Meaning – A slang term for an uneducated or unsophisticated investor.
The term is considered a derogatory remark in the financial sector, often used to refer to poor investment choices. Financial professionals might recommend an “Aunt Millie” investment to clients who are unfamiliar with investing. Analysts may use the term to berate a stock or other security. For example, one may say that investing in a certain stock is so foolish, only Aunt Millie would buy it.