### Question
What is the definition of security?


### Answer
The definition of **security** is as follows in *15 U.S.C. § 78c*:

> any note, stock, treasury stock, security future, bond, debenture, certificate of interest or participation in any profit-sharing agreement or in any oil, gas, or other mineral royalty or lease, any collateral-trust certificate, preorganization certificate or subscription, transferable share, investment contract, voting-trust certificate, certificate of deposit for a security, any put, call, straddle, option, or privilege on any security, certificate of deposit, or group or index of securities (including any interest therein or based on the value thereof), or any put, call, straddle, option, or privilege entered into on a national securities exchange relating to foreign currency, or in general, any instrument commonly known as a “security”

#### Citation:
  - *15 U.S.C. § 78c*
  - Heading: **CHAPTER 2B-SECURITIES EXCHANGES**

