The Nikkei 225 index closed little changed at 37,754 on Friday, while the broader Topix edged up 0.05% to 2,741. Japanese stocks struggled to find support as weak economic data weighed on sentiment. Investors remained cautious after Japan's economy contracted 0.2% quarter-on-quarter in the first quarter, the first decline in a year and less than the expected 0.1% drop. The data heightened concerns raised earlier this week by the Bank of Japan, which warned that the economy could slow due to pressure from U.S. trade policy. Japanese markets also followed the U.S. tech sector in its decline, hit by profit-taking overnight. Domestic tech stocks were broadly weaker, with Disco and Advantest down 1.9% and Tokyo Electron down 2.8%. Some non-tech stocks provided some support, however. Mitsubishi UFJ rose 0.9%, Mitsubishi Heavy Industries gained 3.1% and Sanrio surged 7.4%.