bond, fixed-income, security, stock, real assets, financial assets, financial instruments, investor, lender, borrower, interest, principal, face value, maturity, treasury bills + notes + bonds, agency bonds, municipal bonds, corporate bonds, medium-term notes, commercial paper, structured notes, investment-grade, noninvestment grade, default, risk, asset-backed securities, securitization, mortgages, mortgage loan, mortgage bond, pledge, lien, residential mortgage, commercial mortgage, prime borrower, subprime borrower,