At the close, the Nikkei 225-stock average was up 361.49 points, to 23,808.30.

The Nikkei average gained 5.7 percent for the week, to close at 16,378.78.

The Nikkei average of 225 issues closed down 124.45 points, or 0.8 percent, to finish the day at 15,373.34.

The Nikkei average of 225 stocks lost 266.43 points, or 1.1 percent, to close at 23,811.91.

The Nikkei 225 average fell 575 points, or 1.8 percent, to 31,876.86 during the six trading days through yesterday.

The Nikkei average of 225 issues plunged 688.72 points, or 2.79 percent, to close at 23,996.75.

The Nikkei average of 225 stocks closed at 26,297.84, down 192.63 points, or 0.73 percent.

The Nikkei average had fallen 543.64 points, or about 2.4 percent, yesterday.

Stocks fell almost across the board, and the 225-issue Nikkei average lost 535.01 points, or 1.43 percent, to end the morning at 36,843.01.

The 225-share Nikkei average was down 851.39 points, or 3.61 percent, at the close of trading to 22,715.