transferable securities definition
DEFINITION of 'Non-Security'. A type of investment that is not as freely marketable or transferable as a security.Unlike a security, a non-security does not require the backing of an underwriter or bank, and involves much less documentation and paperwork. security is an instrument representing a freely transferable and salable investment, which includes the risk of loss in value. Securities include assets such as stocks, mutual funds, government bonds and debentures.