The key Nikkei stock index advanced Tuesday for the seventh consecutive session to end at a fresh high for the year, buoyed by optimism about a nearing agreement for a partial trade deal between the United States and China.

The 225-issue Nikkei average ended up 106.86 points, or 0.47 percent, from Monday at 22,974.13. The broader Topix index of all First Section issues on the Tokyo Stock Exchange finished 14.25 points, or 0.86 percent, higher at 1,662.68.

Major gainers were led by consumer credit, nonferrous metal and precision instrument issues.