Tokyo stocks tumbled today at the close of trading, as key sectors including real estate and exporting companies declined, amid a rise in the value of the yen against the dollar. The 225-issue Nikkei Stock Average ended down 975.49 points, or 2.49 percent, from the price of yesterday which was at 38,126.33. The broader Topix index finished 90.57 points, or 3.24 percent, lower at 2,703.69. Source: Oman News Agency