About 50 Chinese state-owned companies are trying to bolster investor confidence by rolling out share buybacks or plans by big stockholders to expand their holdings after a series of other measures to prop up the stock market fell short.
Move to boost investor confidence comes after government efforts fell flat

China's benchmark CSI 300 Index has dropped more than 6% this year.
About 50 Chinese state-owned companies are trying to bolster investor confidence by rolling out share buybacks or plans by big stockholders to expand their holdings after a series of other measures to prop up the stock market fell short.