There are five components of the return to an investor in a
treasury bond, which are as follows:
- The real risk free interest rate: This is the
risk-free rate that investor can earn on their investment and this
is the base rate to which all other investments are compared.
Three-month US treasury bill can be considered as the risk-free
rate.
- Inflation premium: Inflation premium is as
addition to the return to an investment to adjust the future
expectation of rise in inflation rate. For example, the inflation
premium is low on the short term bond and higher on the long-term
bonds as inflation will rise in long-term to a great extent rather
than in a short-term period.
- Liquidity premium: Liquidity premium is a rate
of return that investors earn on their investment as sometimes
bonds doesn't trade very often. Therefore, to solve the liquidity
problem inverstors earn liquidity premium over the risk-free
interest rate. Size of liquidity premium depends on to what extent
the market is active.
- Defult risk premium : Default risk premium is
a premium that investors earn for believing that the company might
get default in it's obligations in future. To compensate the future
probability of getting default investors earn defaut premium on
their investments.
- Maturity premium: Maturity premium is a
premium that investors will earn to compensate the future value or
maturity value of the bond as interest rate changes which effect
the valuation of bonds. Suppose, A is having bonds worth $10,000
and earn 4% on it yearly with a maturity of 30 years. So, he will
get $400 annually for holding a bond. On maturity he will get his
$10,000 back. If you sell the bonds in a short-duration you will
get the same amount. Maturity premium is the difference between 30
year treasury bond and 10 year treasury bond as 30 year treasury
bond possess higher risk so investors will demand maturity premium
to compensate that risk.