Fidelity Investments is a provider of financial services and investment resources to individuals and financial institutions. The company offers brokerage, retirement, estate planning, wealth management, securities execution and insurance services. Its subsidiary, Fidelity Management & Research Company, provides computer-based operating systems, which offer SEC filings, trading information and research notes on several companies located throughout the world. Fidelity Investments brokerage services feature margin borrowing, unlimited check writing, and sale and purchase of stocks, bonds and mutual funds from well-known fund companies. In addition, the company provides financial advisory services from institutional traders, third-party administrators, insurance companies and other financial intermediaries. Fidelity Investments maintains its presence in Merrimack, N.H.