Definition: Morningstar is an independent research provider for individual investors and financial advisors. The company provides research primarily on stocks and mutual funds.
Advice: Morningstar is a highly-regarded company that rates stocks and mutual funds for investors. The company is largely known for its popular "star" rating system.
Highly rated mutual funds are those thought to provide investors with high, risk-adjusted returns. Highly rated stocks are those that are trading significantly below their "fair value", as estimated by the company.
Definition: The sell-side of Wall Street are the investment banks and brokers. They produce research that is then disseminated to their clients.Advice: Sell-side research is burdened by conflicts of interest and you should take it with a grain of salt.