 15 minutes of trading, the 225-issue Nikkei Stock Average fell 100.99 points, or 0.36 percent, from Wednesday to 27,579.27. The broader Topix index was down 9.82 points, or 0.50 percent, at 1,936.62.
On the top-tier Prime Market, decliners were led by iron and steel, pharmaceutical, and securities house issues.
At 9 a.m., the dollar fetched 138.41-44 yen compared with 138.21-31 yen in New York and 138.12-14 yen in Tokyo at 5 p.m. Wednesday.
The euro was quoted at $1.0181-0182 and 140.92-96 yen against $1.0176-0186 and 140.66-76 yen in New York and $1.0225-0227 and 141.23-27 yen in Tokyo late Wednesday afternoon.