Quadrix: is a stock rating system that uses more than 90 variables in seven major categories to determine the value of a stock.

Quant fund or quant fund: is an investment fund whose securities are chosen based on numerical data collected through quantitative analysis. These funds are considered non-traditional and passive.

Quantitative easing (QE) is a form of monetary policy in which a central bank buys securities on the open market to reduce interest rates and increase the supply of currency.

Quarter (Q1, Q2, Q3, Q4): a quarter, or quarter, is a three-month period in a company's financial calendar that serves as the basis for the mandatory periodic reporting requirements for publicly traded companies.