Tokyo stocks rebounded from slump in the previous day by Friday's break, following an overnight gains on Wall Street. The 225-issue Nikkei Stock Average was up 22.30 points, or 0.15 percent, from Thursday to end the morning at 15,029.36. The broader Topix index of all First Section issues on the Tokyo Stock Exchange was up 6.46 points, or 0.53 percent, to 1,230. 55. Advancers were led by steel, utility and shipping issues, while decliners included warehousing and real estate issues.