Treasuries are the securities that theUS government issues for the completion of government projects. They are of different types like, treasury bills, treasury bonds, treasury inflation-protected securities, etc.
Municipal securities are the debt securities issued by a State, Municipality or County in order to finance its capital expenditure. These are exempted from federal, state and local taxes. Capital gains on these securities are taxable in terms of federal income taxation. These are of two types, i.e., tax-backed debt obligations and revenue bonds.
Corporate debt instruments are the financial obligations of a corporation having priority over the claims of the shareholders (equity or preferred) at the time of bankruptcy of such corporation. These instruments can be issued either through public offer or private placements. These are of different types like bonds, medium-term notes and Commercial Papers.
Asset-backed securities are the securities that are secured by a pool of financial assets. These are necessarily pooled up in order to make them tradable because independently each of them cannot be easily traded in the capital markets. Mortgage-backed security is one type of Asset-backed security, which is secured by a pool of mortgage loans.
International bonds are the bonds issued in a country by a non-domestic entity. These are of different types like global bonds, sovereign debt, emerging market bonds etc.