Over the past five years，trust behavior and its risk factors in China’s stock market have attracted much attention。One of the factors is the equity funding with leverage involved in the trust business. However，there has been a serious information asymmetry in this field and the lack of public statistical information. It has made some adverse effects on professional analysis and regulation of related issues. This report attempts to reveal some specific trust behavior characteristics through the limited and available stock market data information. The data comes from the regular disclosure reports of A-share listed companies in the period from 2013 to the third quarter of 2018. Here focuses on the statistics of trust companies and trust plans among the top ten circulating shareholders，include the sample number，capital scales，proportion of trust companies and trust plans. The report consists of two parts. One is to discuss the relative stress situations，risk events and recent behavioral characteristics in 2018. The other is to describe the characteristics of periodic behavior over the long term. In addition，the report describes the characterization of some overall and detailed characteristics，such as industry characteristics in cross-section data，individual company characteristics，and periodicity characteristics in time series data.