1, The full form of PTC is Primary Teachers Certificate.

2, The full form of PTC is Pass-Through Certificates

Pass-through certificates are fixed-income securities that represent an undivided interest in a pool of federally insured mortgages put together by a government-sponsored agency, such as the Government National Mortgage Association (Ginnie Mae).

A large percentage of mortgages that have been issued to borrowers are sold in the secondary mortgage markets to institutional investors or government agencies that buy and package these loans into investable securities. These securities are then offered for sale to investors who expect to receive periodic interest payments and a principal repayment upon maturity of the securities.