What Is a Variable Interest Rate? A variable interest rate (sometimes called an “adjustable” or a “floating” rate) is an interest rate on a loan or security that fluctuates over time because it is ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...

Get the latest news and market analysis from our in-house experts. Unlike variable cost which is subject to change depending on volume of a product or service provided, fixed costs are those which do ...