Investment alternatives a security is a legal document that shows an ownership interest Although securities are historically associated with financial assets, they are also applicable to real assets. Securitization is the process of converting an asset or collection of assets into a more marketable form Strong Cl-The Concept of Investing 141 - 4 Strong C1 – The Concept of Investing Securitization is the process of converting an asset or collection of assets into a more marketable form. A security is a legal document that shows an ownership interest. Although securities are historically associated with financial assets, they are also applicable to real assets. Investment Alternatives