Finance investment is putting money into something with the expectation of gain, that upon thorough analysis, has a high degree of security for the principal amount, as well as security of return, within an expected period of time. In contrast putting money into something with an expectation of gain without thorough analysis, without security of principal, and without security of return is gambling. Putting money into something with an expectation of gain with thorough analysis, without security of principal, and without security of return is speculation.