Total-Assets Time Series for China Merchants Securities Co Ltd. China Merchants Securities Co., Ltd. operates wealth-management and institutional, investment banking, investment management, investment, and trading businesses in the People's Republic of China. The company trades in stocks, funds, bonds, futures, and other derivatives. It also offers value-added services, such as investment consultancy and portfolio recommendation, sales of products, account assessment, and asset allocation; and capital-based intermediary services, including margin financing, securities lending, and stock pledge repo; and investment research services comprising sales and trading, prime brokerage, and other services. In addition, the company provides domestic and international equity financing, debt and structured financing, over-the-counter listing, financial advisory, and other services to corporate clients; and investment management services, including collective asset management, separately managed accounts, specialized asset management, and equity investment fund management. Further, it engages in proprietary trading and market-making business, which includes equity and fixed-income securities, commodities, alternative investments, over-the-counter financial products, and other derivatives. The company was founded in 1991 and is based in Shenzhen, the People's Republic of China.